DEA-Three phase induction Motor

What is the primary component of a three-phase induction motor?

• A) Rotor

• B) Stator

• C) Commutator

• D) Armature

What is the frequency of the power supply required for a three-phase induction motor to operate?

• A) 50 Hz

• B) 60 Hz

• C) Both A and B

• D) None of the above

What is the most common type of rotor used in a three-phase induction motor?

• A) Squirrel cage rotor

• B) Wound rotor

• C) Phase wound rotor

• D) Salient pole rotor

The stator of a three-phase induction motor is made up of _____________.

• a) Laminated silicon steel

• b) Cast iron

• c) Aluminium

• d) Copper

The rotor of a three-phase induction motor is made up of _____________.

• a) Laminated silicon steel Copper

• b) Cast iron

• c) Aluminium

• d) Copper

In a three-phase induction motor, which component is stationary?

• a) Rotor

• b) Armature

• c) Commutator

• d) Stator

What is the purpose of the stator in a three-phase induction motor?

• a) To generate a magnetic field

• b) To provide torque to the rotor

• c) To conduct electrical current

• d) To provide mechanical support to the rotor

What is the most common type of rotor used in a three-phase induction motor?

• a) Squirrel cage rotor

• b) Wound rotor

• c) Salient pole rotor

• d) Permanent magnet rotor

Which of the following is NOT a component of a three-phase induction motor?

• a) Stator

• b) Rotor

• c) Commutator

• d) Bearings

What is the basic principle of operation of a three-phase induction motor?

• a) Electromagnetic induction

• b) Electrostatic induction

• c) Electrochemical induction

• d) None of the above