Civil Engineering - UPSC Civil Service Exam Questions

11. 

Consider the following factors :
1. Period of construction, winter/summer
2. Degree of foundation roughness
3. Slab thickness
4. Reinforced/unreinforced
Which of these factors are considered as per IRC for obtaining the maximum expansion joint spacing in rigid pavements ?

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

Answer: Option A

Explanation:

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12. 

The concentration of hardness producing cations may be estimated using which one of the following ?

A. Conductivity meter
B. pH meter
C. Spectrophotometer
D. Flame photometer

Answer: Option C

Explanation:

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13. 

A vehicle is moving up on an inclined plane. The vehicle has rear-wheel drive. Force of friction on the rear wheels will be in a direction

A. along the plane but backward
B. backward at an angle φ with the plane, where φ is the friction angle
C. along the plane but forward
D. forward at an angle φ with the plane, where φ is the friction angle

Answer: Option C

Explanation:

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14. 

Consider the following statements :
In the case of close coiled spring carrying an axial loading the spring is subjected to :
1. torsion
2. axial force
3. bending moment the effect of which can be neglected.
Of these statements :

A. 1, 2 and 3 are correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 2 and 3 are correct

Answer: Option C

Explanation:

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15. 

The given figure shows a frame to be analysed by moment distribution method. The distribution factors for members GF, GH and GD will be respectively

A.
B.
C.
D.

Answer: Option B

Explanation:

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