Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 22 (Q.No. 47)
47.
Two similar round bars A and B are each 30 cm long as shown in the given figure. The ratio of the energies stored by the bars A and B, is 
Discussion:
5 comments Page 1 of 1.
Noman said:
5 years ago
The Correct Answer is Ub/Ua =2/3 (D).
Shubham said:
4 years ago
How? Explain.
Djdanny said:
2 years ago
Here U~V ( strain energy is proportional to volume).
V = v1 + VW.
Va = 282.73cm^3.
Vb = 188.49cm^3.
Therefore Ub/Ua = 0.67(2/3).
V = v1 + VW.
Va = 282.73cm^3.
Vb = 188.49cm^3.
Therefore Ub/Ua = 0.67(2/3).
Rahul said:
2 years ago
Agree, option A is the correct answer.
(1)
Farzan said:
1 month ago
Find the Volume of both the bars = Area * Length.
For the first volume is (π/4 * 2^2 * 10)+(π/4 * 4^2 * 20).
For the first volume is (π/4 * 2^2 * 10)+(π/4 * 4^2 * 20).
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