Electrical Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Electrical Machine Design .

The scale of a rectifier instrument is

A) linear B) non-linear C) either (A) or (B) D) neither (A) nor (B)

Discuss

Answer & Solution

Answer: Option A

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

Which of the following in an application of D.C. motors?

A) Traction B) Drives for process industry C) Battery driven vehicles D) Automatic control E) All of the above

Discuss

Answer & Solution

Answer: Option E

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

Most sensitive galvanometer is

A) elastic galvanometer B) vibration galvanometer C) Duddlb galvanometer D) spot ballistic galvanometer

Discuss

Answer & Solution

Answer: Option D

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

Direct water cooling of rotor winding presents

A) No mechanical difficulties B) Lesser mechanical difficulties C) Greater mechanical difficulties D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

According to application, instruments are classified as

A) switch board B) portable C) both (A) and (B) D) moving coil E) moving iron

Discuss

Answer & Solution

Answer: Option C

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

Tractive magnets are operated from

A) a.c. supply B) d.c. supply C) either a.c. or d.c. supply D) none of the above

Discuss

Answer & Solution

Answer: Option C

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

If an instrument has cramped scale for larger values, then it follows

A) square law B) logarithmic law C) uniform law D) none of the above

Discuss

Answer & Solution

Answer: Option B

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

The resistivity of water should not be less than

A) 10 Q m B) 100 Q m C) 1000 Q m D) 2000 Q m

Discuss

Answer & Solution

Answer: Option D

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

In a D.C. machine the current per brush arm should not be more than

A) 100 A B) 200 A C) 300 A D) 400 A

Discuss

Answer & Solution

Answer: Option D

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

The power factor of a single phase load can be calculated if the instruments available are

A) one voltmeter and one ammeter B) one voltmeter, one ammeter and one wattmeter C) one voltmeter, one ammeter and one energy meter D) any of the above

Discuss

Answer & Solution

Answer: Option B

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

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Electrical Machine Design MCQ Questions & Answers | Electrical Engineering