Electric Motor -Multiple Choice Questions Quiz

Interactive MCQs on “Electric Motor”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is an electric motor?

(a) A device that generates electricity
(b) A device that converts electrical energy into mechanical energy
(c) A device that stores electrical energy
(d) A device that measures electrical current

Question 2: What is the primary source of energy for an electric motor to function?

(a) Chemical energy
(b) Thermal energy
(c) Mechanical energy
(d) Electrical energy

Question 3: What is the role of the commutator in a DC motor?

(a) To provide electrical insulation
(b) To reverse the direction of current flow in the armature coil
(c) To regulate the motor speed
(d) To increase the motor's efficiency

Question 4: What is the purpose of the brushes in an electric motor?

(a) To keep the motor cool during operation
(b) To provide mechanical support to the motor shaft
(c) To transfer electrical current to the rotating coil
(d) To adjust the motor speed

Question 5: In which type of electric motor does the rotor follow the rotating magnetic field produced by the stator?

(a) DC motor
(b) AC motor
(c) Brushless motor
(d) Universal motor

Question 6: What type of electric motor is commonly used in household appliances like fans and refrigerators?

(a) DC motor
(b) AC motor
(c) Stepper motor
(d) Servo motor

Question 7: What is the role of the armature in an electric motor?

(a) To generate electricity
(b) To provide mechanical support to the motor
(c) To produce the magnetic field
(d) To rotate and create mechanical motion

Question 8: Which type of electric motor is known for its precise position control and is commonly used in robotics and automation systems?

(a) DC motor
(b) AC motor
(c) Stepper motor
(d) Universal motor

Question 9: What is the function of the field windings in an electric motor?

(a) To transfer electrical current to the rotor
(b) To provide mechanical support to the motor
(c) To create the magnetic field
(d) To control the motor speed

Question 10: What happens if the direction of the current in the armature of a DC motor is reversed?

(a) The motor stops working.
(b) The motor reverses its rotation direction.
(c) The motor becomes more efficient.
(d) The motor speed increases.