UPSC Civil Service Exam Questions

Q1:
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

A 3/2

B 1.0

C 5/8

D 2/3

ANS:A - 3/2

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).



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.