WAY TO YOUR'S CAREER
Saturday, April 30, 2011
ISRO APTITUDE PAPER 2009
1) Special software to craete a job queue is called
a) driver
b) spooler
c) interpreter
d) linkage editer
2)When a process is rolled back as a result of deadlock the difficulty arises is
a) Starvation
b) System throughput
c) low device utilization
d) cycle stealing
3)On recieving an interrupt from an I/O device the CPU
a) Halts for a predefined time.
b) Branches off the interrupt service routine after completion off the current instruction.
c) Branches off to the interrupt service routine immediately.
d) hands over the control of address bus and data bus to the interrupting service.
4) Which of the following is true of the auto increment addressing mode?
1. It is useful in creating sef relocating code.
2)If it is induced in an instruction set architecture , than an additional ALU is required for effective
address calculation.
3) The amount of increment depends on the size of the data item accessed.
a) 1 only.
b)2 only
c) 3 only
d) 2 and 3 only
5) Theprimary purpose of an operating system is
a) To make the most efficient use of the computer hardware.
b) to allow people to use the computer.
c) To make the system programmers employed.
d) to make computers easy to use.
6)consider the cpu intensive processes which require 10,20,30 time units and arrive at time 0,2,6
respectively.how many context switches are needed if the operating system impements a shortest
remaining time first sceduling algorithm?Do not count the context switches at the time 0 and end.
a) 1
b) 2
c) 3
d) 4
7) consider a system having n resources of the same type.These resources are shared by 3 processes
A,B,C .These have peak demands of 3,4,6 respectively.For what value of n deadlock won't occour.
a) 15
b) 9
c) 10
d) 13
8) In which addressing mode the effective address of the operand is computed by adding a constant
value to the content of the register?
a) absolute mode.
b) indirect mode
c) immediate mode
d) index mode
9)the process of organizing the memory into two banks to allow 16 bit and 8 bit data operation is called
a) bank switching
b) indexed mapping
c) two way memory interleaving
d) memory segmentation
10)a one dimensional array A has indices 1-75.Each element is a string and takes up three memory
words. The array is stored in location 1120 decimal. The starting address of A[49] is
a) 1267
b) 1164
c) 1264
d) 1169
11) The microsystems stored in the control memory of a processor have a width of 26 bits. Each
microinstruction is divided into three fields : a microoperation field of 13 bits, a next address field(X),
and a MUX select field(Y). There are 8 status bits in the inputs of the MUX.How many bits are there in
the X and Y fields and what is the size of the control memory in number of words?
a) 10,3,1024
b) 8,5,256
c) 5,8,2048
d) 10,3,512
12)The use of multiple register windows with overlap causes a reduction in the number of memory
accesses for
1.function locals and parameters
2. register saves and restores.
3. instruction fetches.
a) 1 only
b) 2 only
c) 3 only
d) 1,2,and 3
13)Which of the following about relative addressing mode is false?
a) it enables reduced instruction size.
b) it allows indexing of array element with same instruction.
c) it enabkles easy relocation of data.
d) it enables faster address calculation than absulute addressing.
14)Substitution of values for names (whose values are constants) is done in '
a) local optimization
b) loop optimization
c) constant folding
d) strength reduction
15)A root a of eq f(x)=0 can be computed to any degree of accuracy if a good initial approximation x0
is chosen for which
a) f(x0)>0
b) f(x0)f''(x0)>0
c) f(x0)f''(x0)<0
d) f''(x0)>0
16) consider the polynomial p(x)=a0+a1x+a2x*x+a3x*x*x. The mininum number of multipliations
needed to evaluate p on an input x is
a) 3
b) 4
c) 6
d) 9
17)Activities which ensure that the software that has been built , is tracable tocustomer is covered as
part of
a) verification
b) validation
c) maintainnace
d) modeling
18) A testing method which is normally used as the acceptance test for a software system is
a) regression testing
b) integration testing
c) unit testing
d) system testing
19)A locked database file cab be
a) accessed by only one user
b) modified by the users with the correct password.
c) used to hide the sencitive information.
d) updated by more than one user
a) driver
b) spooler
c) interpreter
d) linkage editer
2)When a process is rolled back as a result of deadlock the difficulty arises is
a) Starvation
b) System throughput
c) low device utilization
d) cycle stealing
3)On recieving an interrupt from an I/O device the CPU
a) Halts for a predefined time.
b) Branches off the interrupt service routine after completion off the current instruction.
c) Branches off to the interrupt service routine immediately.
d) hands over the control of address bus and data bus to the interrupting service.
4) Which of the following is true of the auto increment addressing mode?
1. It is useful in creating sef relocating code.
2)If it is induced in an instruction set architecture , than an additional ALU is required for effective
address calculation.
3) The amount of increment depends on the size of the data item accessed.
a) 1 only.
b)2 only
c) 3 only
d) 2 and 3 only
5) Theprimary purpose of an operating system is
a) To make the most efficient use of the computer hardware.
b) to allow people to use the computer.
c) To make the system programmers employed.
d) to make computers easy to use.
6)consider the cpu intensive processes which require 10,20,30 time units and arrive at time 0,2,6
respectively.how many context switches are needed if the operating system impements a shortest
remaining time first sceduling algorithm?Do not count the context switches at the time 0 and end.
a) 1
b) 2
c) 3
d) 4
7) consider a system having n resources of the same type.These resources are shared by 3 processes
A,B,C .These have peak demands of 3,4,6 respectively.For what value of n deadlock won't occour.
a) 15
b) 9
c) 10
d) 13
8) In which addressing mode the effective address of the operand is computed by adding a constant
value to the content of the register?
a) absolute mode.
b) indirect mode
c) immediate mode
d) index mode
9)the process of organizing the memory into two banks to allow 16 bit and 8 bit data operation is called
a) bank switching
b) indexed mapping
c) two way memory interleaving
d) memory segmentation
10)a one dimensional array A has indices 1-75.Each element is a string and takes up three memory
words. The array is stored in location 1120 decimal. The starting address of A[49] is
a) 1267
b) 1164
c) 1264
d) 1169
11) The microsystems stored in the control memory of a processor have a width of 26 bits. Each
microinstruction is divided into three fields : a microoperation field of 13 bits, a next address field(X),
and a MUX select field(Y). There are 8 status bits in the inputs of the MUX.How many bits are there in
the X and Y fields and what is the size of the control memory in number of words?
a) 10,3,1024
b) 8,5,256
c) 5,8,2048
d) 10,3,512
12)The use of multiple register windows with overlap causes a reduction in the number of memory
accesses for
1.function locals and parameters
2. register saves and restores.
3. instruction fetches.
a) 1 only
b) 2 only
c) 3 only
d) 1,2,and 3
13)Which of the following about relative addressing mode is false?
a) it enables reduced instruction size.
b) it allows indexing of array element with same instruction.
c) it enabkles easy relocation of data.
d) it enables faster address calculation than absulute addressing.
14)Substitution of values for names (whose values are constants) is done in '
a) local optimization
b) loop optimization
c) constant folding
d) strength reduction
15)A root a of eq f(x)=0 can be computed to any degree of accuracy if a good initial approximation x0
is chosen for which
a) f(x0)>0
b) f(x0)f''(x0)>0
c) f(x0)f''(x0)<0
d) f''(x0)>0
16) consider the polynomial p(x)=a0+a1x+a2x*x+a3x*x*x. The mininum number of multipliations
needed to evaluate p on an input x is
a) 3
b) 4
c) 6
d) 9
17)Activities which ensure that the software that has been built , is tracable tocustomer is covered as
part of
a) verification
b) validation
c) maintainnace
d) modeling
18) A testing method which is normally used as the acceptance test for a software system is
a) regression testing
b) integration testing
c) unit testing
d) system testing
19)A locked database file cab be
a) accessed by only one user
b) modified by the users with the correct password.
c) used to hide the sencitive information.
d) updated by more than one user
Tuesday, April 26, 2011
BEL GRADUATE ENGINEER RECRUITMENT 2011
BHARAT ELECTRONICS LIMITED
(A Government of India Enterprises under the ministry of defence)
BEL GRADUATE ENGINEER RECRUITMENT 2011
Applications have been invited by Bharat Electronics Limited (BEL) for the recruitment on the post of Graduate Engineer. Suitable candidates can on-line apply for this recruitment. 150 vacancy of Graduate Engineer are accessible in following field as Electronics, Computer Science and Mechanical. For details of this recruitment you can read below:
Job name: Graduate Engineer
No. of vacant posts: 150
Electronics – 80
Mechanical – 30
Computer Science – 40
Educational Qualification: Candidates must have bachelor Degree in Engineering in Electronics / Electronics & Communication / Electronics & Telecommunication / Communication & Telecommunication / Mechanical / Computer Science from only AICTE recognized university.
Note: candidates who have Bachelor Degree in Engineering in other subjects can not apply for this recruitment.
Important Dates:
Opening date of on-line application: 27-04-2011
Ending date of on-line application: 10-05-2011
For knowing more information of this recruitment visit here:
http://www.bel-india.com/index.aspx?q=§ionid=144
Official website of BEL: http://www.bel-india.com/index.aspx
Friday, April 22, 2011
CCI MANAGEMENT TRAINEES RECRUITMENT
CEMENT CORPORATION OF INDIA LIMITED
(A GOVT. OF INDIA ENTERPRISE)
CAREER OPPORTUNITIES AS MANAGEMENT TRAINEES
Cement Corporation of India Ltd.(CCI) is a premier profit making Central Govt.
Public Sector Undertaking engaged in manufacturing and marketing of cement. Its vision
is to emerge as one of the best cement companies committed to contribute to the economy
and enhancing the value of stakeholders. CCI is looking for bright, result oriented, dynamic & energetic young Graduate Engineers and HR, Finance & Marketing professionals with brilliant academic record to join the organisation as MANAGEMENT TRAINEES in the following streams:-
• MECHANICAL -8 nos.
• ELECRICAL & INSTRUMENTATION - 03 nos.
• GEOLOGY & MINING - 03 nos.
• CHEMICAL/PRODUCTION - 05 nos.
• HUMAN RESOURCES - 02 nos.
• FINANCE - 03 nos.
• MARKETING - 01 no.
______
Total = 25 nos.
Qualification Full time Bachelor Degree in Engineering or Technology with not less than 60%
marks taking average of all the Semesters/Years, irrespective of the weightage given to any
particular semester/year by the Institute/University. Final year semester students who
expect their result by 01.08.2011 may also apply, however, they have to obtain at least 60%
marks in their engineering degree.
