Explore topic-wise MCQs in Dc Machines.

This section includes 4 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.

If higher terminal voltage is applied to PMDC what will happen?

A. Speed at 0 torque will be reduced
B. Torque at 0 speed will be reduced
C. Torque at 0 speed will be increased
D. Torque will remain constant
Answer» D. Torque will remain constant
Discussion
2.

PMDC gives better speed regulation than DC shunt motor.

A. True
B. False
Answer» B. False
Discussion
3.

PMDC produces high torque on ______________

A. At low speeds
B. Only at maximum speed
C. Torque is constant
D. Cannot say
Answer» B. Only at maximum speed
Discussion
4.

Speed-torque characteristic of PMDC motors is _______________

A. Starting from zero increasing continuously
B. Starting from some positive value and remaining constant
C. Starting from some positive value and decreasing exponentially
D. Starting from some positive value and decreasing on straight line
Answer» E.
Discussion