engineering recuitment BHEL Engineer Trainee Mock Test 2025 Strength of Materials Pressure Vessels Analysis of Thin Sphere
A spherical steel pressure vessel 400 mm in diameter with a wall thickness of 20 mm, is coated with a brittle layer that cracks when strain exceeds100 x 10-7. What internal pressure will cause the layer to develop cracks? (E = 200 GPa, µ = 0.3)
1
0.057 MPa
2
5.7 MPa
3
0.57 MPa
4
57 MPa