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Electrical Drives and Controls (EDC) MCQs | Page - 16

Dear candidates you will find MCQ questions of Electrical Drives and Controls (EDC) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

M

Mr. Dubey • 51.43K Points
Coach

Q. 151) Concentrated winding differ from distributed winding with the concern of

(A) identical magnetic axis
(B) two magnetic axis
(C) no magnetic axis
(D) physical spacing
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Mr. Dubey • 51.43K Points
Coach

Q. 152) We can place closed windings in

(A) ac commutator machine
(B) stepper motor
(C) ac machine
(D) dc machine
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M

Mr. Dubey • 51.43K Points
Coach

Q. 153) Which of the following machines can be used to place open slot winding?

(A) ac machine
(B) ac commutator machine, ac machine
(C) dc machines
(D) all of the mentioned
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M

Mr. Dubey • 51.43K Points
Coach

Q. 154) The simplex lap winding has the range of winding pitch of  

(A) (-2,2)
(B) (-1,1)
(C) more than 2
(D) less than 1
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M

Mr. Dubey • 51.43K Points
Coach

Q. 155) A 200V dc machine has 4 poles and 40 coils, having simplex lap winding. The number of commutator segments which required in the given machine will be?

(A) 40
(B) 20
(C) 80
(D) 26
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M

Mr. Dubey • 51.43K Points
Coach

Q. 156) Commutator segments in a DC shunt machine is equal to the number of  

(A) coil sides
(B) turns
(C) coils
(D) slots
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Mr. Dubey • 51.43K Points
Coach

Q. 157) We can employ dummy coils in a DC machine to  

(A) compensate reactance voltage
(B) reduce armature reaction
(C) provide mechanical balance to the armature
(D) improve the waveforms generated inside the commutator
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M

Mr. Dubey • 51.43K Points
Coach

Q. 158) In AC machines we should prefer double layer winding over single layer windings because  

(A) it requires identical coils
(B) it is economical to use
(C) it offers lower leakage reactance
(D) all of the mentioned
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M

Mr. Dubey • 51.43K Points
Coach

Q. 159) For an electrical machine with C number of coils and P poles, the distance between the coils connected by an equalizer ring is?

(A) c/p
(B) c/2
(C) 2c/p
(D) c/2p
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M

Mr. Dubey • 51.43K Points
Coach

Q. 160) With a P-pole DC machine with armature current Ia, the current per brush arm for a lap connected windings is?

(A) ia/p
(B) ia/2p
(C) 2ia/p
(D) ia/4p
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