engineering recuitment AAI JE Technical Mock Test 2020-21 Strength of Materials Simple Stress and Strain Axial Elongation of Bar
A rod of copper originally 305 mm long is pulled in tension with a stress of 276 MPa. if the modulus of elasticity is 110 GPa and the deformation is entirely elastic, the resultant elongation will be nearly
1
1.0 mm
2
0.8 mm
3
0.6 mm
4
0.4 mm