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This question belongs to Mining Engineering Rock Mechanics And Roof Supporting

Rock Mechanics and Roof Supporting

?

The uni-axial compressive strength and modulus of elasticity of a rock sample are 90 MPa and 30 GPa respectively. The stored strain energy per unit volume in kN.m/m³ of the sample at the time of failure is

A) 1.5 B) 140 C) 270 D) 135

Answer & Solution

Correct Answer: Option D

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Question posted by Examveda

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