Selection Process
The eligible candidates will have to undergo an all India Selection Test which will be
conducted at the designated cities to be notified later on. Based on merit and requirement,
the list of successful candidates will be made available at CCI website
www.cementcorporation.co.in and short listed candidates will have to appear for Group
Discussion and Personal Interview before the Company’s Selection Board.
Candidates have to secure minimum qualifying marks fixed by the Company at its
discretion in GD and interview.
Screening and selection will be based on the details provided, hence it is necessary
that only accurate, full and correct information is furnished by the applicants. Furnishing of wrong/false information will be a disqualification and CCI will NOT be responsible for any
consequence of furnishing of such wrong/false information.
ABOUT TEST:
The all India Selection Test shall be held at the centres in the designated cities in
India on the same day. The Test will be in Hindi or English. Candidates will have to
choose their medium for test at the time of applying for the post, which cannot be changed
subsequently. The test will be in two parts. Part-I will consist of multiple-choice questions of
the relevant discipline as advertised and Part-II will consist of multiple choice questions on
Executive Aptitude, reasoning etc. The exact date of the test and venue shall be
communicated to candidates through Admit Card and will also be available at CCI website
www.cementcorporation.co.in .
Thursday, April 21, 2011
ONGC 2011 PLACEMENT PAPER QUESTIONS
1. Modulation index increased from 0 to 1 . Transmitted power now ?
2. Deemphasis is used because
3. In FM, maximum deviation at what point of modulating signal
4. Voltage gain of emitter follower : <=1 , =1 , >=1 , cannot say
5. CRO uses which method of focussing
6. Slew Rate unit
7. Positive Feedback is same as : degeneration , regeneration
8. Integrator is : LPF , HPF
9. Lowest Efficiency in Power amplifier : A , B , AB , C
10. When PLL is used as frequency multiplier, O/P is taken from
11. Ideal OP Amp – Input Impedance = ? Output Impedance = ? , Voltage Gain = ?
12. IC 555 uses how many Flip Flop combination
13. PF of inductive circuit : 0 , 1
14. Unit of magnetic flux
15. 2 heater 1000W, 250V connected in series in 250V , 50Hz ac mains. Power drawn =?
16. 100 batteries , 9V each in parallel combination, Voltage across combination ?
17. HTTP = stateful/stateless protocol ?
18. IP address starts with binary address 110 it is class : A , B , C , D
19. Layer responsible for delivery of packet from node to node
20. ADSL behaviour : upload and download which is more or less ?
21. Damping factor = 1 : underdamped , critically damped , overdamped
22. Difference between controlled variable and desired value of process control system
23. Why differentiator is not part of control system : Increases input noise , increases error , reduces gain, reduces damping
24. Definitiuon of Transfer Fn
25. Identical Telephone no. under different exchanges are distinguished by : Modulation indices , language digit , access digit , area code
26. Which is analog : DCM , DM , DPCM , PWM
27. Carrier synchronization not needed in : BPSK , DPSK , QPSK , QAM
28. Common ckt in Freq Hopp Spread Spectrum and Direct Seq Spread Spectrum : correlator , Freq Synthesizer , Sweep Generator , Pseudo Random Noise Code Generator
29. Bit Rate _ Baud Rate ? : > , < , =
30. Minimum Bwto transmit 56 kbps with no noise ?
31. Asynchronous data transfer : start stop as mark and space
32. f = 10 kHz sampled at Nyquist rate time int B/W 2 success samples ?
33. Find correct parity as odd parity : Rightmost bit as parity bit : 1111111 1 , 0011010 1 , 1100110 1 , 0000000 0
34. Dynamic memory cell store data in : register , capacitor
35. +0.5 V in TTL logic is : high , low , undefined , high impedance
36. Convert BCD 0001 0111 to binary
37. Resolution of 6 bit DAC
38. 5th clock of johnson counter gives o/p = 0111 , 6th clock gives o/p = ?
39. Lissajous figure are eant for measuring : R , V , I , f
40. Unit of Voltage Sensitivity : Ohm/V , V/Ohm , Ohm V , V
41. Volts / div on CRO changes : gain in vertical / sec , : gain in horizontal / sec , freq of timebase , freq of trigger
42. Measurement of Q is based on principle of : Resonance , Mutual Inductance , Piezoelectric Effect , Peltier Effect
43. Laser light is brighter because : Pure , Coherent , White , Monochromatic
44. Contents of Instruction Poointer Specify
45. Waveguide has cut of freq = 17KHz . Which freq will not pass by waveguide : 15 Khz, 22 Khz
46. 1 nepar = _ db
47. Transmission length < (lambda/4) in short ckt behaves as
48. Holding ckt in SCR
49. Centre tapped transformer in single phase cycloconeuses : 2 , 4 , 6 , 8 SCR
50. Maximum height of satellite : Apogee , Perigee
51. Satellite stays in orbit because : Satellite wt. + speed , gravitational pull + inertia , centripetal force +speed , satellite wt +pull of sun and moon
52. FET depends on controlling current through SC change : 1 polarity , 2 polarity , 4 , 8 polarity
53. Beta : Current gain in CC Mode , Current gain in CE Mode, Voltage gain in CC Mode, , Voltage gain in CE Mode
54. Flash Analog To Digital of each comparator is connected to : decoder , priority encoder , MUX , Demux
55. To serially shift a nibble of data in shift register there must be clock pulses : 2 , 4 , 8 , 1 clock pulse for each data
56. Mod 10 counter uses Flip flop : 10 , 4 , 2 , 8
57. Which family IC have better noise immunity : TTL , ECL , CMOS , DTL
58. Address required for 4096 bit memory arranged in 512 X 8 memory
59. When 8 bits serial in / out shift reg. I sused for 20 (mew)sec time delay. Find clock frequency
60. Conversion time of 6 bit successive approximation type ADC : 32 , 64 , 6 , 1/6 usec
61. Wein Bridge is used to measure : f , L , R , C
62. Fibre optic cable best for high speed data transfer : single mode step index , multiple mode step index , single mode graded index , multiple mode graded index
63. Microcontroller includes : CPU + Memory + I/O + Clock Generator , CPU + Memory + I/O , CPU + I/O
64. Fetch cycle is : 1st part of instruction cycle ,
65. Flag to manipulate movement of string : parity , zero , direction , inter
66. Microwave signal propagates by way of : direct , surface , sky , standing wave
67. Makes equivalent current generator in circuit analysis : Norton , Thevenin , Maxm. Power Transfer , Superposition
68. When HPF and LPF section are connected in // it as Band reject filter with : fl > fh , fl = fh , fl < fh
69. When peak transmitted power of a radar is increased by a factor of 16 , maxm range increases by a factor : 2 , 4, 8, 16
70. Tunnel diode : is a point contact diode with high reverse resistance, is highly doped pn junction diode
71. Arrow head of transistor symbol indicates : (drift / diffusion of electron/hole)
72. TRAPATT
73. Currently nearly equal : Ic Ie , Ib Ie , Ic Ib , Ib Ic Ie
74. Aspect ratio : raster width + height , Horizontal scanning frequency + Vertical Scanning frequency.
DRDO ENGINEERS EXAM 2011 QUESTIONS
1. Which type of architecture 8085 has?
2. How many memory locations can be addressed by a microprocessor with 14 address lines?
3. 8085 is how many bit microprocessor?
4. Why is data bus bi-directional?
5. What is the function of accumulator?
6. What is flag, bus?
7. What are tri-state devices and why they are essential in a bus oriented system?
8. Why are program counter and stack pointer 16-bit registers?
9. What does it mean by embedded system?
10. What are the different addressing modes in 8085?
11.What is the difference between MOV and MVI?
12. What are the functions of RIM, SIM, IN?
13. What is the immediate addressing mode?
14. What are the different flags in 8085?
15. What happens during DMA transfer?
16. What do you mean by wait state? What is its need?
17. What is PSW?
18. What is ALE? Explain the functions of ALE in 8085.
19. What is a program counter? What is its use?
20. What is an interrupt?
21. Which line will be activated when an output device require attention from CPU?
22. Write the truth table for full adder and implement it in NAND gate only.
23. What's the difference between looping 0s and 1s in K map?
24. Difference between microprocessor and micro controller
25. Microprocessors you are familiar with
26. How will you send and receive data to a micro-processor? (One method is I/O mapped I/O which is the other one?)
27. Radar range equation?
28. Does the radar range depend upon the frequency of the signal transmitted?
29. What is Doppler shift? What is its importance?
30. I will make two fuzzy statements. Pencil is long. Table is long. What is the term long signify?
31. What is a membership function?
32. What are the design criteria for very low frequency amplifier?
33. Can you measure distance with the help of CW radar? If so how?
34. How will you design a stable oscillator? (Not with crystal oscillator because temperature affects it)
35. You have designed an amplifier. After few days it is found that its gain have changed. What might be the reason?
BARC PLACEMENT PAPER 2011
1. matched pair of transistors is particularly useful for
A) Differential amplifier
B) High gain amplifier
C) High input impedance amplifier
D) Low output impedance amplifier
2. Magnetic flux density can be measured by using
A) ,Q, meter
B) AC voltmeter
C) Hall probe
D) Energy meter
3. In closed loop type of A/D conversion the fastest technique is :
A) Successive Approximation
B) Flash
C) Dual slope integration
D) Counter-ramp
4. When bearing life L10 represents (bearings 10%survive,bearings 10% fails, none )
5. For welding high carbon steels which type of flame is used (oxidizing, carburizing, neutral, none)
6. Arrange the following cutting tools in decreasing order of machining hardness…Ceramics
7. When P1 and P2 are the loads acting on bearings with life L1 and L2 then L1/L2=? L1/L2={P2/P1}10/3
8. Product simplification does not mean? (Product characterization)
9. Which of the following process has the most scope in manufacturing? CAD/CAM, CAM, CIM, All the above.
10. Rankine cycle efficiency for same parameters increases mostly with_(reheat, regeneration, super heating )
11. Ericson cycle with all reversible processes assume_(carnot cycle,stirling,brayton
12. Air delivery tank at outlet of reciprocating compressor is provided for_ (provide constant pressure, avoid cavitation, )
13. High speed centrifugal pump has _? (vanes faces in forward direction side,backward,radial vanes)
14. Thermal efficiency in decreasing order_? (Otto cycle>dual cycle>diesel cycle)
15. Connect two 1O resistors in series, then connect two 1H inductors across one of the resistors such that the ckt looks like a 1O resistor in series with a ?-section of a resistor and two inductors. With the series resistance on the i/p side, calc the transfer function of this ckt
16. Inverse laplace transform of 1/s2[d/ds(e-3s/s)]
17. Lower useful input limit of a transducer is determined by…
18. Air-cored inductors are used for low frequency/high frequency/equal frequency operations.
19. Given 4 pole-zero plots identify which one corresponds to the driving point impedance of a series resonant ckt.
20. Expression for d(n): u(n)-u(n-1)/ u(n-1)-u(n+1)/ u(n)+u(n+1)/...
21.Relation between laplace and z-transform: s=z/ s=ln z/ s=( ln z/T) /…
22. Maxm and minm probability error among ASK,PSK,FSK,DPSK etc
23. Which of the following is a non linear modulation scheme: PAM/QAM/PCM/…
24. Match the following functions: e-t , e-t + et, sin(pt) with causal and stable system, causal and unstable system, etc.
