engineering recuitment BHEL Engineer Trainee Mock Test 2025 Production Engineering (Manufacturing) Metal Forming Sheet Metal Operation
What will be the force required to punch a circular blank of 70 mm diameter in a place of 5 mm thickness? The ultimate shear stress of the plate is 400 N/mm2.
[assume, π = \(\frac{{22}}{7}\)]
1
44 kN
2
440 kN
3
4.4 kN
4
4.4 MN