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Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 4 (Q.No. 12)
UPSC Civil Service Exam Questions
12.
When are dropman holes provided in a sewerage system ?
There is a change from gravity system to pressure system
There is a change in the elevation of the ground level
There is change in the diameter of the sewer
There is change in the direction of the sewer line
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Subha Annadurai said:   7 years ago
Dropman holes are provided at a point of every bend, junction, change of gradient or change sewer CIA and regular intervals in a straight line. So option B, C D are correct.
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