Electrical Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Electrical Machine Design .

Murray loop test can be used for location of

A) ground fault on a cable B) short circuit fault on a cable C) both the ground fault and the short-circuit fault D) none of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The laminations of the armature of a D.C. machine are usually _____ thick.

A) 0.1 to 0.2 mm B) 0.2 to 0.3 mm C) 0.3 to 0.4 mm D) 0.4 to 0.5 mm

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

For measurement of inductance having high value, we should use

A) Maxwell’s bridge B) Maxwell Wein bridge C) Hay’s bridge D) Any of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

D.C. servomotors are used in

A) Purely D.C. control systems B) Purely AC. control systems C) Both D.C. and AC. control systems D) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

A power factor meter has

A) one current circuit and two pressure circuits B) one current circuit and one pressure circuit C) two current circuits and one pres¬sure circuit D) none of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Helical windings are used in

A) distribution transformers B) power transformers C) shell type transformers D) none of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Transformers with a capacity of up to _____ have a cooling radiator system with natural cooling

A) 2 MVA B) 5 MVA C) 7.5 MVA D) 10 MVA

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In a single phase power factor meter the phase difference between the currents in the two pressure coils is

A) exactly 0° B) approximately 0° C) exactly 90° D) approximately 90°

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In self cooled motors the cooling time constant is about ______ than the heating time constant because cooling conditions are worse at standstill.

A) 2 to 3 times greater B) 3 to 4 times greater C) 4 to 5 times greater D) none of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

100

The power of a n-phase circuit can be measured by using a minimum of

A) (n – 1) wattmeter elements B) n wattmeter elements C) (n + 1) wattmeter elements D) 2n wattmeter elements

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Electrical Machine Design MCQ Questions & Answers | Electrical Engineering