Electrical Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Electrical Machine Design .

If an insulating material is operated beyond the maximum allowable temperature, its life is

A) drastically increased B) drastically reduced C) unaffected D) none of the above

Discuss

Answer & Solution

Answer: Option B

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

Which of the following materials is used in the manufacture of resistance grids to be used in the starters of largemotors ?

A) Copper B) Aluminium C) Steel D) Cast-iron

Discuss

Answer & Solution

Answer: Option D

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

Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to

A) improve its ventilation B) eliminate creeping at no load C) increase its deflecting torque D) increase its braking torque

Discuss

Answer & Solution

Answer: Option B

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

Standard resistor is made from

A) platinum B) maganin C) silver D) nichrome

Discuss

Answer & Solution

Answer: Option B

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

A dynamometer wattmeter can be used for

A) both D.C. and A.C. B) D.C. only C) A.C. only D) any of the above

Discuss

Answer & Solution

Answer: Option A

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

An induction wattmeter can be used for

A) both D.C. and A.C. B) D.C. only C) A.C. only D) any of the above

Discuss

Answer & Solution

Answer: Option C

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

Basically a potentiometer is a device for

A) comparing two voltages B) measuring a current C) comparing two currents D) measuring a voltage E) none of the above

Discuss

Answer & Solution

Answer: Option A

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

A potentiometer may be used for

A) measurement of resistance B) measurement of current C) calibration of ammeter D) calibration of voltmeter E) all of the above

Discuss

Answer & Solution

Answer: Option E

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

When the two coil sides forming a coil are spaced exactly one pole pitch apart they are said to be of

A) short pitch B) full pitch C) either of the above D) none of the above

Discuss

Answer & Solution

Answer: Option B

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

Which of the following methods may be adopted to reduce the effects of armature reaction?

A) Increase in length of air gap at pole tips B) Increasing reluctance of pole tips C) Compensating windings D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

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Electrical Machine Design MCQ Questions & Answers | Electrical Engineering