Civil Engineering - UPSC Civil Service Exam Questions - Discussion

5. 

A round steel bar of overall length 40 cm consists of two equal portions of 29 cm each having diameters of 10 cm and 8 cm respectively. If the rod is subjected to a tensile load of 10 tones, the elongation will be given by :(E = 2 x 106 kg/cm2)

[A]. 1/10π (1/25 + 1/16) cm
[B]. 2/10π (1/25 + 1/16) cm
[C]. 3/10 π (1/25 + 1/16) cm
[D]. 4/10 π (1/25 + 1/16) cm

Answer: Option A

Explanation:

No answer description available for this question.

Dharma. S said: (May 28, 2020)  
Please explain the answer.

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