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.

In dynamic braking, when braking is applied system acts as ___________

A. Freely running machine
B. Motor with slow speed
C. Generator
D. Motor with same speed in opposite direction
Answer» D. Motor with same speed in opposite direction
Discussion
2.

Braking time in the dynamic braking is the function of _____________

A. System inertia
B. Load torque
C. Motor rating
D. All- system inertia, load torque and motor rating
Answer» E.
Discussion
3.

Plugging is used in ____________

A. Small motors only
B. Small and medium powered
C. Only in large heavy machines
D. Everywhere
Answer» B. Small and medium powered
Discussion
4.

Plugging is applied in a motor, if we don t make the switch OFF what will happen?

A. Motor will come to rest as a result of plugging
B. Motor will come to rest and will start rotating in another direction
C. Motor will burn
D. Nothing will happen
Answer» C. Motor will burn
Discussion