Civil Engineering MCQJE Level Civil Engineering

A conical bar of length l, base diameter d and unit weight w is fixed at its upper end and hangs freely. The elongation under its own weight is

Strength of MaterialsStrength of MaterialsMEDIUM

Choose the correct answer

wl²/2E

wl²/4E

wl²/6E

wl²/8E

C. wl²/6E

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For a cone hanging under self-weight, elongation = wl²/6E (a uniform bar gives wl²/2E).

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This MCQ belongs to WBPSC JE (Civil) Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.