Civil Engineering - UPSC Civil Service Exam Questions

6. 

While driving a large number of piles in loose sand :

A. It is advantageous to follow a sequence of pile driving such that the inner piles are driven first and then proceed outwards
B. It is advantageous to follow a sequence of pile driving such that the piles near the periphery are driven first and inner piles are driven later
C. It is advantageous to follow a sequence of pile driving such that alternately inner and outer piles are driven
D. Driving of piles can be done in any random order

Answer: Option A

Explanation:

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7. 

Surface tension of water when in contact with air is 0.0737 N/m. The difference of pressure between the inside and outside of a droplet of rain water 1 mm in diameter is nearly equal to

A. 0.15 kN/m2
B. 0.20 kN/m2
C. 0.25 kN/m2
D. 0.30 kN/m2

Answer: Option D

Explanation:

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8. 

The upstream slope of an earth dam under steady seepage condition is

A. equipotential line
B. phreaticline
C. flow-line
D. seepage line

Answer: Option A

Explanation:

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9. 

What are the magnitudes of horizontal and vertical support reactions, respectively at support. A of the frame shown in figure below ?

A. 16 kN, 18 kN
B. 16 kN, 6 kN
C. 6 kN, 16 kN
D. 8 kN, 6 kN

Answer: Option B

Explanation:

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10. 

Consider the following statements :
Shrinkage of concrete depends upon the
1. relative humidity of the atmosphere.
2. passage of time.
3. applied stress.
Which of these statements is/are correct ?

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

Answer: Option A

Explanation:

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