Civil Engineering - UPSC Civil Service Exam Questions - Discussion

17. 

What is the steepest gradient permissible on a 2° curve for B.G. line having using gradient of 1 in 200 ?

[A]. 1 in 250
[B]. 1 in 238
[C]. 1 in 209
[D]. 1 in 198

Answer: Option B

Explanation:

No answer description available for this question.

Arya said: (May 3, 2017)  
Ruling gradient = 1 in 200 = 0.5%.
Compensation for a 2° curve = 0.04 * 2 = 0.08%.
Compensated gradient = 0.5 " 0.08 = 0.42% = 1 in 238.

Subha Annadurai said: (Mar 15, 2018)  
Anyone Explain it.

Indhu said: (Apr 5, 2018)  
Ruling gradient = 1 in 200= 0.5%,
Compensation for 2° curve =0.04*2 =0.08%,
compensated gradient = 0.5-0.08=0.42% = 1 in 238.

Praveen Thakur said: (Jun 30, 2018)  
How 1 in 238? anyone explain me.

Jack said: (Jul 7, 2018)  
@Praveen Thakur.

0.42% =1/(100/42) =1/238.

Sushant said: (Aug 12, 2020)  
How 0.04? Explain me.

Sanjay said: (Aug 29, 2021)  
.04 is the standard compensation grade of BG.

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