Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 6 (Q.No. 18)
18.
In a BG railway track, the specified ruling graident is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible compensated gradient of
1 in 257
1 in 357
1 in 457
1 in 512
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Paraumar said:   2 years ago
How 1/357? please explain.

Saqib sab said:   4 years ago
.04% * 3 = 0.12%,
= (1/250)-(.12/100),
= (100-30)/250*100,
= 1/357.

Assumi said:   4 years ago
0.28÷ 100 and 1÷357 gives the same value.

Grade compensation value is in % so we are dividing 0.28 by 100.

Johny Sins said:   4 years ago
@Nwibo Azubuike.

0.04 is the compensation value for B.G.

It is not the value taken from the Ruling Gradient (0.4).

Nwibo Azubuike said:   4 years ago
How is 0.4% = 0.04? Explain.

Vishu said:   4 years ago
@Arhaan khan.

28/100 => 0.28.

Arhaan Khan said:   4 years ago
@Hema Sumanth.

How did you convert 0.28 into 1/357?
(1)

Hema sumanth said:   7 years ago
Given ruling gradient = 1/250 * 100 = 0.4%.
Grade compensation for B.G = 0.04 * 3 = 0.12.
The permissible gradient = 0.4-0.12 = 0.28 that is 1/357.
(2)

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