Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 7 (Q.No. 20)
20.
The 10 mm markings on a levelling staff placed at 20 m are separated by
radian
radian
radian
radian.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Schiff Hardin said:   9 years ago
Anyone explain it.

Judicious said:   9 years ago
How? Please explain.

Rozer said:   9 years ago
1m = .5mm using a scale.

Vaibhav said:   8 years ago
For 10 mm (i.e. 0.01 m) vertical, horizontal is 20 m.

Therefore slope = vertical/horizontal = 0.01/ 20 = 1/2000.

Chandu said:   6 years ago
10/20000 = 1/2000.

Akshay said:   6 years ago
(10mm/20m) = (10mm/20000mm) = (1/2000).

Ajamal Khan said:   5 years ago
Angle = chord/radius.
So 10mm/20m.
= 10mm/20000mm.
= 1/2000 is answer.
(2)

Balu said:   4 years ago
10mm convert to meters 0.001.
20m.
So, 0.001/20 =1/2000.

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