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Dynamic Braking - Electric Drives MCQs

Dynamic Braking MCQs : This section focuses on the "Dynamic Braking" in Electric Drives. These Multiple Choice Questions (MCQ) should be practiced to improve the Electric Drives skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

____________ is the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive.

A. Regenerative Braking
B. Dynamic braking
C. Countercurrent Braking
D. All of the above

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Question 2

Dynamic braking _________ wear on friction-based braking components.

A. increases
B. no effect
C. reduces
D. can not say

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Question 3

Dynamic braking used on ?

A. hybrid electric automobiles
B. trolleybuses
C. electric trams
D. All of the above

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Question 4

Which braking method is the best method for obtaining high braking torque?

A. Regenerative braking
B. Plugging
C. Dynamic braking
D. Rheostatic braking

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Question 5

How many main methods of managing the electricity generated during dynamic braking?

A. 2
B. 3
C. 4
D. 5

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Question 6

For permanent magnet motors, dynamic braking is easily achieved by shorting the motor terminals.

A. TRUE
B. FALSE
C. Can be true or false
D. can not say

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Question 7

Full form of SCIM.

A. Squirrel cage inverter motor
B. Solid cage induction motor
C. Square cage induction motor
D. Squirrel cage induction motor

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Question 8

The polarity of back e.m.f changes in which of the method?

A. Regenerative braking
B. Dynamic braking
C. Plugging
D. Rheostatic braking

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Question 9

Reactive power is positive in the case of the inductor.

A. TRUE
B. FALSE
C. Can be true or false
D. can not say

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Question 10

Reactive power is positive in the case of the capacitor

A. TRUE
B. FALSE
C. Can be true or false
D. can not say

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