engineering recuitment BHEL Engineer Trainee Mock Test 2025 Strength of Materials Elastic Limit and Constants
A bar of 4 cm diameter is subjected to an axial load of 4T. The extension of the bar over a gauge length of 20 cm is 0.03 cm. The decrease in diameter is 0.0018 cm. The Poisson's ratio is
1
0.06
2
0.3
3
0.33
4
0.35