Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 6 (Q.No. 15)
15.
The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly
0.043 m
0.053 m
0.063 m
0.073 m
0.083 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 1 of 3.

Prazwol said:   10 months ago
(W^2×l)/24 P^2.

W = weight of tape
P = tension
So, sag correction = (4^2× 50)/ (24 × 5^20).
= 1.333.
(2)

K Andres said:   1 year ago
I think this is the formula;

To get w = 4kg - 5kg = -1kg
Then p = 5
L = 50.
(1)^2(50)/24(5)^2 = 0.08333.

Vintage said:   3 years ago
50/ 24*5^2 = 0.0833.
(1)

Sanku said:   5 years ago
Thanks @Johny Chauhan.

Manish said:   5 years ago
You are correct, Thanks @Johny.
(1)

Johny Chauhan said:   6 years ago
.083 m is not the correct answer for given data.

Here, Given data will be same except W= 1kg
So, ( 1kg)^2 * (50 m) /[ 24 * ( 5kg)^2]= .083 m.
(2)

Rishabh purohit said:   6 years ago
Correction for sag = W^2*L / 24*P^2 , where w is in kg,N,kN etc.

Correction for sag = w^2*L^3 / 24*P^2 , where w is in kg/m, N/m etc.
(2)

Rani said:   6 years ago
(5-4)^2*50/(24*5^2) = .0833.

Vaish said:   6 years ago
((4/50)^2 * 50)/(24*5^2) = 0.0833m.

Y (4/50)----->w is the weight per meter length.
(1)

Ahmed Mohamed Adan said:   7 years ago
Given:

(W)^2=(4kg )^2 = 16kg.
L=50.
p=5^2=25.

Sag correction = 16*50/24*25.
800/600 = -1.33ft.

Note: Sag correction is Always negative.
(3)


Post your comments here:

Your comments will be displayed after verification.