SINGLE PHASE MOTOR-1
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
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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