Discussion :: Surveying - Section 1 (Q.No.35)
If θ is the slope of the ground and l is the measured distance, the correction is
Answer: Option A
No answer description available for this question.
|Danesh said: (Jul 15, 2014)|
|Slope correction= L-D.
So Correction = l-lcos@.
|Vamsi Suppu said: (Sep 29, 2014)|
|Slope correction = L-D.
Correction = L-D.
|Saravanaraja said: (Jun 29, 2017)|
|Akki said: (Sep 8, 2018)|
|D means? Give expansion for the formula.|
|Priyanka Shah said: (Nov 18, 2018)|
how comes D=I cosθ. Please explain it.
|Ameiry Hassan said: (Dec 26, 2018)|
|Slope correction = l-D, where l is sloping distance and D horizontal distance, construct a right-angled triangle ABC whose hypotenuse is l, adjacent D and the angle subtended between l and D be theta (θ) solve for D using trigonometric ratio u will get D= lcosθ then recall,
Correction = l-D
= l(1-cos θ)
Using the concept of half angle formula 1-cosθ= 2sin^2θ/2 and therefore correction= 2lsin^2(θ/2).
|Kuldeep Kumar said: (Aug 15, 2020)|
|Right answer is A.|
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