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Civil Engineering - UPSC Civil Service Exam Questions

Exercise : UPSC Civil Service Exam Questions - Section 26
11.
Consider the following statements :
Curing of concrete is necessary because
(a) concrete needs more water for chemical reaction
(b) it is necessary to protect the water initially mixed in concrete from being lost during evaporation
(c) penetration of surrounding water increases the strength of concrete Which of the statements given above is/are correct ?
1, 2 and 3
1 and 3 only
2 only
3 only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The combined correction for curvature and refraction for a distance of 1400 m is
0.153 m
0.132 m
0.094 m
0.021 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Given that for a soil deposit,
K0 = earth pressure coefficient at rest,
Ka = active earth pressure coefficient,
Kp = passive earth pressure coefficient and
u = Poisson's ratio, the value of (1 - μ) is given by
Ka/Kp
K0/Ka
KP/Ka
1/K0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In water treatment process, the chemical used for defluoridation is
Alum
Lime
Potassium permanganate
Sodium aluminate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
As elastic bar of length 'l', cross-sectional area A, Young's modulus of elasticity E and self-weight W is hanging vertically. It is subjected to a load P applied axially at the bottom end. The total elongation of the bar is given by.
WI/AE + PI/AE
WI/2AE + PI/AE
WI/2AE + PI/2AE
WI/AE + PI/2AE
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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