Energy during actual punching operation is same as the energy supplied by the motor.

Related MCQs

• In a punching press, load is 0 at the time of punching.
• The balance energy required for punching is supplied by the flywheel by                  
• 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.
• In a punching press, which of the following quantity is constant?
• The maximum shear force required for punching depends on                  
• Power is transmitted by an electric motor to a machine by using a belt drive. The tensions on the tight and slack side of the belt are 2200 N and 1000 N respectively and diameter of the pulley is 600 mm. If speed of the motor is 1500 r.p.m, find the power transmitted.
• It is required to lift water at the top of a high building at the rate of 50 litres/min. Assuming the losses due to friction equivalent to 5 m and those due to leakage equal to 5 m head of water, efficiency of pump 90%, decide the kilowatt capacity of motor required to drive the pump.
• Inertia torque acts in the same direction as the accelerating couple?
• Inertia force and the reversed effective force are the same.
• Balancing of single rotating mass by balancing masses in same plane and in different planes cannot take place.