Civil Engineering - UPSC Civil Service Exam Questions

6. 

For one cubic metre of brick masonry, the number of modular bricks needed is

A. 400 or less
B. 400 to 450
C. 500 to 550
D. 600 to 650

Answer: Option C

Explanation:

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7. 

To produce low heat cements, it is necessary to reduce the compound

A. C3S
B. C2S
C. C3A
D. C4AF

Answer: Option C

Explanation:

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8. 

The probability that the load on a scaffolding will exceed the design load of 3 tonnes is 0.15. At the same time, the probability that the strength of the scaffolding will be more than 3 tonnes is 0.85. The probability that the scaffolding will fail is

A. 0.2775
B. 0.1275
C. 0.0225
D. 0.0020

Answer: Option C

Explanation:

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9. 

The dry density of a soil is 1.5 g/cc. If the saturation water content were 50%, then its saturated density and submerged density would, respectively, be

A. 1.5 g/cc and 1.0 g/cc
B. 2.0 g/cc and 1.0 g/cc
C. 2.25 g/cc and 1.25 g/cc
D. 2.0 g/cc and 1.50 g/cc

Answer: Option C

Explanation:

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10. 

Consider the following soil parameters and conditions :
1. Drainage conditions
2. Thickness of layer
3. Initial void ratio
4. Over-burden pressure
The magnitude of settlement is influenced by,

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

Answer: Option B

Explanation:

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