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
Discussion:
16 comments Page 2 of 2.
Piku said:
8 years ago
205.75-(1 * 250/150)+3 = 206.75.
Karthik said:
8 years ago
@Arun
3 is the height of boring rod.
3 is the height of boring rod.
Arun said:
8 years ago
Why added 3 to 203.75?
Atul Patel said:
8 years ago
205.75 - 1 * 205/125 = 203.75,
203.75 + 3 = 206.75.
203.75 + 3 = 206.75.
Vinay said:
8 years ago
Answer C. 206.75.
205.75 - 1*250/125 = 206.75 m.
205.75 - 1*250/125 = 206.75 m.
Praveen said:
8 years ago
Can you explain it?
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