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Dynamic Braking MCQ Questions & Answers

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




Question 1

Calculate the energy stored in the capacitor if the voltage across the capacitor is 20 V and capacitance value is 2 F.

A. 400 J
B. 200 J
C. 100 J
D. 50 J

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Question 2

Calculate the energy stored in the inductor if the current value is 4 A and inductance value is 1 H.

A. 4 J
B. 2 J
C. 8 J
D. 5 J

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Question 3

Calculate the equivalent inductance when n inductors are connected in series of values L.

A. n2L H
B. nL H
C. .5L H
D. 2 H

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Question 4

Calculate the equivalent resistance when two resistances are connected in series of values 12 ?, 10 ?.

A. 32 ?
B. 22 ?
C. 47 ?
D. 17 ?

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Question 5

Calculate the quality factor for the pure capacitor.

A. inf
B. 0
C. 1
D. 2

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Question 6

Calculate the quality factor for the purely inductive coil.

A. inf
B. 10
C. 3
D. 6

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Question 7

During the open circuit condition, the current is equal to ______

A. 1 A
B. 0 A
C. 4 A
D. 7 A

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Question 8

Full form of WRIM.

A. Wound round induction motor
B. World cage induction motor
C. Wolf cage induction motor
D. Squirrel cage inverter motor

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Question 9

Reactive power is positive in the case of the capacitor.

A. True
B. False

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Question 10

Reactive power is positive in the case of the inductor.

A. True
B. False

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Question 11

The minimum value of the impedance in case of the series RLC network is ___________

A. R
B. 0
C. Xl
D. Xc

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Question 12

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

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

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Question 13

The Thevenin voltage of a dead circuit is zero volts.

A. True
B. False

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Question 14

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 15

Calculate the equivalent resistance when two resistances are connected in series of values 12 Ω, 10 Ω.

A. 32 Ω
B. 22 Ω
C. 47 Ω
D. 17 Ω

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Question 16

During the open circuit condition, the current is equal to ______

A. 1:00 AM
B. 12:00 AM
C. 4:00 AM
D. 7:00 AM

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