Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 2 (Q.No. 16)
16.
Keeping the instrument height as 1
m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than

Discussion:
42 comments Page 3 of 5.
Luqman Ali said:
6 years ago
Sameer Sopori, You didn't have just memorized but have learned in-depth. You are 1000% percent right.
Krishna said:
6 years ago
The answer is 15. I too agree.
Proffis said:
6 years ago
4-1.5 = 2.5 m reading reading.
And slope is 1/10,
Then the sight on the slope is 2.5 * 10=25m,
According to the question, 45 is the correct answer.
And slope is 1/10,
Then the sight on the slope is 2.5 * 10=25m,
According to the question, 45 is the correct answer.
Ritu said:
8 years ago
What is the formula for sight on the down slope?
Suresh Awasthi said:
1 decade ago
Slope = 1/10.
H.I = 3/2 = 1.5 m.
Height of staff = 4.0 m.
Sight = (4 + 1.5)/(1/10) = 55 m.
According to the question much nearer value is 45 m.
H.I = 3/2 = 1.5 m.
Height of staff = 4.0 m.
Sight = (4 + 1.5)/(1/10) = 55 m.
According to the question much nearer value is 45 m.
Anshul said:
10 years ago
Slope= h^2/2L.
h = (1.5)+4\10 = 1.9.
= 1.9^2/2*4 = 45.
h = (1.5)+4\10 = 1.9.
= 1.9^2/2*4 = 45.
Dilawar memon said:
9 years ago
@Anshul & @Abhay.
You are making mistake the formula is,
h = (height of instrument + height of staff) / gradient.
How can you change the rule of solving round bracket first and then division?
You are making mistake the formula is,
h = (height of instrument + height of staff) / gradient.
How can you change the rule of solving round bracket first and then division?
Ravi said:
9 years ago
I think this should be 55m.
Dinesh prasad sao said:
9 years ago
I think the height of instrument is 1/2.
Naveen nk said:
8 years ago
Sight on the up slope=(Instrument height +length of the staff)÷gradient.
=(4+1.5)÷1/10,
=55m.
=(4+1.5)÷1/10,
=55m.
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