25. Given a ckt with a 50 O resistor in series between two voltage sources of 10 V and 5 V magnitude calc power delivered by 5 V source.
26. Laplace transform of e-3tu(t)+e2tu(-t).
27. Which photodetector has output affected by own intrinsic noise: PN/APD/PIN/all.
28. AC signal conditioning is used for inductive and capacitive/resistive/piezoelectric transducers/all of the above.
29. When I mode is added to proportional control system stability increases/ decreases/ steady state performance deteriorates/damping increases.
30. Reset control is another name for integral/derivative/proportional/…. Control.
BARC PLACEMENT PAPER 2011
1. Distinction between FM and PM at high frequencies.
2. Which of these has the least propagation delay RTL/ECL/I2L/CMOS.
3. Switching speed of CMOS is affected/unaffected by changes in supply voltage.
4. Which of these provides a measure of heart rate P/QRS complex/T/none of these.
5. Given a ckt of a logarithmic amplifier you had to identify what ckt was it.
6. JFET can operate in depletion/enhancement/both/none of the above modes.
7. When a BJT operates in saturation the junctions are fwd biased/reverse biased/…
8. BIBO stability criterion implies that poles are within/outside/on the unit circle.
9. For faithful amplification of low amplitude signals the cut-off/active/saturation regions of a transistor is used.
10. Lissajous pattern of a signal rotates 36 times per minute. if the oscillator frequency is 560 kHz then the unknown freq is…
11. % resolution of a 10 bit ADC.
12. To obtain 10 mV resolution on 5 V range how many bit DAC is to be used..
13. Why is LCD preferred to LED.
14. How will 0.6973 be displayed on 10 V range of a 4 ½ digit multimeter.
15. Which of the following cannot be used for an automatic feedback temp ctrl system thermocouple/thermometer/thermistor/IC sensor.
16. Y(n)=X(-n+3) is an example of a linear/non linear and shift variant/invariant system.
17. The falling body method is used to determine viscosity/humidity/….
18. Which of these methods of viscosity measurement gives greatest accuracy falling body method/rotating cylinder method/both/…
19. Some question on gas chromatography
20. A device having a rotor with 3 Y-connected coils and a stator is likely to be a synchro/RVDT/control transformer/…
21. In a twisted ring counter the initial count is 1000. after the 4th clock pulse its state will be….
22. A 240 kHz signal is given into a 3 bit binary ripple counter. The lowest o/p freq obtainable is….
23. For parity bit checking which of the following gates can be used XOR/NAND/OR/XNOR.
24. Why is a BJT called so..
25. Identify the expression for gauge factor of a strain gauge among the given options.
26. In a semiconductor strain gauge as tensile strain is applied what changes take place in the n and p areas..
27. How does a radioactive level gauging system work…
28. A capacitive transducer measuring level works on the principle of change in distance between plates/change in dielectric strength/…
29. For maximum power transfer in an AC circuit the condition to be satisfied is ZL+ZS=0/XL+XS=0/none of these/….where l and s refers to load and source respectively.
30. Find the transfer function from a block diagram.
31. Synchronous ctrs are preferred to asynchronous ctrs bcoz they are faster/glitches at the output can be avoided/both/none of these.
32. The lissajous figure formed on an oscilloscope looks like the English figure of 8. if the vertical channel input is 1 kHz the horizontal input freq is….
33. IE=IC for a transistor in saturation/cutoff/active/both saturation and active regions.
34. Reproducibility of measurements is called accuracy/precision/linearity/none of these.
35. Which of these is not strictly a static characteristic accuracy/precision/tolerance/linearity.
36. The shunt coil in a Q meter has resistance of the order of mO/O/kO/..
37. For measuring inductance of high Q coils the bridge used is Maxwell-wien/Schering/…
38. Which of these measures inductance in terms of capacitance Maxwell and hay/Maxwell and Schering/hay and Schering/…
39. In a flip-flop with preset and clear inputs both are applied simultaneously/clear is cleared when preset is applied/preset is cleared when clear is applied/….
40.. Which of these values of ? gives damped oscillations: 0/1/1.6/0.6
41. For a transformer of ratio 1:a and excited by a source V with impedances Z1 and Z2 on the primary and secondary side value of a for maxm power transfer should be..
42. Fourier transform of cos(?0t) is…
43. At t=0 the step response of a 1st order system is….
44. 555 can be used as a monostable/astable/freq dividing ckt/all of these.
45. In a PT when the secondary is open ckted with the primary excited what will happen.
46. If a system is marginally stable then the nature of oscillations will be…
47. Linear encoders mostly use straight binary/BCD/gray code.
48. For an accelerometer working in displacement mode the ratio of forcing freq to natural freq should be…..
49. According to Eulers theory crippling or buckling load is ____ (Wcr = Cp2EI/l2)
50. During sensible heating, specific humidity_? (remains constant)
GAIL ENGINEERS EXAM 2011 QUESTIONS
1) What is the penalty imposed by US govt if any company leaks the gas into ambient.
2) Which nation president dead in flight crash recently.
3) Who had given the new symbol for Indian currency.
4) Who purchased the home belongs to Gandhiji in Capetown.
5) Which state is having the least population growth rate in year 2009.
6) Who won 2010 Canadian Grand Prix race.
7) Which river is passing towards the Arabian sea.
8) Where is the new high wattage power plant constructed recently.
9) Surrounding which planet some type of ring is identified recently.
10) With which nation army, Indian govt started hand in hand operation.
11) A picotrial graph chart is given about population cencus of five different years of three different parties, asked 4 questions related to chart.
15) A reading comprehension is given and asked 4 questions. RC is too big to read and one question is tough to answer.
16) The resultant of parrallogram?
Ans: R=(P^2+Q^2+2PQCOSQ)^.5
17) Centre of gravity of hemi sphere?
Ans: 3r/8
18) Time of flight of a projectile?
19) Modulus of elasticity for a tapering section?
20) For what angle does maximum shear stress on a body exist when body is subjected to stress in one plain?
21) If a cantilever beam is loaded wid point load at its free end when the load increases at which section it will break first?
22) mx.torsion on a shaft is in what praportion to the dia of shaft?
23) 3-4 ques on spring stifness(numerical)?
24) What kind of rivet arrangement is called as diamond riveting?
25) Which among dese is not dimensionless?
a) Absolute viscosity b) Specific volume c) Specific gravity
26) Laminar flow characteristic related question?
27) Specific speed of turbine?
28) Unit power of turbine?
29) Discharge through a reciprocating pump for single and double acting
30) Which one is intensive property?
a) Entropy b) Enthalpy c) Density
31) Which among these has highest efficiency?
a) otto b) Diesel c)dual
32) Some efficiency related question on rankine cycle and brayton cycle
33) 3 questions from steam nozzle and turbine like nozzle efficency
34) Velocity related questions from impulse turbine
35) One numerical from gas turbine
36) Genral day to day life question based on heat transfer so understand the concept
37) One numerical based on cross and parallel flow
38) One numerical on LMTD
39) What is equivalent length of simple pendulam which gives the same frequency as compare to compound pendulam.
40) One numerical on no teeth and speed of gear
41) Pitch circle is what kind of circle in a gear one gear wid 200 teeths anodr wid 50 teeths meshed 2 gadren how many raotation of smaller gera will make 1 revolution of bigger gear
Ans: 4
42) 2 concept question on governers
43) 2 questions based on balancing of rotating masses
44) 2 questions related to vibration
45) 1 questions on limit fits and tolerance
46) What is endurance limit ratio
47) What is fatigue or stress concentration factor
48) What is the strength of riveted joint
49) What kind of thread is used if power is to be transmitted in 1 direction only
50) Overhauling case will have frictionb angle greater, equal or less than helix angle
51) what combination of material is used 4 bearing manufacture
52) Magnesium is added for which purpose
53) For achieving hardness which procees should be carried(Annealing, normalising, martempering etc)
54) 1 questions related to submerged welding
55) Which welding is done for joining shank of a drill bit (Flash butt welding)
56) What to be use for measuring angle and for locating the w/p at some angle
57) How many nomenclatures are there to completely define a single poin cutting tool
58) One concept question related to upmilling(climb milling)
59) To find out pessimistic time of any project (pert)
60) 2 very basic ques on (fire management)
61) 3 questions related to (Industrial production) like related to routing, schrduling etc
62) 3 economics question (depreciation value calculation, money related conceptual questions)
63) 2 question on (Product design)
SAIL MT EXAM QUESTIONS 2010
1.where does a body have least weight?
a) at the equator
b) at the poles
c) at earth's center
d) none of these
2. what is the millman's theorem?
3. what happens if a dc motor is fed an ac signal?
4. calculate electron mobility.
5. power MOSFET is voltage controlled or current controlled?
6. if u want a 640 k RAM, what specification should u specify in the drive?
7. max efficiency of a class a amplifier?
8.what r resistors in IC made of?
9. 6 girls and 6 bos sitting randomly in a line. what probability of girls being together?
10.what is the prob. of two friends having birthdays in same month?
11. (D^2 + 4)y= kx what if PI?
12. lim x-infinity sinx/x
13. express x/(x+1) as taylor's series
14.principle of jet engine
15. why hydraulic systems used ina aircrafts instead of electrical?
16. steel + ? = corrosion-resistant material?
17. what happens to speed of em wave as frequency increases?
18. which char. of em wave does not change when it travels from one mdium to another?
19. circuit given. find attenuation in db.
20. circuit given. how much feedback?
21. (s-1)/(s+1) is high pass filter/ low pass filter?
