Civil Engineering - UPSC Civil Service Exam Questions - Discussion

12. 

A cylindrical bar of 20 mm diameter and 1 m length is subjected to a tensile test. Its longitudinal strain is 4 times that of its lateral strain. If the modulus of elasticity is 2 x 105 N/mm2, then its modulus of rigidity will be

[A]. 8 x 106 N/mm2
[B]. 8 x 105 N/mm2
[C]. 0.8 x lO4 N/mm2
[D]. 0.8 x 105 N/mm2

Answer: Option D

Explanation:

No answer description available for this question.

Chhhaya said: (Jun 8, 2017)  
G = E/2(1+possion ratio).

Basavaraju said: (Jun 27, 2017)  
G=2*10^5/2*(1+(1/4))=0.8*10^5.

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