# Civil Engineering - UPSC Civil Service Exam Questions

6.
A river model is constructed to a horizontal scale of 1:1000 and a vertical scale of 1:100. A model discharge in the prototype, of what magnitude ?
102 m3 /s
103 m3 /s
104 m3 /s
105 m3 /s
Explanation:
No answer description is available. Let's discuss.

7.
If a 30 m length can be taped with a precision of ± 0.01 m, then the standard error of measuring 1.08 km with the same precision will be
± 0.54 m
± 0.45 m
± 0.36 m
± 0.06 m
Explanation:
No answer description is available. Let's discuss.

8.
a grit chamber of dimensions 12.0 m x 1.50 x 800 m liquid depth has a flow of 720 m3/hr. Its surface loading rate and detention time are, respectively,
40000 m3/hr/m2 and 1.2 minute
40000 1 ph/m2 and 40 minutes
40 m/hr/m2 and 12 minutes
40000 1 ph/m2 and 1.2 minute
Explanation:
No answer description is available. Let's discuss.

9.
In signals system design of Railways the distance at which the outer signal is to be placed is decided on basis of the
Allowable speed
Running speed
Minimum speed
Journey speed