Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 5 (Q.No. 49)
49.
A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is
208.75 m
202.75 m
206.75 m
211.75 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 2 of 2.

Chadha said:   8 years ago
205.75 - (250*1/125-3)= 206.75.

Ajay Kumar Yadav said:   5 years ago
205.75 - (250/125) + 3 =206.75.
(3)

Rajib kumar said:   7 years ago
Please explain the solution.

Arun said:   8 years ago
Why added 3 to 203.75?

Gaurav said:   8 years ago
Gradient is downward.

Praveen said:   8 years ago
Can you explain it?


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