engineering recuitment NHPC JE & THDC JE 2023 Mock Test Strength of Materials Simple Stress and Strain Deflection of Bar
A steel bar of 20 mm × 20 mm square crosssection is subjected to an axial compressive load of 200 kN. If the length of the bar is 1 m and E =100 GPa, the contraction of the bar will be
1
0.2 mm
2
2.5 mm
3
5 mm
4
0.5 m