Electrical Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Electrical Machine Design .

The switch board instruments

A) should be mounted in vertical position B) should be mounted in horizontal position 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

The heat dissipating capability of transformers of ratings higher than 30 kVA in increased by providing which of the following?

A) Corrugations B) Fins C) Tubes D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

The distance between the starts of two consecutive coils measured in terms of coil sides is called

A) front pitch B) winding pitch C) commutator pitch D) back pitch

Discuss

Answer & Solution

Answer: Option B

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

In a 3-phase power measurement by two wattmeter method, both the watt meters had identical readings. The power factor of the load was

A) unity B) 0.8 lagging C) 0.8 leading D) zero

Discuss

Answer & Solution

Answer: Option A

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

E.m.f. of a Weston cell is accurately measured by

A) electrostatic voltmeter B) hot wire voltmeter C) isothermal voltmeter D) electrodynamic voltmeter

Discuss

Answer & Solution

Answer: Option A

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

D.C. windings are

A) sometimes 2-layer type B) never 2-layer type C) always 2-layer type D) none of the above

Discuss

Answer & Solution

Answer: Option C

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

The design of electromagnets is based upon which of the following fundamental equations ?

A) Force equation B) Magnetic circuit equation C) Heating equation D) Voltage equation E) All of the above

Discuss

Answer & Solution

Answer: Option E

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

The disc of an instrument using eddy current damping should be of

A) conducting and magnetic material B) non-conducting and magnetic material C) conducting and non-magnetic material D) none of the above

Discuss

Answer & Solution

Answer: Option C

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

For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?

A) 1.0 Wb/m² B) 1.1 Wb/m² C) 1.3 Wb/m² D) 1.6 Wb/m² E) None of the above

Discuss

Answer & Solution

Answer: Option D

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

________ cooling is the process of dissipating the armature and field winding losses to a cooling medium circulating within the winding insulation wall

A) Direct B) Indirect C) Conventional D) Any of the above

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