Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 1 (Q.No. 42)
42.
The slope correction for a length of 30 m along a gradient of 1 in 20, is
3.75 cm
0.375 cm
37.5 cm
2.75 cm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
58 comments Page 6 of 6.

Prashant said:   1 decade ago
(H2/2L)+(H4/8L3) as gradient is 1 in 20. i.e For 20 m, h = 1 m.

So for 30 m, h = 1.5 m which is less than 3 m.

Therefore second term of equation should be neglected.

Answer is (1.5)2/2x3000 = 3.75 cm.

Pranab said:   1 decade ago
h = 1.5 m & l = 30 m.

So that = h2/2l = (1.5)2/2*30 = 0.0375 cm.

Anil soni said:   1 decade ago
For 20 m, h = 1 m. So for 30 m, h = 1.5 m.

Ahishek said:   1 decade ago
How h = 1.5?

Dash said:   1 decade ago
What is Gradient?

Priya said:   1 decade ago
Can any one explain this properly?

HITESH KUMAR said:   1 decade ago
Slope correction= h/2*2l.

Sandeep said:   1 decade ago
(1.5)2 / 2x3000 = 3.75 cm.

Note: Length 30 m, gradient 1/20 ; h= 1.5.

Equation : h2/2l.


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