22. fastest logic family among rtl, dtl, ttl?
23. in common emitter config. change in iC on changing vBE?
24. what happens if gate voltage of an ON scr is decreased?
25. fermi level change with temperature in n type semiconductor?
26. mosfet has threshold voltage 1v when n+ polysilicon is used in gate. what is threshold voltage when polysilicon used is of n+ type?
27. simple ckts using zener diode.
28. what is the p+ substrate in an isolated pn junction ic connected to?
29. opamp circuit given. open loop gain=100. closed loop gain=?
30. which type of parameters( h/y/z) suitable in particular application?
31. given parallel LC ckt. find angle between currents in branches at resonance.
32. what is Q of series RLC ckt? (voltage gain/ admttance etc.)
33. resonant freq of parallel RLC ckt. ?
34. thin metal foil inserted between capacitor plates. foil connected to one plate. change in capacitance?
35. ques on reflection of em wave at air= dielectric interface. dlc const=9
36. what is brewster's angle?
37. why microwave freq not used for ionospheric propagation?
38. uhf range?
39. freq range used in satellite comunication?
40. which ionospheric bands used for commercial purposes?
Indian Oil Engineers Exam 2011 Questions
1, Series type 4, 9, 14… 14, 19, 24…next series is…
2. Mumbai is sostpk … Chennai dcfmmpk and wat is bench …
3.meaning for the following .. funk, sphemeral, annagonist, appertain
4. GL is…… procedural language, non procedural language , or ?? from (TOC)
5.opposite for the following lurid, niggardly, noble …
6. What is Audit trail ( T) t->
7.HDLC is ……. Protocol ….(T)
8. First IPL Hatrick taken by …(non tech questions)
9. Algorithm will be given which sort u need to identify …. Shell sort, selection sort, bubble sort, insertion sort …(T)
10. X.25 protocol consists of ……frame level, physical level
11 dynamic B… forgot
12. North west direction problem have some idea on this it is enough..
13. Blue vitriol is …..(non tech )
14. Enzyme converts glucose to ethyl alcohol … which is zymase or (+2 question in chemistry)
15. UNIX command to redirect the output file
16. Immediate addressing mode …..
17. Messages are transferred to computer networks through……..
18. Huffman coding …
19. INGRES DBMS – sql, QBE ….
20. MAX size of float is …
21. Operator << is means … extraction, get to, insertion operator..
22. destructor takes .. how many arguments …
23 C supports how many basic looping structures…
24. Page stealing means …..
25. virtual memory is implemented in …. Paging, segmentation…
26. File protection is UNIX ???
27. Goal of structured pgm is …… eliminate the Goto statement or …
28. MACRO is used in …
29. IEE802.4 is also known as ….
30. UML software project requirements …..use case diagram is answer
31. Eye donation means donation of …. The whole eye or cornea or ???
32. electric conduction of semiconductor is…
33. page replacement algorithm is ..
34.MOSFET can be used in
35.80386 is …..
36. Average sums …
37. matrix sum easy one
38. number series sums
39. Basic knowledge about the current affairs
40. General knowledge questions … recent ones
41. Comprehension will be given u need to answer for the questions asked ….easy one
42. percentage sums…
43. cube root sum …
44. ratio sums … don’t study from RS aggrawal for this type … it will not help u much .. jus have a idea …
45. if the hour hand of the clock is 90’ like that sum ..
46.permutaions sum ….. no combinations sum came…permutation of APPLE …
47. some questions like which is the odd one from some English words will be given Like ark, some thing I forgot ..
48. volume sum … like one big is there how many cubes will be formed from the cube like that
49.water is flowing from one pipe which fills the tank in 20 mins.. another two pipes is inserted how many mins it will take to fill the tank ..easy one … just need to think
50. coding is given … compile error, run time error like that from C language
51. Compiler will …. a, find logical error, b, synatax errors like that
52. more questions on preorder, post order, in order
Some graph will be given .. will ask u about the traversal …. Sure u need to know about this type questions .. very important ..Data structure questions
53. linked list
54. LIFO ….
55. Heap ….
56. Stack follows … lifo, fifo ….
57. Hashing,
58. some query is given … all data’s will be given u need to find the result from the query ..
59.dead lock ….
60. Addressing modes…
BEML ENGINEERS 2011 EXAM QUESTIONS
1. SI Unit of temperature....
2. Unit of Young's modulus....
3. Property of fluid which offers resistance against Tensile stress...
4. Mercury do not wet the glass, this is because of.....
5. Which law states that Specific heat is constant at all temp and pressures...
6. Seam Welding is a.......
7. The welding process which uses a consumable Electrode......
8. Steel balls are produced by....
9. The gear box in an automobile is located between....
10. Supercharging is very much essential in......
11. Superheating is done at...
12. Priming is needed in.....
13. Which of the following pump is used for lifting viscous fluids...
14. Scavenging is the process of..
15. Dew point temperature
16. Wet bulb temperature...
17. Most of the domestic refrigerators works on........cycle
18. Which of the following joining process has lowest strength...
19. Copper is (About spot welding)...
20. The very essential desired property of an measuring instrument is....
21. Precision is defined as
22. CPM is the technique of...
23. Value Engg is the study of..
24. In a press work, the size of the hole pierced is dependent on the...
25. Trimming is associated with...
26. Rivets are made of........materials
27. The decrease /absence of toughness of a material implies that the material is..
28. The property of material by which it can be beaten into plates is called....
29. Type of chips produced while machining Cast iron are....
30. Bearings which require no lubrication are called....
31. Ceramics are produced by....
32. The accuracy of holes are measured with..
33. Tool life depends on....
34. Surface tension is...
35. Engine pistons are made by Aluminium because it is....
36. No lubricant is required while cutting threads on....
37. The internal and external taper in a Turret lathe are achieved by...
38. The scientific study of human and his relations in an organisation is called....
39. 1 Tonne of refrigeration is referred to....hours
40. Blades of Gas turbine are made up of.....
41. Crater wear occurs on.....portion of tool
42. Gears used to transmit power from non parallel and non intersecting shafts.......
43. The general gas equation...
44. The change of entropy depends on....
45. With 100% relative humidity, the wet bulb temp...(With regard to dew point temp)
46. When two pieces are joined together by butt with a cover plate with two rows of rivets is called..
47. The process of increasing hardness by cold working is called....
48. Ratio of Indicated HP and Brake HP is known as....
49. The product of mass and velocity is called as...
50. One watt is equal to.....
51. The lathe is having...... a) Internal threads
52. The bed of lathe is made by....(Material)
53. Gantt charts are used for....
54. Basic tool for work study......
HPCL MUMBAI Solved Paper 2011
1. Casse grain feed is used with a parabolic reflector to
a.) increase the gain of the system
b). increase the bandwidth of the system
c.) reduce the size of the main reflector
d.) allow the feed to be placed at a convenient point.
2 In most microwave communication link rain drop attenuation is caused due to-
a.) scattering of microwaves by water drops of specific size.
b) scattering of microwaves by a collection of droplets acing as a single body.
c.) absorption of microwaves by water and consequent heating of the liquid
d.) absorption of the microwaves by water vapor in the atmosphere.
3. When a (75 – j40)W load is connected to a coaxial line of Z0 = 75 W at 6MHz then the load matching on the line can be accomplished by connecting-
a.) A short – circuited stub at the load
b.)An inductance at the load
c. )A short circuited stub at a specific distance from the load
d.)none of the above
4. As compared to analog multimeters, digital Multimeters's are –
a.) less accurate
b.) more accurate
c.) equally accurate
d.) none.
5. When a signal of 10 mV at 75 MHz is to be measured then which of the following instruments can be used –
a.) VTVM
b.) Cathode ray oscilloscope
c.) Moving iron voltmeter
d.) Digital multimeter
6. Amplifier of class B has high theoretical efficiency of 78.5 percent because-
a.) It is biased almost to saturation
b.)Its quiescent current is low
c.)It’s output is an exact replica of it’s input
d.)It is biased well below cut off
7. Export PS1 results in(PS1 pwd)
a) primary prompt being your current directory
b) primary prompt and secondary prompts being the current directory
c) primary prompt prompt being your home directory
d) primary prompt and secondary prompts being the home directory
e) None of the above.
8. If you type in the command nohup sort employees > list 2 > error out & and log off ,the next time you log in, the output will be
a) in a file called list and the error will de typed in a file error out
b) there will be no file called list or error out
c) error will be logged in a file called list and o/p will be in error out
d) you will not be allowed to log in
e) none of the above
9. f x,y,z are the marbles initially with A,B,C respectively.
Then the number of marbles B have at the end
(a) 2(x-y-z)
(b) 4(x-y-z)
(c) 2(3y-x-z)
(d) x + y-z
Ans. (c)
10. If the total number of marbles are 72, then the number of marbles with A at the starting
(a) 20
(b) 30
(c) 32
(d) 39
Ans. (d)
11. If a car starts from A towards B with some velocity. Due to some problem in the engine after traveling 30km, the car goes with 4/5 th of its actual velocity
The car reaches B 45 min later to the actual time. If the car engine fails after traveling 45km, the car reaches the destination B 36min late to the actual time What is the initial velocity of car and what is the distance between A and B in km
Ans. 20 & 130.
12. A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for traveling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money.
13. The ratio of two specific heats of air is equal to. = 1.41
14. A perfect gas at 270C is heated at constant pressure till its volume is double. The final temperature is = 3270C
15. An engine operates between temperature of 9000K and T2 and another engine between T2 and 8000K. For both to do equal work, value of T2 will be. = 6500K
16. Internal energy of a substance depends on = Temperature
17. Work done in compressing 1kg of gas adiabatically from p1,V1,T1 to p2, V2, T2 is equal to = Cv(T2-T1)
18. Given following sequence, find the next term in the series:
(i) 0, 2, 4, 6, 8, 12, 12, 20, 16, ____ Ans: 12
(ii) 3, 6, 13, 26, 33, 66, ___ Ans: 53
19. Three customers want haircut and a shave. In a saloon, two barbers operate at same speed. They take quarter of an hour for the haircut and 5 mins for the shave. How quickly can they finish the haircut and shave of these three customers?
Ans: 30 minutes
20. A shopkeeper likes to arrange and rearrange his collection of stamps. He arranges them sometimes in pair, sometimes in bundle of three, sometimes in bundle of fours, occasionally in bundle of fives and sixes. Every time he's left with one stamp in hand after arrangement in bundles. But if he arranges in the bundle of seven, he's not left with any stamp. How many stamps does a shopkeeper have?
