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If a tripod settles in the interval that elapses between taking...

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If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will

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Correct Answer: Option A
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3 Comments
Partha Baruah
Partha Baruah 7 years ago
Suppose BS is 5 m taken on a benchmark which has RL=100 m.
So Height of Instrument = 100+5=105 m
Now, suppose the true staff reading for the foresight should have been 7 m but since the tripod settles, suppose we get the staff reading as 4m.
So, now we will get RL of foresight as 105-4 = 101 m, but that actually should have been 105 - 7 = 98m.
Thus we got an INCREASED RL for the foresight.
SHUBHAM MEENA
SHUBHAM MEENA 8 years ago
how ?------ by a ies aspirant vachan tatu
Uttam Jaiswal
Uttam Jaiswal 8 years ago
How?
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