engineering recuitment ONGC AEE Mechanical Mock Test 2025 Strength of Materials Simple Stress and Strain Stress and Strain
A prismatic bar has a cross-section of 25 mm by 50 mm and a length of 2000 mm. Under an axial load of 100 kN, the measured elongation of the bar is 2mm. The tensile stress and % strain in the bar are
1
80 MPa and 0.1%
2
0.08 GPa and 1.0%
3
80 N/mm2 and 1%
4
800 MPa and 0.01%
5
8 kN/mm2 and 0.001%