Ans: 301
a.) increase the gain of the system
b). increase the bandwidth of the system
c.) reduce the size of the main reflector
d.) allow the feed to be placed at a convenient point.
2 In most microwave communication link rain drop attenuation is caused due to-
a.) scattering of microwaves by water drops of specific size.
b) scattering of microwaves by a collection of droplets acing as a single body.
c.) absorption of microwaves by water and consequent heating of the liquid
d.) absorption of the microwaves by water vapor in the atmosphere.
3. When a (75 – j40)W load is connected to a coaxial line of Z0 = 75 W at 6MHz then the load matching on the line can be accomplished by connecting-
a.) A short – circuited stub at the load
b.)An inductance at the load
c. )A short circuited stub at a specific distance from the load
d.)none of the above
4. As compared to analog multimeters, digital Multimeters's are –
a.) less accurate
b.) more accurate
c.) equally accurate
d.) none.
5. When a signal of 10 mV at 75 MHz is to be measured then which of the following instruments can be used –
a.) VTVM
b.) Cathode ray oscilloscope
c.) Moving iron voltmeter
d.) Digital multimeter
6. Amplifier of class B has high theoretical efficiency of 78.5 percent because-
a.) It is biased almost to saturation
b.)Its quiescent current is low
c.)It’s output is an exact replica of it’s input
d.)It is biased well below cut off
7. Export PS1 results in(PS1 pwd)
a) primary prompt being your current directory
b) primary prompt and secondary prompts being the current directory
c) primary prompt prompt being your home directory
d) primary prompt and secondary prompts being the home directory
e) None of the above.
8. If you type in the command nohup sort employees > list 2 > error out & and log off ,the next time you log in, the output will be
a) in a file called list and the error will de typed in a file error out
b) there will be no file called list or error out
c) error will be logged in a file called list and o/p will be in error out
d) you will not be allowed to log in
e) none of the above
9. f x,y,z are the marbles initially with A,B,C respectively.
Then the number of marbles B have at the end
(a) 2(x-y-z)
(b) 4(x-y-z)
(c) 2(3y-x-z)
(d) x + y-z
Ans. (c)
10. If the total number of marbles are 72, then the number of marbles with A at the starting
(a) 20
(b) 30
(c) 32
(d) 39
Ans. (d)
11. If a car starts from A towards B with some velocity. Due to some problem in the engine after traveling 30km, the car goes with 4/5 th of its actual velocity
The car reaches B 45 min later to the actual time. If the car engine fails after traveling 45km, the car reaches the destination B 36min late to the actual time What is the initial velocity of car and what is the distance between A and B in km
Ans. 20 & 130.
12. A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for traveling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money.
13. The ratio of two specific heats of air is equal to. = 1.41
14. A perfect gas at 270C is heated at constant pressure till its volume is double. The final temperature is = 3270C
15. An engine operates between temperature of 9000K and T2 and another engine between T2 and 8000K. For both to do equal work, value of T2 will be. = 6500K
16. Internal energy of a substance depends on = Temperature
17. Work done in compressing 1kg of gas adiabatically from p1,V1,T1 to p2, V2, T2 is equal to = Cv(T2-T1)
18. Given following sequence, find the next term in the series:
(i) 0, 2, 4, 6, 8, 12, 12, 20, 16, ____ Ans: 12
(ii) 3, 6, 13, 26, 33, 66, ___ Ans: 53
19. Three customers want haircut and a shave. In a saloon, two barbers operate at same speed. They take quarter of an hour for the haircut and 5 mins for the shave. How quickly can they finish the haircut and shave of these three customers?
Ans: 30 minutes
20. A shopkeeper likes to arrange and rearrange his collection of stamps. He arranges them sometimes in pair, sometimes in bundle of three, sometimes in bundle of fours, occasionally in bundle of fives and sixes. Every time he's left with one stamp in hand after arrangement in bundles. But if he arranges in the bundle of seven, he's not left with any stamp. How many stamps does a shopkeeper have?
Ans: 301
HPCL MUMBAI Solved Paper 2011
1. X varies inversely as square of y. Given that y = 2 for x = 1. The value of x for y = 6 will be equal to
A) 3 B) 9 C) 1/3 D) 1/9
Ans : D
2. If 10% of x = 20% of y, then x : y is equal to
A) 1 : 2 B) 2 : 1 C) 5 : 1 D) 10 : 1
Ans : B
3. A starts business with Rs.3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B's contribution in the Capital ?
A) Rs. 7500 B) Rs. 8000 C) Rs. 8500 D) Rs. 9000
Ans : D
4. Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages ?
A) 7 hours 30 minutes B) 8 hours C) 8 hours 15 minutes D) 8 hours 25 minutes
Ans : C
5. A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 days. Who among these will take the least time if put to do it alone?
A) 80 days B) 100 days C) 120 days D) 150 days
Ans : C
6. Was Avinash early, on time or late for work?
(I) He thought his watch was 10 minutes fast
(II) Actually his watch was 5 minutes slow
Ans. (D)
7. What is the value of A if A is an integer?
(I) A4 = 1
(II) A3 + 1 = 0
Ans. (B)
8. A person travels 12 km in the southward direction and then travels 5km to the right and then travels 15km toward the right and
finally travels 5km towards the east, how far is he from his starting place?
(a) 5.5 kms
(b) 3 km
(c) 13 km
(d) 6.4 km
Ans. (b)
9. X's father's wife's father's granddaughter uncle will be related to X as
(a) Son
(b) Nephew
(c) Uncle
(d) Grandfather
Ans. (c)
10. Find the next number in the series 1, 3 ,7 ,13 ,21 ,31
(a) 43
(b) 33
(c) 41
(d) 45
Ans. (a)
11. If in a certain code "RANGE" is coded as 12345 and "RANDOM" is coded as 123678. Then the code for the word
"MANGO" would be
(a) 82357
(b) 89343
(c) 84629
(d) 82347
Ans. (d)
12. In a square, all the mid points are joined. The inner square is shaded. If the area of the square is A, what is the area of the shaded area?
13. Two questions on basic angles i.e given a circle, a few chords or diameter is drawn etc.
14. If the following statements are given
@(a,b)= (a+b)/2
/(a,b)= a/b
*(a,b)= ab
If a=1, b=2 then find
i) /(a,(@(a,b),*(a,b)))
ii) */(a,@(*(a,b)))
15. If the following statements are given
(x#y) = x + y- xy
(x*y) = (x + y)/2
i) Find the values of x, y will satisfy this equation (x#y)#(x*y) < (x#y)
ii) Find the values of x, y will satisfy this equation (a*b)#(b*c)< (a#b)*(b*c)
16. Export PS1 results in(PS1 pwd)
a) primary prompt being your current directory
b) primary prompt and secondary prompts being the current directory
c) primary prompt prompt being your home directory
d) primary prompt and secondary prompts being the home directory
e) None of the above.
17. If you type in the command nohup sort employees > list 2 > error out & and log off ,the next time you log in, the output will be
a) in a file called list and the error will de typed in a file error out
b) there will be no file called list or error out
c) error will be logged in a file called list and o/p will be in error out
d) you will not be allowed to log in
e) none of the above
18. f x,y,z are the marbles initially with A,B,C respectively.
Then the number of marbles B have at the end
(a) 2(x-y-z)
(b) 4(x-y-z)
(c) 2(3y-x-z)
(d) x + y-z
Ans. (c)
19. If the total number of marbles are 72, then the number of marbles with A at the starting
(a) 20
(b) 30
(c) 32
(d) 39
Ans. (d)
20. If a car starts from A towards B with some velocity. Due to some problem in the engine after traveling 30km, the car goes with 4/5 th of its actual velocity
The car reaches B 45 min later to the actual time. If the car engine fails after traveling 45km, the car reaches the destination B 36min late to the actual time What is the initial velocity of car and what is the distance between A and B in km
Ans. 20 & 130.
ISRO ENGINEERS TECHNICAL QUESTIONS
1.The minimum number of edges in a connected cyclic graph on n vertices is
a) n-1
b) n
c) n+1
d) none of these
2.A full binary tree with n non leaf nodes contains
a) n nodes
b) log n nodes
c)2n-1 nodes
d)2n nodes
3.The time complexity of shell sort a) O(n)
b) O(log n)
c) O(n 1.2 )
d)O(n2)
4.The time taken to insert an element after an element pointed by some pointer
a) O(1)
b) O(log n)
c) O(n)
d) O(nlogn)
5. what is the name given to the first generation computer?
a) Binary language
b)Machine language
c)Assembly language
6.The root directory of a disk should be placed
a) at a fixed address in main memory
b) at a fixed location on disk
c) anywhere on disk.
7.A top down parser generates
a) right most derivation
b) left most derivation
c) right most derivation in reverse
d) left most derivation in reverse
8.what is the name of the OS that reads and reacts in terms of actual time?
a)batch system
b)time sharing
c)real time
9.FDDI is a
a)ring network
b)star network
c)mesh network
10.Computer memory consists of
a)ROM
b)PROM
c)RAM
d)all the above
ISRO ENGINEERS 2011 EXM QUESTIONS
1. The root directory of disk should be placed at_____
—>at a fixed location on the system disk.
2. DNS is basically used to ____
—–>i wrote –to have a hierarchical structure.
