civil engineering MCQs – Page 241

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
4801. Modulus of rupture of concrete is a measure of_______________?
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A. direct tensile strength

B. flexural tensile strength

C. split tensile strength

D. compressive strength

4802. Minimum pitch of transverse reinforcement in a column is________________?
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A. forty-eight times the diameter of transverse reinforcement

B. lesser of the above three values

C. sixteen times the smallest diameter of longitudinal reinforcement bar to be tied

D. the least lateral dimension of the member

4803. Sinking of an intermediate support of a continuous beam_____________?
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A. e="color: #003f1a;">3. reduces the positive moment at center of span

B. correct answer is?

C. e="color: #003f1a;">2. increases the negative moment at support
D. e="color: #003f1a;">4. increases the positive moment at center of span
E. ="color: #003f1a;">1. reduces the negative moment at support
4804. Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to_____________?
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A. deflect downward or upward

B. deflect upward

C. none of the above

D. deflect downward
4805. The maximum value of hoop compression in a dome is given by___________________?
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A. wR/d

B. 2wR/d

C. wR/2d

D. wR / 4d

4806. In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on_______________?
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A. ="color: #003f1a;">1. bottom face near counterfort
B. e="color: #003f1a;">2. top face near counterfort
C. e="color: #003f1a;">3. bottom face near centre of span
D. e="color: #003f1a;">4. top face near centre of span The correct answer is

E. only (1)

F. only (2)

4807. Normally prestressing wires are arranged in the_______________?
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A. anywhere

B. lower part of the beam

C. center

D. upper part of the beam

4808. The effect of creep on modular ratio is__________________?
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A. to keep it unchanged

B. to increase it

C. to decrease it

D. either to decrease or to increase it

4809. In prestressed concrete______________?
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A. forces of tension and compression change but lever arm remains unchanged

B. forces of tension and compressions remain unchanged but lever arm changes with the moment

C. both forces of tension and compres-sion as well as lever arm change

D. both forces of tension and compres-sion as well as lever arm remain unchanged

4810. During erection, the pile of length / is supported by a crane at a distance of________________?
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A. 0.7071

B. 0.207 /

C. 0.293 /

D. 0.793 /

4811. The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on_______________?
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A. ="color: #003f1a;">1. top face parallel to the wall

B. correct answer is ?

C. e="color: #003f1a;">2. top face perpendicular to the wall
D. e="color: #003f1a;">4. bottom face perpendicular to the wall
E. e="color: #003f1a;">3. bottom face paralleUo the wall
4812. In a ring beam subjected to uniformly distributed load______________?
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A. e="color: #003f1a;">4. torsion at mid span is maximum

B. correct answer is ?

C. e="color: #003f1a;">3. torsion at mid span is zero
D. e="color: #003f1a;">2. shear force at mid span is maximum
E. ="color: #003f1a;">1. shear force at mid span is zero
4813. The recommended value of modular ratio for reinforced brick work is______________?
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A. 40

B. 30

C. 18

D. 58

4814. Select the correct statement?
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A. High tensile steel is cheaper than mild steel

B. Elastic modulus of high tensile steel is more than that of mild steel

C. Elastic modulus of high tensile steel is nearly the same as that of mild steel

D. Carbon percentage in high carbon steel is less than that in mild steel

4815. Select the correct statement?
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A. Elastic modulus of high tensile steel is nearly the same as that of mild steel

B. High tensile steel is cheaper than mild steel

C. Elastic modulus of high tensile steel is more than that of mild steel

D. Carbon percentage in high carbon steel is less than that in mild steel

4816. The design yield stress of steel according to IS: 456-1978 is_______________?
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A. 0.87 fy

B. 0.57 fy

C. 0.37 fy

D. 0.67 fy

4817. Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads?
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A. ect your answer based on the coding system given below :

4818. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of__________________?
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A. 0.367 xu

B. 0.573 xu

C. 0.416 xu

D. 0.446 xu

4819. The load factors for live load and dead load are taken respectively as_________________?
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A. 2.2 and 1.5

B. 2.2 and 2.2

C. 1.5 and 2.2

D. 1.5 and 1.5

4820. High carbon content in the steel causes_______________?
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A. decrease in tensile strength but increase in ductility

B. increase in tensile strength but decrease in ductility

C. decrease in both tensile strength and ductility

D. increase in both tensile strength and ductility