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Dear candidates you will find MCQ questions of Electrical and Electronics Engineering 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) The armature winding of a dc machine is place on rotor to_____.

(A) save iron
(B) reduce losses
(C) improve commutation
(D) reduce armature reaction
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Mr. Dubey • 51.43K Points
Coach

Q. 152) The yoke of a dc machine carries ____pole flux.

(A) the
(B) one-half of
(C) two times the
(D) none of the above
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Mr. Dubey • 51.43K Points
Coach

Q. 153) A 4-pole dc machine has ____ magnetic circuits.

(A) 2
(B) 8
(C) 4
(D) none of above
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M

Mr. Dubey • 51.43K Points
Coach

Q. 154) The field structure of a dc machine uses ____.

(A) salient pole arrangement
(B) non-salient pole arrangement
(C) both a and b
(D) none of the above
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M

Mr. Dubey • 51.43K Points
Coach

Q. 155) ____ together are called stray losses

(A) copper and iron losses
(B) iron and mechnical losses
(C) field copper and iron losses
(D) frictional and copper losses
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M

Mr. Dubey • 51.43K Points
Coach

Q. 156) The armature conductors of 6 pole, lap wound D.C. generator are divided into

(A) 2 parallel paths
(B) 4 parallel paths
(C) 3 parallel paths
(D) 6 parallel paths
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M

Mr. Dubey • 51.43K Points
Coach

Q. 157) A 30W, 300V D.C. shunt genrator has armature and field resistances of 0.05Ω and 100Ω respectively. What is generated e.m.f.?

(A) 295.25v
(B) 311.25v
(C) 305.15v
(D) none of the above
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Mr. Dubey • 51.43K Points
Coach

Q. 158) The commutator of D.C. geenrator acts as ___

(A) an amplifier
(B) a rectifier
(C) a load
(D) none of the above
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M

Mr. Dubey • 51.43K Points
Coach

Q. 159) A 4 pole , lap wound D.C. shunt generator has an armature winding consisting of 220 turns each of 0.004Ω. The armature resistance is ___

(A) 0.5Ω
(B) 1Ω
(C) 0.025Ω
(D) 0.055Ω
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M

Mr. Dubey • 51.43K Points
Coach

Q. 160) Wave wound genrators provide

(A) less current but more voltage
(B) more current but less voltage
(C) more current but less voltage
(D) none of the above
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