Electrical Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Electrical Machine Design .

The heated parts of an electrical machine dissipate heat into their surroundings by which of the followingmodes of heat dissipation ?

A) Conduction B) Convection C) Radiation D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

The action of electromagnetic machines can be related to which of the following basic principles ?

A) Induction B) Interaction C) Alignment D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

Which of the following properties a damping oil must possess ?

A) Must be a good insulator B) Should be non-evaporating C) Should not have corrosive action upon the metal of the vane D) The viscosity of the oil should not change with the temperature E) All of the above

Discuss

Answer & Solution

Answer: Option E

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

In transformers using hot rolled steel, the cross-section of the yoke is made about _____ greater than that of the core

A) 5 percent B) 10 percent C) 15 percent D) 30 percent E) none of the above

Discuss

Answer & Solution

Answer: Option C

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

An induction meter can handle current up to

A) 10 A B) 30 A C) 60 A D) 100 A

Discuss

Answer & Solution

Answer: Option D

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

_______ is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?

A) Grey cast-iron B) Cast steel C) High carbon steel D) Stainless steel

Discuss

Answer & Solution

Answer: Option B

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

In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of

A) 0.1 Hz B) 0.25 Hz C) 0.5 Hz D) 1.5 Hz

Discuss

Answer & Solution

Answer: Option C

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

Multiple inlet system of air cooling of turbo-alternators can be used for machines of rating upto

A) 10 MW B) 30 MW C) 60 MW D) 150 MW

Discuss

Answer & Solution

Answer: Option C

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

The household energy meter is

A) an indicating instrument B) a recording instrument C) an integrating instrument D) none of the above

Discuss

Answer & Solution

Answer: Option C

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

100

The flash point of transformer oil should be higher than

A) 40°C B) 60°C C) 80°C D) 104°C

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