Explore topic-wise MCQs in Dc Machines.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Dc Machines knowledge and support exam preparation. Choose a topic below to get started.

1.

BLDC can be used instead ____________

A. Synchronous motor
B. Normal brushed DC motor
C. Induction motor
D. Air motor
Answer» C. Induction motor
Discussion
2.

Typical brushless motor doesn’t have ______________

A. Commutator
B. Permanent magnet
C. Electronic controller
D. Fixed armature
Answer» B. Permanent magnet
Discussion
3.

BLDC can be used instead ___________?

A. Synchronous motor
B. Normal brushed DC motor
C. Induction motor
D. Air motor
Answer» C. Induction motor
Discussion
4.

Typical brushless motor doesn’t have ______________$

A. Commutator
B. Permanent magnet
C. Electronic controller
D. Fixed armature
Answer» B. Permanent magnet
Discussion
5.

Construction of BLDC is exactly similar to the ______________

A. Conventional DC motor
B. Induction motor
C. Permanent magnet synchronous motor
D. Totally different construction
Answer» D. Totally different construction
Discussion
6.

In medical fields which DC motor is widely used?

A. PMDC
B. BLDC
C. Brushed DC motor
D. Cannot be determined
Answer» C. Brushed DC motor
Discussion
7.

In BLDC motor driver module, we do not require ______________

A. SCRs
B. Power transistors
C. FETs
D. Transistors
Answer» E.
Discussion
8.

Which of the following is not an advantage of BLDC motor over conventional DC motor.

A. Less maintenance
B. Long life
C. No risk of explosion or possibility of RF radiation
D. Low cost
Answer» E.
Discussion
9.

By electronic circuitry BLDC can be controlled for both constant and variable torque operation.

A. True
B. False
Answer» B. False
Discussion
10.

In BLDC motor field winding is kept on _______________

A. Stator
B. Rotor
C. Can be placed anywhere
D. Absent
Answer» C. Can be placed anywhere
Discussion