4. About TCP and UDP
5. TCP’s which layer is there for the OSI’s first three layers.
6. Multiprocessing models have—
a)symmetric b)asymmetric models c)none of the above d) both
7. BCDhave binary nos in
a)bis b) bytes c)nibble
8. Top-down parser….
a) Leftmost derivation
b) Rightmost derivation
c) Leftmost derivation in reverse
D) Rightmost derivation in reverse
9. Loop which avoids check at every iteration
a) Loop controlling b) loop jamming
10. One tree was given and some ex-precisions were there and we have to
find the correct postfix expression
11. Abt logic gates
12. Worst case of Shell sort
13. Sine wave can be split into
a) Set of sine waves
b) Set of sine waves with phase zero
14. Full binary tree with n vertices has how many leaf nodes
something like this…
15. Complete graph with n vertices and something
16. In a cyclic graph with n vertices how many minimum edges
a)n b)n/2…
ISRO ENGINEERS 2006 EXM QUESTIONS
1. If sampling frequency doubles then
a) Quantization noise decreases
b) Quantization density decreases
c) Quantization noise increases
d) Quantization density increases
2. Two signals of 2GHz and 4GHz are frequency modulated on same carrier 10
GHz. Find the ratio of frequency deviation if band widths of both are equal.
a ) 1:2 b)2:1 c) 1:1 d) 1:4
3. Gray code of 111 is
4. 3X512+7X64+5X8+3 then value in binary form contains _______ number of 1?s.
a) 7 b) 6 c) 9 d) none
5. The 2?s compliment of decimal number 19 in 8-bit system is
6) The high gain codes are
a) Turbo codes b) BCH codes c) R-S codes
7) BCH codes are of the type________
a) Convolutional type b) c)
8) Time constant of LC circuit is
a) L/R b) L/R2 c) RL
9) If R is doubled and C is halved then frequency of series RLC circuit is
10) The solution for the equation (D2+4) y=sin2x
a) Quantization noise decreases
b) Quantization density decreases
c) Quantization noise increases
d) Quantization density increases
2. Two signals of 2GHz and 4GHz are frequency modulated on same carrier 10
GHz. Find the ratio of frequency deviation if band widths of both are equal.
a ) 1:2 b)2:1 c) 1:1 d) 1:4
3. Gray code of 111 is
4. 3X512+7X64+5X8+3 then value in binary form contains _______ number of 1?s.
a) 7 b) 6 c) 9 d) none
5. The 2?s compliment of decimal number 19 in 8-bit system is
6) The high gain codes are
a) Turbo codes b) BCH codes c) R-S codes
7) BCH codes are of the type________
a) Convolutional type b) c)
8) Time constant of LC circuit is
a) L/R b) L/R2 c) RL
9) If R is doubled and C is halved then frequency of series RLC circuit is
10) The solution for the equation (D2+4) y=sin2x
BSNL JTO EXAM 2011 SOLVED QUESTIONS
1. Modern capacitors which have high capacitance in small size use a dielectric of
(A) paper (B) rubber (C) ceramic (D) Mylar
2. The Maximum spectral response of the germanium and silicon is in the
(A) infrared region (B) ultraviolet region (C) visible region (D) x-ray region
3. For an insulating material, dielectric strength and dielectric loss should be respectively
(A) high and high (B) low and high (C) high and low (D) low and low.
4. In a distortion factor meter, the filter at the front end is used suppress
(A) odd harmonics (B) even harmonics (C) fundamental component (D) dc component
5. The coefficient of coupling between two air core coils depends on
(A) mutual inductance between two coils only (B) self inductances of the two coils only
(C) mutual inductance and self inductances of the two coils (D) none
6. For a parallel plate capacitor which is being charged out of the following the incorrect statement is
(A) Energy stored in the capacitor does not enter it through the connecting wire through the space around the wires and plates of capacitor.
(B) Rate at which energy flows into this volume is equal to the integration of the poynting vector over the boundary of the volume between the plates.
(C) The poynting vector points everywhere radially outward of the volume between plates.
(D) The poynting vector points everywhere radially in to the volume between the plates.
7. The presence of alkali oxides in alumino silicate ceramics is likely to result in dielectric breakdown due to
(A) Polarization (B) Conductivity (C) Structural homogeneties (D) Ionization
8. Which of the following will serve as a donor impurity in silion
(A) Boron (B) Indium (C) Germanium (D) Antimony
9. Electrical contact materials used in switches, brushes and relays must possess
(A) high thermal conductivity and high melting point (B) Low thermal conductivity and low melting point (C) High thermal conductivity and low melting point (D) Low thermal conductivity and high melting point.
10. An SCR can only be turned off via it’s
(A) cathode (B) anode (C) gates (D) none
11. Gold is often diffused into silicon PN junction devices to
(A) increase the recombination rate (B) reduce the recombination rate
(C) make silicon a direct gap semiconductor (D) make silicon semi-metal
12 With n nodes and b branches a network will have
(A) (b+n) links (B) b – n +1 links (C) b -n-1 links (D) b + n + 1 links
13. When a network has 10 nodes and 17 branches in all then the number of node pair voltages would be
(A) 7 (B) 9 (C) 10 (D) 45
14. In any atom the potential energy of an orbiting electron is
(A) always positive (B) always negative
(C) sometime positive, sometime negative (D) numerically less then its kinetic energy.
15. A delition MOSFET differs from a JFET in the sense that it has no
(A) channel (B) gate (C) P-N junctions (D) substrate
NTPC Diploma Trainee Exam Pattern
National Thermal Power Corporation conducts the exam for the recruitment of Diploma Trainees in different fields. The pattern of trainee exam in this post will help you to prepare systematically for NTPC recruitment exam.
NTPC Diploma Trainee written test pattern:
NTPC written test consists of a two hour paper with objective type questions. The paper has two parts: Technical & Aptitude. While the questions of Aptitude test is common, questions of the Technical test would depend on which among the four disciplines (Electrical, Mechanical, Civil, C&I) you belong to.
Part-I (Technical) of NTPC Written test paper consists of 68 & Part-II (Aptitude) consists of 32 objective type questions. Thus there are 100 total questions to be answered in 120 minutes.
Note: There is negative marking: 1/4th mark will be deducted for each wrong answer. So be careful while choosing the answer.
For Aptitude test, the questions asked are of type Test of reasoning, data interpretation.
Saturday, April 16, 2011
DFCC RECRUITMENT
Dedicated Freight Corridor Corporation (DFCC) New Delhi
Dedicated Freight Corridor Corporation (DFCC) invites application from Indian citizens for the recruitment of Assistant Manager (Civil & Sig. & Telecommunication) posts April 2011.
Type of Sarkari Naukri:
- Assistant Manager (Civil) : 15 Posts
- Assistant Manager (Sig. & Telecommunication) : 15 Posts
Academic Qualification: Engineering degree in Civil / Electronics & Communication
Location of Govt Jobs: New Delhi
Last Date of apply for these posts is 15 May 2011
How to Apply : Posts applications in the prescribed format should be reach to the Dedicated Freight Corridor Corporation of India Ltd, 5th Floor, Pragati Maidan, Metro Station Building Complex, New Delhi – 110001
You can visit here Advertisement for more information on posts and Application form.
Tuesday, April 12, 2011
Vizag steel plant Management Trainee (MT)Exam 2009 paper
1 An ice block submerged in the water, if the ice melts level of water (increase,decrease,remains same,none)
2 Simply supported beam with w point load at the middle, max. bending moment?(wl/4)
3 Simply supported beam with UDL ,max.deflection (wl4/384EI)
4 Cantilevel beam point load at tip,max.bending momemt comes at (end)
5 When bearing life L10 represents (bearings 10%survive,bearings 10% fails, none )
6 For welding high carbon steels which type of flame is used (oxidizing,carburizing,neutral,none)
7. Arrange the following cutting tools in decreasing order of machining hardness…Ceramics
8. When P1 and P2 are the loads acting on bearings with life L1 and L2 then L1/L2=?L1/L2={P2/P1}10/3
9.Product simplification does not mean??Product characterization
10 Which of the following process has the most scope in manufacturing? CAD/CAM, CAM, CIM, All the above
.
11. Concurrent engineering means? (Manufacturing, designing, both,none)
12. Which manufacturing process yields higher output and increases worker productivity-(process layout,line+process,functional layout)
13. 18-4-1 represents-, Tungsten-Cr-Vn
14 For which material is negative allowance provided-(Graphite,steel,bronze,cast iron)
15. What is the recrystallisation temperature of tin- (60,300,1000,none)
16. What is the purpose of borax in soldering-
17. Top gates are provided in which type of casting-(Shallow casting,simple,complex,none)18. Which statement is true regarding simple gear trains-(i/p and o/p shafts r fixed, each shaft has 2 gears, i/p & o/p shafts r moving)
19. What is the purpose of normalizing- (Refining of grain structure)
20. As the grain size is decreased-(Hardness increases,corrosion resistance decreases,both)
21. Isothermal gas is filled in a vessel at a pressure P and temperature T then considering the compressible forces as the height increases pressure ??(linearly increases linearly decreases exponentially increase )
22. A bottle is filled with water and air and is tied to a string and is rotated in horizontal direction. Then in which direction will air bubble travel?(bottom,neck,uniformly spread)
23. A empty bottle(in vaccum) filled with a gas at temp T and press P when the pressure of bottle reaches P temperature of the gas is _? (T,T/K,TK)
24. Bearing somerfield number _ with load on bearing? (increases,decreases,no change)
25. Critical radius for a sphere is-(2k/h)
26. Critical radius exist for_ (spherical,cylindrical,both,slab)
27. Convectional resistance/internal resistance is called (biot number)
28. Nusselt no. is? (hl/k)
29. EOQ=?
30 Which statement is true regarding critical path method? (i only one critical path exists for a network, more than one with same duration,)
31. Shipment cost,inspection cost,storage cost comes under_ (carrying cost ,holding cost,)
32. Ischronous governers sensitivity is- (zero,infinite)
33. self energized brakes are-(friction moment acts in the direction of application of force,opposite to the direction of force, does not need a force to act ,)
34 The ratio of heat capacities for evaporator and condenser is_ (Zero,infinity)
35. when steam and air mixture with partial pressure 0.06 and 0.07 enters a condenser what is the condenser pressure? (0.06,0.07,0.53,0.03)
36. In pulverized burning of coal heat transfer from boiler to water occurs through_( predominant radiation, convection, conduction, conduction+convection)
37. Rankine cycle efficiency for same parameters increases mostly with_(reheat, regeneration, super heating )
38. Ericson cycle with all reversible processes assume_(carnot cycle,stirling,brayton)
39. Air delivery tank at outlet of reciprocating compressor is provided for_ (provide constant pressure, avoid cavitation, )
40. High speed centrifugal pump has _? (vanes faces in forward direction side,backward,radial vanes)
41. Thermal efficiency in decreasing order_? (Otto cycle>dual cycle>diesel cycle)
42. When a 1000 K body comes in contact with atmosphere at 300K a loss of 9000 KJ heat is transferred. The net available energy transferred is_43. When entropy of a system increases_? (unavailable energy increases )
44. Rolling is a process widely used for_?
(I section,tubes)
45. Tool nomenclature_?
46. In francis turbine movement of steam?
47. For low power consumption _? (rake angle should be increased / decreased, nose angle increased/ decreased)
47. Continuous chips occur in_? (High speeds,low speeds,both,none)
48. Primary forces in a reciprocating engine_? (fully balanced, partially balanced, completely unbalanced, none)
49. In proximate analysis pyrogallol is used for analysis of which element_? (nitrogen,oxygen)
50. Sulphur content in fuel greatly affects_? (corrosion)
51. Heat transfer through radiation can be increased by_?
(decreasing emissivity and increases temperature of hot body)
52. which theory of failure clearly explains the failure in case of ductile material? (Maximun shear stress theory or Guests or trescas theory)
53. When a material is subjected to continuous cycles which limit is being verified? (Endurance limit)
54. where is stress concentration maximum? (notches, stress reducing throughcuts)
55. Power transmitted through a belt drive_? P(T2-T1)
56. According to Eulers theory crippling or buckling load is (Wcr = CÏ€2EI/l2)
57. During sensible heating, specific humidity_? (remains constant)
58. COP of a refrigerator is _? (greater than 1 )
59. The maximum temperature in a refrigeration cycle is_? (less than/greater than/equal to critical temperature)60. The pressure at the throat of the nozzle_? (maximum,min)
61. for a statically determinate set of forces for equilibrium_? (∑ f(X),f(Y),f(Z)=0,∑M=0)
62. For a statically determinate set of forces- (there r as many equations as the no. of unknowns)63. 1-2-3 analysis is used for_? (1.break even analysis, ??)
