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SINGLE PHASE MOTOR-1

An educational illustration of single phase motors, showing components like capacitors, windings, and a schematic of how a split phase motor operates, in a technical style.

Single Phase Motor Quiz

Test your knowledge on single phase motors with our engaging quiz designed for electrical enthusiasts and professionals. This quiz covers important concepts and principles related to split phase and capacitor start motors.

10 multiple-choice questions
Instant feedback on your answers
Enhance your understanding of motor types

10 Questions2 MinutesCreated by WindingMaster507

1. In a split phase motor, the running winding should have ______________

High resistance and low inductance

low resistance and high inductance

High resistance as well as high inductance

Low resistance as well as low inductance

2. If the capacitor of a single-phase motor is short-circuited _______

the motor will not start

The motor will burn

The motor will run in reverse direction

The motor will run in the same direction at reduced r.p.m

3. In capacitor start single-phase motors _______________

Current in the starting winding leads the voltage

Current in the starting winding lags the voltage

Current in the starting winding is in phase with voltage in running winding

None of the above

4. In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to ____________

Improve power factor

Increase overload capacity

Reduce fluctuations in torque

Improve torque

5. In a capacitor start motor, the phase displacement between starting and running Winding can be nearly _____________

10 degree

30 degree

60 degree

90 degree

6. In a split phase motor _____________

The starting winding is connected through a centrifugal switch

The running winding is connected through a centrifugal switch

Both starting and running windings are connected through a centrifugal switch

Centrifugal switch is used to control supply voltage

7. The torque developed by a single-phase motor at starting is _____________

More than the rated torque

Rated torque

Less than the rated torque

Zero

8. Which of the following motor will give relatively high starting torque?

Capacitor start motor

Capacitor run motor

Split phase motor

Shaded pole motor

9. Which of the following motor will have relatively higher power factor?

Capacitor run motor

Shaded pole motor

Capacitor start motor

Split phase motor

10. In a shaded pole single-phase motor, the revolving field is produced by the use of _____

Inductor

Capacitor

Resistor

Shading coils

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