In split-phase motor auxiliary winding is of___________?

Byadmin October 3, 2018August 11, 2021

In split-phase motor auxiliary winding is of___________?

A. thick wire placed at the bottom of the slots
B. thick wire placed at the top of the slots
C. thin wire placed at the top of the slots
D. thin wire placed at the bottom of the slots

Single Phase Induction Motors

In a shaded pole single-phase motor, the revolving field is produced by the use of_________?

In a shaded pole single-phase motor, the revolving field is produced by the use of_________?

A. inductor
B. capacitor
C. resistor
D. shading coils

Read More In a shaded pole single-phase motor, the revolving field is produced by the use of_________?
Single Phase Induction Motors

Single phase induction motor usually operates on__________?

Single phase induction motor usually operates on__________?

A. 0.6 power factor lagging
B. 0.8 power factor lagging
C. 0.8 power factor leading
D. unity power factor

Read More Single phase induction motor usually operates on__________?
Single Phase Induction Motors

A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?

A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?

A. run for about 1 minute
B. run for about 5 minutes
C. picked up about 50 to 70 per cent of rated speed
D. picked up about 10 to 25 per cent of rated speed

Read More A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?
Single Phase Induction Motors

Hysteresis motor is particularly useful for high-quality record players and tape-recorders because___________?

Hysteresis motor is particularly useful for high-quality record players and tape-recorders because___________?

A. it revolves synchronously
B. it is not subject to any magnetic or mechanical vibrations
C. it can be easily manufactured in extremely small sizes of up to 1 W output
D. it develops hysteresis torque which is extremely steady both in amplitude and phase

Read More Hysteresis motor is particularly useful for high-quality record players and tape-recorders because___________?
Single Phase Induction Motors

Direction of rotation of a split phase motor can be reversed by reversing the connection of__________?

Direction of rotation of a split phase motor can be reversed by reversing the connection of__________?

A. running winding only
B. starting winding only
C. either A. or (b)
D. both A. and (b)

Read More Direction of rotation of a split phase motor can be reversed by reversing the connection of__________?
Single Phase Induction Motors

The capacitors used in single-phase capacitor motors have no__________?

The capacitors used in single-phase capacitor motors have no__________?

A. voltage rating
B. dielectric medium
C. polarity marking
D. definite value

Read More The capacitors used in single-phase capacitor motors have no__________?

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