In a punching press, load is 0 at the time of punching.

Related MCQs

• In a punching press, which of the following quantity is constant?
• The maximum shear force required for punching depends on                  
• A machine punching 38 mm holes in 32 mm thick plate requires 7 N-m of energy per sq. mm of sheared area, find the maximum shear force required.
• Energy during actual punching operation is same as the energy supplied by the motor.
• The balance energy required for punching is supplied by the flywheel by                  
• 45 N/mm2. The connecting rod length between centres is 1.2 m and the cylinder bore is 0.5 m. If the engine runs at 250 r.p.m. and if the effect of piston rod diameter is neglected, calculate the net load on piston.