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
. The second term may be neglected if the value of h in a 20 m distance is less than
m1 m
2 m
3 m
Discussion:
68 comments Page 3 of 7.
Aniket said:
8 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.
so, h=3 is the right answer.
Ghalib said:
8 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).
Equal to or less than (.8).
Pradeep said:
8 years ago
Please, explain the answer clearly.
Juhi said:
8 years ago
How it come 3.3?
Please explain clearly.
Please explain clearly.
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).
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.
As we decrease the value of h less than 3, the second term impact becomes negligence so 3 is the answer.
P.ayub said:
8 years ago
If the second term is neglected the slope correction falls under <=20%.
So it may be taken as h^2/2l=20%.
h^2/2*20=0.2.
h=2.82<3.
So answer is 3.
So it may be taken as h^2/2l=20%.
h^2/2*20=0.2.
h=2.82<3.
So answer is 3.
Amrit kshetri said:
6 years ago
The question is wrong it should be h2/2l -h4/8l3 instead of h4/8l3.
Nagadhar said:
6 years ago
How will get 3.3?
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