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Civil Engineering - UPSC Civil Service Exam Questions

Exercise : UPSC Civil Service Exam Questions - Section 2
16.
The distance between two bench marks is 1000 m. If during levelling, the total error due to collimation, curvature and refraction is found to be + 0.120 m, then the magnitude of the collimation error is
0.00527 m
0.0527 m
0.527 m
0.673 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Mercury (density = 13600 kg/m3, σ = 0.49N/mm internal diameter open-ended capillary tube is inserted in the middle of the beaker into the mercury. The meniscus in the tube will be below the external mercury surface by how much distance?
4.2 mm
5.7 mm
6.8 mm
7.3 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Which one of the following is considered to be an advantage of the heading and benching method of tunes construction ?
It is suitable for construction in unstable rocks
In this method, it is easy to install timber support
Tunnelling can be continous and the work can be expedited
In case of excessive water, it is easy to take corrective steps
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In a close-coiled helical spring subjected to an axial load, other quantities remaining the same, if the wire diameter is doubled, then the stiffness of the spring when compared to the original one, will become
twice
four times
eight times
sixteen times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The plastic section modulus of a rectangular section of width 100 mm and depth 12 mm is
1000 mm3
1800 mm3
2400 mm3
3600 mm3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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