Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 1 (Q.No. 49)
49.
Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than
30 m
25 m
20 m
15 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
26 comments Page 3 of 3.

S.Sarkar said:   8 years ago
Slope 1:10 that means down 1 m for each 10 m distance.

So, 2.5 x 10 = 25 m.

Salma said:   8 years ago
I'm not getting the answer explain one again.

Dilawar memon said:   8 years ago
0.25 m is the answer as you discussed here.

Mani said:   8 years ago
@Hitesh.

I'm not getting you, explain clearly.

Hitesh said:   1 decade ago
Slope = 1/10.
HI = 1.5m.

Height of staff = 4.0 m.
Sight = (4-1.5)/(1/10) = 25 m.

Amar said:   1 decade ago
staff readings visible for staff height of 2.5m so distance is 2.5x10 = 25m.


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