Single Phase Motor Quiz

What is the principle of operation of a single-phase split-phase induction motor?

• Using a single winding for both main and starting functions

• Generating a stationary magnetic field

• Creating a rotating magnetic field by using two windings - a main winding and an starting winding

• Utilizing three windings for increased efficiency

How does a capacitor start motor differ from a split-phase motor?

• A capacitor start motor has a single-phase power supply, while a split-phase motor has a three-phase power supply.

• A capacitor start motor uses a starting winding for starting torque, while a split-phase motor uses a capacitor for starting.

• A capacitor start motor does not have a starting torque.

• A capacitor start motor uses a capacitor for starting torque, while a split-phase motor uses a starting winding for starting.

In which household appliances are single-phase split-phase induction motors commonly used?

• Toasters

• Refrigerators, washing machines, air conditioners, fans

What is the role of the capacitor in the motor?

• Provides low starting torque

• Provides a high starting torque

What are the key components of a single-phase split-phase induction motor?

• Field winding, armature winding, brushes

• Brushes, slip rings, armature

• Rotor, stator, commutator

• Main winding, starting winding, centrifugal switch

Discuss the importance of centrifugal switches in split-phase motors.

• Centrifugal switches are used to control the speed of split-phase motors.

• Centrifugal switches are important in split-phase motors to disconnect the starting winding once the motor reaches a certain speed, preventing overheating and damage.

• Centrifugal switches are designed to increase the power consumption of split-phase motors.

• Centrifugal switches are only necessary in single-phase motors.

What is hp means as it relates to motors?

• Horsepower

• held permanently

• high power

• Heavy protection

A dual voltage motor can operate on two voltages, that is 120 V and 240 V

• True

• False

If a motor operates on 480 V as its high voltage ,what is its operating voltage in the alternative mode

• 480 V

• 240 V

• 120 V

• 110 V

When a dual voltage motor operates in low voltage mode ,how are the winding connected ?

• Series

• Parallel