A steel bar 2 m long, 20 mm wide and 15 mm thick is subjected to a ten – McqOptions

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1.	A steel bar 2 m long, 20 mm wide and 15 mm thick is subjected to a tensile load of 30 kN. If Poisson’s ratio is 0.25 and Young’s modulus is 200 GPa, an increase in volume will be
A.	160 mm3
B.	150 mm3
C.	140 mm3
D.	130 mm3
Answer» C. 140 mm3

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