engineering recuitment BHEL Engineer Trainee Mock Test 2025 Strength of Materials Simple Stress and Strain
A steel bar of 40 mm × 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2 m and E = 200 GPa, the elongation of the bar will be:
1
1.25 mm
2
2.70 mm
3
4.05 mm
4
5.40 mm