64. A problem on mean time of service something like a salesman has a rating of 120. considering 10% allowance time calculate the time required to serve 120???
65. A problem n determining time in a queue??
66. Energy equation for a laminar flow is _? (Uniform and steady ,non uniform and unsteady)67. Undercuts in welding occurs due to_? (low welding current,high welding current)
68. Work holding equipment in shearing??
69. At the centre of a nozzle _? (Mach no<1>=1;=1)
BSNL GE JTO Exam Paper 2008 ( Chennai)
1. Of the following bridges the one which can be used for the measurement of dielectric loss of a capacitor is –
a.) Schering bridge
b) Heaviside campbell equal ratio voltage
c) Owen bridge
d) Anderson bridge
2. LBDT is uses as a –
a). Displacement transducer
b) Pressure transducer
c) Temperature
d.) Any of the above
3. Polarization is a measure of -
a.) Dielectric constant per unit volume.
b.)Voltage gradient to produce electrical breakdown
c.) Product of charge & distance
d.)Excess charge density
4. Compared to the inductive type of transducer, capacitive transducer is superior for the measurement of displacement because of -
a.)Absence of non-linearity
b.) High frequency response
c.) Small size
d.) High accuracy
5. An incremental model of a solid state device is one which represents the –
a.) ac property of the device at the desired operating point
b.dc property of the device at all operating points
c.) Complete ac & dc behaviour of the device at all operating points
d.)ac property of the device at all operating points.
6. The ac resistance of a forward biased p-n junction diode operating at a bias voltage 'V' & carrying current ‘I’ is –
a. )Zero
b. )a constant value independent of Vand I
c.)
d.)
7. A meter is shielded with a soft iron to –
a. )Prevent damage from rough use
b.) Keep moisture out of movement
c. )Protect meter movement from stray magnetic fields
d.) Achieve all of the above
8. A capacitor that has been connected across a battery for comparatively long time becomes–
a. )Charged
b.) Discharged
c.) Short - circuited
d.) Defective
9. The charge on the plates of a capacitor is given by the expression –
a.) Q = VI
b.) Q = IR
c.) Q = CV
d.) Q = IC
10. Silicon steel used for electrical purposes has silicon percentage of –
a. )0.5
b.) 2.5
c.) 3.4
d). None
11. The feature of VTM is its –
a. )Low input impedance
b. )Low power consumbtion
c. )The ability to measure wider ranges of voltage & resistances
d). None
12. In an N-type semiconductor, the position of the fermi level –
a. )Is lower than the centre of the energy gap
b.) Is at the centre of the energy gap
c.)Is higher than the centre of the energy gap
d. )Can be anywhere depending upon the doping concentration
13. A JFET can operate in –
a.) depletion & enhancement model
b. )depletion mode only
c. )enhancement mode only
d.) neither enhancement nor depletion mode
14. Consider the following semiconductor diodes –
a. )Germanium diode
b.)Silicon diode
c.) Tunnel diode
d.) Schottky diode
15. A diode with a PIV of 50V is likely to break down when rectifying 50v ac supply because –
a.) it is made of defective material
b.) it is incorrectly connected to the supply
c.) peak value of ac supply exceeds the PIV value
d. ac supply is of extremely high frequency.
16. The set of transistor characteristics that enables a to be determined directly from the slope is –
a.) CE transfer characteristics
b. CE output characteristics
c.) CB transfer characteristics
d.) CB input characteristics
17. For an N-channel JFET, the drain voltage has to be –
a.) positive with respect to the source
b.) negative with respect to the source
c.) uncharged with respect to the source
d.)none
18. The SCR is often employed as a –
a. )Source-controlled switch
b. )Drain-controlled switch
c.) Gate-controlled switch
d) None
19. An oscilloscope has an input impedance consisting of 1MW & 20pF in parallel. A high impedance probe connected to the input of this oscilloscope has a 10MW series resistance, this 10MW resistance –
a.) Need not be shunted
b.) Should be shunted by a 2pF capacitor
c.) Should be shunted by a 20pF capacitor
d. Should be shunted by a 200pF capacitor
20. Compared to silicon, gallium arsenide (GaAs) has –
a. )Easier to grow crystals since the vapour pressure of arsenic is high
b. )Higher optolectronic conversion efficiency
c.) Both a & b
d). None
22. When all the resistances in the circuit are of one ohm each, then the equivalent resistance across the points A & B will be –
a.)1W
b.) 0.5W
c.) 2W
d). 1.5W
23. Of the following periodic waveforms the one having only odd harmonics of sinusoidal waveform is-
a. )1 & 2
b.) 1 & 3
c. )1 & 4
d. )2 & 4
28. When in a two terminal network, the open circuit voltage measured at the given terminals by an electronic voltmeter is 100V & a short circuit current measured at the same terminals by an ammeter of negligible resistance is 5A then if a resistor of 80W is connected at the same terminal, then the current in the load resistor will be –
a. 1A
b.) 1.25A
c). 6A
d. 6.25A
31. The electric potential due to an electric dipole of length L at point distance r away from it will be doubled if the -
a. ) Length L of the dipole is doubled
b. ) r is doubled
c. ) r is halved
d ) L is halved
32. When a particular mode is excited in a waveguide there appears an extra electric component in the direction of propogation . The resulting mode is
a. ) Longitudinal electric
b. ) Transverse electromagnetic
c. ) Transverse magnetic
d ). Transverse electric
33. When for a transmission line the open circuit & short circuit impedance are 20W & 5 W respectively then the characteristic impedance of the line is -
a. ) 100 Ohms
b ). 50 Ohms
c. ) 25 Ohms
d. ) 10 Ohms
34. In an ideal transmission line with matched load, the voltage standing wave ratio & reflection coefficient are respectively -
a. ) 1 & 1
b ). infinity & 1
c ) infinity & 0
d. 1 & 0
35. When an electric charge of 100 coulombs is enclosed in sphere of radius 100 m then the electric displacement density ( in coulomb / m2) D is –
a. ) 0.0833
b ). 0.833
c. ) 1.666
d. ) 10
36. For the dominant mode in a rectangular wavelength with breadth 10 cm, the guide wavelength for a signal of 2.5 GHz will be -
a. ) 12 cm
b. ) 15 cm
c. ) 18 cm
d. ) 20 cm
37. When the phase velocity of an electromagnetic waves depends on frequency in any medium, the phenomenon is called-
a. ) Scattering
b. )Polarization
c. ) Absorption
d. ) Dispersion
38. Antennas commonly used for microwave links are -
a. ) Loop antenna
b. ) Log-periodic antennas
c. ) Paraboloidal dishes
d ). Rhombic antennas
39. One of the following instrument which may be used to measure the optical activity of compounds is –
a. )Infrared spectrometer
b. ) Atomic absorption spectrometer
c. ) Polarimeter
d. ) Flouroscope
40. Schering bridge measures –
a. )Capacitance dielectric loss
b. ) Inductance
c. )Resistance
d. ) Mutual inductance
41.When a square wave is fed to an RC circuit, then –
a. ) voltage across R is square & across C is not square
b. ) voltage across C is not square & across R is not square
c. ) voltage across both R & C are square
d. ) voltage across both R & C are not square
42. The time constant of the RC circuit is –
a. ) less than the time period of the input square wave.
b ). much larger than the time period of the input square wave.
c. equal to the time period of the input square wave.
d ). none
43. Harmonic distortion for each frequency can be obtained by harmonic analyser of the –
a. )heterodyne type
b. ) tuned circuit type
c. ) fundamental suppression type`
d. ) bridge circuit type.
44. A three phase wattmeter requires –
a ). only two current coils & two pressure coils
b. )only one current coil & two pressure coil
c. ) only two current coils & one pressure coil
d. ) only current coil
45. A low pass filter circuit is basically –
a. ) a differentiating circuit with low time constant
b. ) a differentiating circuit with large time constant.
c. ) an integrating circuit with low time constant.
d. )an integrating circuit with large time constant.
46. If the differential pressure in restriction type flow measuring devices is then the flow will be proportional to –
47. When a system is represented by the transfer function then the dc gain of this system is –
a.) 1
b.) 2
c.) 5
d.) 10
48. Silicon based semiconductor device called thyristor was first fabricated by –
a). Jell laboratories in U.S.A
b). Maxwell laboratories in U.S.A
c.) Bell laboratories in U.S.A
d). GEC laboratories in U.S.A
49. A semiconductor based temperature transducer has a temperature coefficient of –2500mV/0C. This transducer is indeed a –
a.)Thermistor
b.) Forward biased pn junction diode
c. )Reverse biased pn junction diode
d.) FET
BSNL JTO Question Paper -- Solutions SOon! Download Free
50. Which of the followings pairs of Telemetry situations & Modulation techniques & conditions is correctly matched-
a. )Pulse amplitude modulation Low amplitude signals
b. )Pulse position modulation For short distance when power is enough
c.) Pulse width modulation Power to be spent in telemetry is required to be low
d.) Pulse code modulation. Minimisation of interference effects.
