engineering recuitment GATE ME 2023-24 Test Series Production Engineering (Manufacturing) Metal Forming Sheet Metal Operation
A steel punch can be stressed to a maximum compressive stress of 800 MN/m2. The least diameter of the hole which can be punched through a steel plate 14 mm thick with its ultimate shear strength being 300 MN/m2 is -
1
21 mm
2
31 mm
3
10 mm
4
15 mm