Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 8 (Q.No. 2)
2.
If Δ is the angle of deflection of a simple curve of radius R, the length of its long chord, is
R cos
2R cos
R sin
2R sin .
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
7 comments Page 1 of 1.

Sagar naik said:   8 years ago
Why not option A?

Abhishek singh said:   7 years ago
It's option A.

Abhishek said:   7 years ago
Please explain. Why not option A is correct?

Rohit said:   7 years ago
Yes, Options D is right.

Dhaval Vaghasiya said:   6 years ago
RcosΔ/2 = length between the midpoint of long chord and center of the curve.

So, option D is right.

Dave said:   6 years ago
Option D is correct. Considering the rigth angle on the center of the cord, then apply trigonometric functions.

Jinish said:   4 years ago
Length of the chord - diameter multiply by the half degree of the sine.
= D x sin angle/2
= 2R x sine θ/2

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