Civil Engineering - UPSC Civil Service Exam Questions - Discussion


A three-hinged circular arch ACB is formed by two quadrants of circles AC and BC of radii 2R and R respectively with C as crown, as shown in the figure at side. Consider the following in respect of the reactive forces developed at support A and B due to concentrated load W at the Crown.
1. Line of action RA at A is inclined as 45° to the horizontal.
2. VA = VB = W/2
3. HB = 2 HA
4. HA = HB = W/2
Which of the above is/are correct ?

[A]. 1 and 3
[B]. 2 and 3
[C]. 1, 2 and 4
[D]. 4 only

Answer: Option A


No answer description available for this question.

Subha Annadurai said: (Mar 22, 2018)  
Please Explain the answer.

Ramadas said: (Oct 1, 2018)  
Please explain.

Abc said: (Mar 13, 2019)  
Yes, option C is the correct answer.

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