Civil Engineering - UPSC Civil Service Exam Questions

1. 

A pipeline of 5 cm diameter is reduced abruptly to 2.5 cm diameter at a section to enable measurement of the water flowing through it. The loss of head at the contraction is 0.5 m. Given that, in metric units, 2g = 4.43 and g = 3.132, the mean velocity in the reduced section will be

A. 0.5 m/sec
B. 1.1075 m/sec
C. 1.566 m/sec
D. 4.43 m/sec

Answer: Option D

Explanation:

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2. 

A clay layer, 5 m thick undergoes 50% consolidation in 5 years when subjected to an average pressure increase of 50 kN/m2. If the clay layer were 10 m thick, in what period would it undergo 50% consolidation for the same pressure ?

A. 10 years
B. 2.5 years
C. 25 years
D. 20 years

Answer: Option D

Explanation:

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3. 

Which one of the following is the most preferred wood for high quality and durable furniture ?

A. Sandalwood
B. Deodar wood
C. Teakwood
D. Shisham wood

Answer: Option C

Explanation:

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4. 

For ornamental work, which type(s) of bricks is/ are preferred ?
1. Silica bricks
2. Silica lime bricks
3. Bricks produced in autoclaves
Select the correct answer using the code given below :

A. 1 and 3 only
B. 2 and 3 only
C. 1 only
D. 2 only

Answer: Option B

Explanation:

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5. 

In case of footing on the surface of shallow depth is very dense sand, which one of the following types of failure is likely to occur?

A. Punching shear failure
B. Local shear failure
C. General shear failure
D. Any of the above three

Answer: Option C

Explanation:

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