Civil Engineering - UPSC Civil Service Exam Questions

21.
A circular sewer of diameter 1 m carries storm water to a depth of 0.75 m. The hydraulic radius is approximately
0.3 m
0.4 m
0.5 m
0.6 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
If the staff intercept on a staff located at 100 m from the level for five division deviation of the bubble is 0.050 m and if the length of one division of the bubble is 2 mm, then the radius of curvature of the bubble is 0.050 m and if the length of one division of the bubble is 2 mm, then the radius of curvature of the bubble tube is
2.02 m
2.20 m
20.00 m
20.20 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
If the magnitude of the resultant of two forces F and 2F acting at a point O is 50 N, and the included angle between F and 2F is 90°, then what is the magnitude of F ?
F = 10 N
F = 502 N
F = 252 N
F = 105 N
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
Consider the following assumptions in the analysis of a plane truss
1. The individual members are straight.
2. The individual members are connected by frictionless hinges.
3. The loads and reactions act only at the joints.
Of these assumptions :
1 and 2 are valid
1 and 3 are valid
2 and 3 are valid
1, 2 and 3 are valid
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
In a shear test on cohesionless soils, if the initial void ratio is less than the critical void ratio, the sample will :
increase in volume
initially increase in volume and then remain constant
decrease in volume
initially decrease and then increase in volume
Answer: Option
Explanation:
No answer description is available. Let's discuss.