Civil Engineering - UPSC Civil Service Exam Questions

46. 

Why are weep holes provided at the back of retaining walls ?

A. To reduce the active earth pressure on the walls
B. To reduce the build - up of hydrostatic pressure
C. To provide better compaction
D. To increase the passive earth pressure

Answer: Option B

Explanation:

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47. 

For the frame shown in the figure, the distribution factors for members BC and BA at joint B are

A. 0.4, 0.6
B. 0.5, 0.5
C. 0.6, 0.4
D. 0.7, 0.3

Answer: Option C

Explanation:

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48. 

Force in the member AB of the frame shown in the given figure will be:

A. zero
B. W
C. W 2
D.

Answer: Option A

Explanation:

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49. 

What should be the minimum grade of reinforced concrete in and around sea coast construction?

A. M 35
B. M 30
C. M 25
D. M 20

Answer: Option B

Explanation:

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50. 

A sand deposit has a porosity of 1/3 and its specific gravity is 2.5. The critical hydraulic rediant to cause sand boiling in the stratum will be

A. 1.5
B. 1.25
C. 1.0
D. 0.75

Answer: Option C

Explanation:

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