DC Motor Quiz
Authored by NURUL HUSNA BINTI SAARANI (POLIMAS)
Engineering
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of a DC motor?
To convert mechanical energy into electricity
To convert electrical energy into mechanical energy
To stabilize alternating current
To store energy chemically
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the DC motor produces torque?
Commutator
Magnetic field
Armature
Current regulator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of DC motor is suitable for high starting torque?
DC shunt motor
DC series motor
Compound motor
AC motor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main effect when the load on a DC motor increases?
Motor speed increases
Armature current increases
Commutator stops functioning
Input voltage increases
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of carbon brushes in a DC motor?
To cool the armature
To connect the external circuit to the armature via commutator
To prevent reverse current
To absorb motor vibrations
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