51. The SCR ratings di/dt in A/m sec & dv/dt in n/m sec, may vary, respectively between-
a.) 20 to 500, 10 to 100
b. )both 20 to 500
c.) both 10 to 100
d.) 50 to 300, 20 to 500
52. Match the given controlled rectifiers with 50 Hz supply
a. )1 phase full converter with source inductance
b. )3 phase full converter
c.)3 phase semiconductor
d. )3 phase halls wave converter
53. For natural or forced commutation the cyclo converters (CCs) requires as under.
a) natural commutation in both step up & step down CCs
b.) forced commutation in both step up & step down CCs
c.) forced commutation in step up CCs
d). forced commutation in step down CCs
54. The peak inverse voltage in ac to dc converter system is highest in-
a). single phase full wave mid point converter
b). single phase full converter
c) 3 phase bridge converter
d). 3 phase half wave converter.
55. A single phase full converter feeds power to RLE load with R = 6 W L = 6 MH & E = 60 V. The ac source voltage is 230 V, 50 Hz, For continuous conduction, the average value of load current for a firing angle delay of 50 is
a.)12.181 A
b). 14.81 A
c). 16.76 A
d.) 32.40 A
57. What is 215 complement of 00011100-
a.) 11100011
b.) 10001100
c.) 11100100
d.) 10000111
58. In C programming a expression contains relational operators, assignment operators & arithmetic operators if parentheses is absent then execution follows
a.) assignment, relational, arithmatic
b.) arithmatic, relational, assignment
c.) relational, arithmatic, assignment
d.) assignment, arithmatic, relational
59. In semiconductor memory information stored in form-
a.) binary
b.) hexadecimal
c.) octal
d.) ASCII
60. i\p to Not gate gives o/p as-
a ) inversion of some bits
b.) 2’s complement of i\p
c.) 1’s complement of i\p
d.) o/p is some as i\p
61. A negative logic means-
a .)logic 0 & 1 are represented by a +ve voltage respective
b). logic 0 & 1 are presented as –ve & +ve voltage
c. )logic 0 voltage is higher than logic 1 voltage level
d.) logic 0 voltage is lower than logic 1 voltage level
64.A 20,000 Ohms per volt meter will deflect full-scale with a current of -
a.) 50 mA
b.) 50 mA
c.) 100 mA
d.) 1000 mA
65. A plate modulated class –CRF power amplifier produces 100 KW of radiated power at 100 % modulation. The modulating audio amplifier supplies approximately -------- kW of this power-
a.)50
b).33
c).22
d).11
66..An amplifier without feedback has a distortion of 15 % & gain of 40. When 10% negative feedback is applied the distortion will become-
a.) 50 %
b). -45 %
c). 3%
d). -5%
67. MODEM implies-
a.)Modulator at transmitting side & ditector at the receiving side
b.)Which deals with analog signals & shows digital information
c.)Analog to digital at transmitting side & digital to analog at a receiving side
d).A device which deals with digital signals only
68. Twisted ring & ring counters are examples of –
a. )Synchronous counters
b.) Asynchronous counters
c.) both a & b
d.) None of the above
69. Specify Non characteristic flip flop in the following –
a.) The outputs are complement of each other
b.) The flip flop has two input signals
c.) The flip flop has two output signals
d). The flip flop is a bistable devise with only two stable states
70. The voltage obtained when digital input is 001 is a 3 bit R-2R ladder DIA converter is-
a.) VR/22
b.) VR/21
c.) VR/23
d.) none of the above
71. Identify NOT an octal number-
a.) 19
b). 15
c.) 77
d.) 101
72. The set of binary digits 01000100 represent's-
a.) number 6810 in a pure binary computer
b.) number 44 in 8421 BCD code
c) Both a & b
d.) None of the above
73. The system matrix of a continuous time system, described in the state variable form is –
The system is stable for all values of x & y satisfying –
a.)x <> 1/2 , y >0
d.) x < 0 , y < 1/2
74. The break away & break in point in the root locus for open loop transfer function G(S) H(S) = are located respectively at – a). –2 & -1 b). –2.47 & –3.77 c.) –4.27 & –7.73 d.) –7.73 & –4.27
77. The overall transfer function in a second order is given by- Its resonant frequency is - a.) 2 b.) c). d.) 3
78. The detection of an AM waveform in an Envelope –
a.)One side band & full amplitude carrier are needed
b.) Both side bands & full amplitude carrier are needed
c). Only two side bands are needed
d). Upper side band & part of carriers are needed
79. Satellite used for intercontinental communication is known as –
a.) Comsat
b). Dom sat
c.) Mari sat
d). Intelsat
80. Mark out non submarine cable –
a. )TAT – 7
b.) INTELSAT V
c.) ATLANTIS
d. )CANTAT 2
81. The capacity of an analog communication channel with 4kHz bandwidth & 15 dB SNR is approximately-
a). 20,000 bps
b). 16,000 bps
c.) 10,000 bps
d.) 8,000 bps
82. The blind speed of an MTl radar can be avoided by changing the-
a.) Carrier frequency
b.) Pulse repetition frequency
c. )Antenna rotation rate
d.) Transmitted power
83. The output voltage in a feedback series regulator circuit is regulated by controlling the-
a.) Magnitude of the input voltage
b.) Gain of the feedback transistor
c.) Reference voltage
d.) Voltage drop across the series pass transistor
84. Indicate the signal not transmitted in colour TV-
a.) Y
b.) Q
c.) R
d.) I
85. As frequency of singal increases-
a.) Directivity increases & beam width increases
b.) Directivity & beam width decreases
c.) Directivity increases & beam width decreases
d.) Directivity decreases & beam width increases
86. The number of hardware interupts (which require an external signal to interrupt) present in on 8085 mP are
a). 1
b). 4
c.) 5
d.) 13
87. Highest priority interupt is-
a. )INTR
b. )RST 7.5
c. )RST 6.5
d. )TRAP
88. One instruction cycle means-
a. )Time require to execute set of instructions
b. )Time require to execute one instruction
c.) Time require to complete one operation of accessing memory, or I/o
d.) None of above
89. If the clock freq. is 5 mH3 how much time is required to execute on instruction of 18 T-states-
a. )3.6 msec.
b.) 36 m sec.
c.) 36 m sec.
d.) 36 sec.
90. In data transfer operation which flog get affected-
a. )zero flog
b. )carry flog
c. )sign flog.
d.) none
91. CMP instruction comes under group -
a. )Data transfer
b. )Brouching operations
c). Machine control operation
d.) logical operations
92. The logic operation-
a.) are performed in relation to content of Accemce lotor
b).can be performed derectly with content of the register.
c.)are performed without content of a
d.)none of above.
93. What happen when PUSH instruction executed -
a.) data retrieved from stock to register
b.) data from register saved on the stock.
c.) 16 bit address of instruction saved on stock.
d.) 16 bit address from stock retrieved
94. SIM stands for-
a.) serial interface memory
b.) set interrupt mosk
c.) set if minus
d.) set internal memory
95. Maximum clock frequency required to operate 8085-
a. )2 MHz
b.) 3 MHz
c) 6 MHz
d. )9 MHz
96. ASCII code is-
a). 7 bit
b). 8 bit
c.)16 bit
d.) 32 bit.
97. In memory mapped I/O address lines are-
a. ) 8
b.) 16
c.) 32
d.) 64
98. The parity bit adding technique is used for -
a. )Indexing
b. )Coding
c. )Error detection
d. )Controlling
99. A demultiplexer-
a. )has multiple i/p & single o/p
b.) has single i/p & multiple o/p
c.) has multiple i/p & multiple o/p
d.) has single i/p & single o/p
100. Subroutines are useful-
a. )to reduce storage requirements
b.) to increase programming speed & reduce storage
c.) most applications are same
d.) but increases expense
101. As daring goes with temerity same way clear-sighted with –
a. )Perspicacity
b.) Impulsiveness
c.)Energy
d. )Clemency
102. A man who visits his friend is a –
a. ) Host
b. ) Guest
c. ) Master
d.) Owner
103. Zealot is –
a. )beginner
b.) Patron
c.) fanatic
d.) Murderer
104 Give the plural of ‘Mouse’ –
a. )Mouse’s
b). Mice
c). Mouse
d). None
105. Find the part of speech of the underlined word – Shama & Radha were playing together.
a. )Preposition.
b. )Noun
c. )Conjunction.
d) Verb.
106. Which of the following is not one of the multiple names of ganesha?
a). Vinayaka
b). Lambodra
c.) Ekadanta
d.) Vighneshwara
e. )all of the above
107. If a man weighs 60 Kilograms on earth, how much will be his weight on the moon?
a. )50 kg
b. )40 kg
c. )20 kg
d. )10 kg
108. The only Indian star selected for waxing at the famous Madame Tussaud’s wax is-
a. )Salman Khan
b. )Amitabh Bachan
c. )ShahRukh Khan.
d. )Raj Kapoor
109 Rate of gowth of per capita income in India drops down to – percent in 2000-2001-.
a. )5.3 percent
b. )3.5 percent
c. )4.8 percent
d. )8.4 percent
110. Ascorbic acid is the chemical name of-
a. )Vitamin A
b. )Vitamin B
c. )Vitamin C
d.) Vitamin D
111. All India Muslim League was founded by-
a. )Nawab Slimullah Khan
b. )Sir Mohd Iqubal
c.) Sir syed Ahmed Khan
d.) Moulana Shaukat Ali
112. Red Blood corpuscles are formed in-
a. )Marrow
b.) Kidney
c). Liver
d). heart
113. The southern most tip of India is in-
a. )Lakshadweeep
b.) Kanya Kumari
c. )Andaman & Nicobar Islands
d. )Rameswaram
114. The first bowler in cricket history to take 500 test wickets is-
a.) Imran Khan
b). Courtney Walsh
c). Shane Warne
d.) Muttiah Murlidharan
115. President of the National Consumer Disputes Redress al Commission (NCDRC) is-
a.) Mr. D.C Wadhwa
b). Mr. A. P Wadhwa
c.) Mr. A. C Wadhwa
d.) Mr. D. P Wadhwa
116. C.V. Raman got Nobel Prize for-
a. )Themodynamics
b.) Quantum theory
c. )Optics & spectroscopy
d.) Nuclear Physics
117. First governor general of Bengal-
a). Lord Clive
b.) Lord warren Hastings
c. )Lord Lytton
d.) Lord Ripon
118. The slogan “Do or Die” is associated with-
a.) Subhash Chandra Bose
b.) Gandhigi
c.) Harijan
d.) Satyagraha
119. Champaran is in the state of-
a). Gujarat
b). Maharashtra
c.) Bihar
d). Madhya Pradesh
120. These tribes are found in central Asia-
a. )Garos
b. )Kirghiz
c.) Lushai
d). Santhals
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