The speed of a universal motor is generally reduced by using_________?

A. Gear trains
B. V-belts
C. Brakes
D. Chains

Which of the following single-phase motors has relatively poor starting torque ?

A. Universal motor
B. Repulsion motor
C. Capacitor motor
D. All single phase motors have zero starting torque

Which of the following motors can be used for unity power factor ?

A. Capacitor run motor
B. Shaded pole motor
C. Hysteresis motor
D. Schrage motor

Which type of load is offered by cranes and hoists ?

A. Gradually varying load
B. Non-reversing, no-load start
C. Reversing, light start
D. Reversing, heavy start

The wattage rating for a ceiling fan motor will be in the range_________?

A. 200 to 250 w
B. 250 to 500 w
C. 50 to 150 w
D. 10 to 20 w

The wattage of motor for driving domestic sewing machine will be around__________?

A. 100 to 150 w
B. 40 to 75 w
C. 10 to 30 w
D. 5 to 10 w

In case of high speed universal motor which of the following needs more attention?

A. End play
B. Air gap
C. Insulation in rotor
D. Balancing of rotor

The repulsion-start induction-run motor is used because of___________?

A. Good power factor
B. High efficiency
C. Minimum cost
D. High starting torque

In case of a shaded pole motor the direction of rotation of the motor is__________?

A. From main pole to shaded pole
B. From shaded pole to main pole
C. Either of the above depending on voltage
D. Either of the above depending on power factor

Which of the following single-phase induction motors is generally used in time phonographs ?

A. Resistance start
B. Capacitor start capacitor run
C. Shaded pole
D. Universal