CIVIL ENGINEERING MCQs

1. What is the area of influence line diagram for the reaction at the hinged end of a uniform propped cantilever beam of span L?
(a) L/8
(b) L/2
(c) L/4
(d) 3L/8
Ans. (c)

2. For a welded plate girder with vertical stiffeners, what is the maximum depth of web provisionable in design when the thickness
of the web plate is 5 mm?
(a) 425 mm
(b) 1000 mm
(c) 1250 mm
(d) 2000 mm
Ans. (b)

3. An ISMB 300 beam has modulus of section of 600 × 103 mm. Plates of 200 mm × 10 mm are added by welding them one on each
flange to have total depth of section 320 mm. What is the section modulus of the plated section?
(a) 462 × 103 mm
(b) 550 × 103 mm3
(c) 710 × 103 mm3
(d) 1220 × 103 mm3
Ans. (d)

4. A column bearing truss in an open industrial shed is 6 m height between its own base and the bottom of the truss. What is the
effective height of the column taken for calculation compressive strength?
(a) 4.8 m
(b) 6.0 m
(c) 7.2 m
(d) 9.0 m
Ans. (a)

5. Which one of the following values represents the maximum slenderness ratio of any connection member which normally acts as a
tie in a roof truss but can be subjected possible reversal of stresses from the action of wind or seismic force?
(a) 150
(b) 200
(c) 250
(d) 350
Ans. (d)


6. A steel plate is 300 mm wide and 10 mm thick. A rivet of nominal diameter of 16 mm is driven into it. What is the net sectional
area of the plate?
(a) 2600 mm2
(b) 2760 mm2
(c) 2830 mm2
(d) 2840 mm2
Ans. (c)


7. A cantilever steel beam of 3 m span carries a uniformly distributed load of 20 kN/m inclusive of self-weight. The beam comprises
of ISLB200 @ 198 N/rn, flange- 100 mm × 7.3 mm; web thickness - 5.4 mm; Ixx = 1696.6 cm4; Iyy = 115.4 cm4. What is the
maximum bending stress in the beam?
(a) 132.62 N/mm2
(b) 530.47 N/mm2
(c) 149.74 N/mm2
(d) 3899.48 N/mm2
Ans. (b)

8. A tension member consists of two angles placed back to back For which one of the following configurations, will the load
carrying capacity of the tension member be maximum?
(a) Gusset palte is in between the two angles and tacking rivets are provided
(b) Gusset plate is in between the two angles and no tacking rivets are provided
(c) Gusset plate is on one side of the two angles and tacking rivets are provided
(d) Gusset plate is on one side of the two angles and no tacking rivets are provided
Ans. (a)


9. In limit state design method, the moment of resistance for a balanced section using M20 grade concrete and HYSD steel of grade
Fe4 15 is given by Mu, tim = Kbd2, what is the value of ‘K’?
(a) 2.98
(b) 2.76
(c) 1.19
(d) 0.89
Ans. (b)

10. How is the deflection in RC beams controlled as per 1S456?
(a) By using large aspect ratio
(b) By using small modular ratio
(c) By controlling span/depth ratio
(d) By moderating water-cement ratio
Ans. (c)

11. At what stress does the first flexural crack appear in RCC beams made of M25’ grade concrete?
(a) 3.0 MPa
(b) 3.5 MPa
(c) 4.0 MPa
(d) 4.5 MPa
Ans. (b)

12. Consider the following statements:
1. When wind load is the primary’ load, no increase in the allowable stresses is provided for in members or fasteners.
2. Due to wind load acting along with dead and live loads, increase in allowable stress upto 33.33% can be provided for.
3. Due to wind load acting along with dead load, increase in allowable stress of 25% in foundation bolts can be provided for.
Which of the above statements is/are correct?
(a) 1, 2 only 3
(b) I only
(c) 2 and 3
(d) 3 only
Ans. (c)


13. A simply supported beam of uniform cross section has span ‘L’ and is loaded by a point load ‘P’ at its mid-span. What is the
length of the elastoplastic zone of the plastic hinge?
(a) L/3
(b) 2L/3
(c) L/2
(d) 3L/3
Ans. (a)

14. Consider the following statements
Torsional restraint in a beam can be achieved by providing.
1. Web or flange cleats at the end connections.
2. External support to the end of the compression flange
3. Bearing stiffness acting in conjunction with the bearing of the beam
Which of the above statements is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1., 2 and 3
Ans. (d)

15. Considering modular ratio as 13, grade of concrete as M20 and grade of steel as 415, what is the ratio of balanced depth of
neutral axis as per working stress method to the balanced depth of neutral axis as per limit state method?
(a) 12/7
(b) 11/3
(c) 7/12
(d) 3/11
Ans. (c)

16. What is the anchorage value pf a standard hook of a reinforcement bar or diameter D?
(a) 4D
(b) 8D
(c) 12D
(d) 16D
Ans. (d)

17. How is the base-level bending moment of cantilever retaining wall expressed as function of its height H?
(a) H1
(b) H2
(c) H3
(d) H4
Ans. (c)

18. Match List-I with List-II and select the correct answer using the code given below the lists
List-I List-II
A. At end support for imposed load 1. 0.5
(not fixed)
B. At inside support, next inner to end 2. 0.55
support, for imposed load (fixed)
C. At end support, for dead load 3. 0.60
and (fixed) imposed load
D. At all other interior supports 4.0.45
(other than at ‘B’) for imposed load (fixed)
5.0.4
Code:
A B C D
(a) 5 3 2 4
(b) 4 2 5 1
(c) 1 2 3 4
(d) 5 3 2 1
Ans. (b)

19. Match List-I with List-II and select the correct answer using the code given below the lists:
List-I List-II
A. Moment and shear 1. Durability
coefficients
B. Fire resistance 2. Stability
C. Sliding 3. Analysis of structure
D. Span to depth ratio of beam 4. Deflection limits
A B C D
(a) 4 2 1 3
(b) 3 2 1 4
(c) 4 1 2 3
(d) 3 1 2 4
Ans. (d)

20. What is the adopted maximum spacing between vertical stirrups in an RCC beam rectangular corss-section having an effective depth of 300 mm?
(a) 300 mm
(b) 275 mm
(c) 250 mm
(d) 225mm,
Ans. (d)