AC SINGLE PHASE MOTOR - Quiz

1) Which motor is preferred for domestic water pumps?

Universal Motor Repulsion motor Shaded pole motor Capacitor start motor

2) Which type of motor has relatively small starting torque?

Universal motor Capacitor start capacitor run motor Capacitor start induction run motor Resistance start induction run motor

3) What is the function of centrifugal switch in split phase motor?

Protects from over current Maintains constant speed Protect the motor from over loading Make and break the starting winding from supply

4) How to produce starting torque in a shaded pole fan motor?

Using rings on poles Using capacitor on winding circuits Interchanging cage rotor windings by switch Interchanging the field coil windings by switch

5) What is the reason to use a permanent capacitor in fan motor circuit?

Speed regulation Lower power consumption Splitting of phase for torque Controlling electrical interference