Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 1 (Q.No. 2)
2.
If h is the difference in level between end points separated by l, then the slope correction is . The second term may be neglected if the value of h in a 20 m distance is less than
m
1 m
2 m
3 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
67 comments Page 3 of 7.

BALA said:   8 years ago
In this case, if we neglected 2nd term the correction should be less 20%. So,(h^2/2x20)<20% or 0.2. results h<2.828 m.

Srinivas reddy said:   8 years ago
h'2 = 20% * 2 * 20.
= 2.826.

Souvik said:   8 years ago
Thanks for the answer.

Aniket said:   7 years ago
In (h^4) / (8l^3), The Value comes out 0.008 (Almost 0%) up to filling of h=2.9. At h=3m the value comes out 0.01.

so, h=3 is the right answer.

Ghalib said:   7 years ago
For slope less than 1 in 25 so h/l is less than or eqal to1 in 25 so h is q.

Equal to or less than (.8).

Tapas Kumar Dinda said:   7 years ago
H^4/8L^3 = 0 or near to 0 which is neglected to measure, when I put h<3 (1/2,1,2), results are below 1mm, which is hard to measurable. So, 3 is correct.

Vin said:   6 years ago
H should be less than 3.

Even if it is substituted in the formula, the second term will get negligible (very small number-even neglecting the term will not affect the answer).

Shiv said:   6 years ago
Correct @Imran.

As we decrease the value of h less than 3, the second term impact becomes negligence so 3 is the answer.

Radhika said:   8 years ago
How will get 3.3?

Swathi said:   6 years ago
How will get 3.3?


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