Civil Engineering - UPSC Civil Service Exam Questions

21. 

Consider the following statements :
I: To insert a 28 mm nominal diameter rivet, 29.5 mm rivet hole is made.
II: Provision is made to allow temperature expansion of the bolt.

A. both I and II are true
B. I is true but II is false
C. I is false but II is true
D. both I and II are false

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

22. 

Consider the following statements :
A : For beams, I-sections are more economical than rectangular section.
R : Most of the material is concentrated away from the centroid.
Of these statements :

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is try but R is false
D. A is false but R is true.

Answer: Option A

Explanation:

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23. 

Two different granular soils are placed in a permeameter tube and flow is allowed to take place under a constant total head. The total head and pressure head at point A in centimeters, are respectively.

A. 75, 75
B. 25, 75
C. 25, 25
D. 75, 25

Answer: Option B

Explanation:

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24. 

When the degree of consolidation is 50%, the time factor is about

A. 0.2
B. 0.5
C. 1.0
D. 2.0

Answer: Option A

Explanation:

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25. 

General shrinkage in cement concrete is caused by

A. carbonation
B. stresses due to external load
C. drying the starting with a stiff consistency
D. drying starting with a wetter consistency.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.