Civil Engineering - UPSC Civil Service Exam Questions

1. 

Which one of the following statements is correct ? The function of an air vessel in a reciprocating pump is to obtain :

A. reduction of suction head
B. rise in delivery head
C. continuous supply of water at uniform rate
D. increase in supply of water

Answer: Option C

Explanation:

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2. 

Dolphin is a type of which one of the following ?

A. Pile foundation
B. Isolated footing
C. Raft foundation
D. Caisson

Answer: Option A

Explanation:

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3. 

A steel rod, 100 mm long is held between two rigid supports. It is heated by 20°C. If the coefficient of thermal expansion of the material of the rod is 15 x 10-6 /° C and modulus of elasticity is 200 x 103 MN/m2, what is the stress in the rod ?

A. 20 MN/m2
B. 40 MN/m2
C. 60 MN/m2
D. 80 MN/m2

Answer: Option C

Explanation:

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4. 

Consider for following statements :
In an under-reinforced concrete beam,
1. actual depth of neutral axis is less than the critical depth of neutral axis.
2. concrete reaches ultimate stress prior to steel reaching the ultimate stress.
3. moment of resistance is less than that of balanced sections.
4. lever arm of resisting couple is less than that of balanced sections.
Which of the statements given above are correct ?

A. 1 and 2
B. 1 and 3
C. 2, 3 and 4
D. 1 and 4

Answer: Option B

Explanation:

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5. 

What is the appropriate field test to determine the in-situ undrained shear strength of a soft clay ?

A. static cone penetration test
B. standard penetration test
C. Plate load test
D. Vane shear test

Answer: Option D

Explanation:

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