Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 12 (Q.No. 32)
32.
A sewer, 1000 mm in diameter is laid at a slope to obtain a velocity of 0.8 m/s when running full. Assuming Manning's n as constant, what is the velocity in this sewer if it is running half full.
0.2 m/s
0.4 m/s
0.6 m/s
0.8 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Rahul verma said:   3 years ago
CASE 1
R=A/P
=D/4.

CASE 2 RUNNING HALF.

R=A/P,
=D/4.

So, the second velocity also be 0.8.
(1)

Nikita said:   3 years ago
Anyone, please explain this.

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