Industrial Drivers MCQ Questions & Answers

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While selecting motor for an air conditioner which of the following characteristics is of great importance?

A) Type of bearings B) Type of enclosure C) Noise D) Arrangement for power transmission

Discuss

Answer & Solution

Answer: Option C

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

Besides a constant speed a synchronous rotor possesses which of the following advantages?

A) Lower cost B) Better efficiency C) High power factor D) All of the above

Discuss

Answer & Solution

Answer: Option C

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

__________ motor is a constant speed motor.

A) Synchronous motor B) Schrage motor C) Induction motor D) Universal motor

Discuss

Answer & Solution

Answer: Option A

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

Is preferred for automatic drives.

A) Squirrel cage induction motor B) Synchronous motors C) Ward Leonard controlled D.C. motors D) Any of the above

Discuss

Answer & Solution

Answer: Option C

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

In ________ the speed can be varied by changing the position of brushes.

A) Slip ring motor B) Schrage motor C) Induction motor D) Repulsion motor

Discuss

Answer & Solution

Answer: Option B

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

Which of the following motors are best for the rolling mills?

A) Single phase motors B) Squirrel cage induction motors C) Slip ring induction motors D) D.C. motors

Discuss

Answer & Solution

Answer: Option D

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

In which of the following applications variable speed operation is preferred?

A) Exhaust fan B) Ceiling fan C) Refrigerator D) Water pump

Discuss

Answer & Solution

Answer: Option B

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

Which of the following motors is usually preferred for kiln drives?

A) Cascade controlled A.C. motor B) Slip ring induction motor C) Three phase shunt wound commutator motor D) Any of the above

Discuss

Answer & Solution

Answer: Option D

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

For crane travel which of the following motors is normally used?

A) Synchronous motor B) D.C. differentially compound motor C) Ward-Leonard controlled D.C. shunt motor D) AC. slip ring motor

Discuss

Answer & Solution

Answer: Option D

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

For a motor-generator set which of the following motors will be preferred?

A) Synchronous motor B) Slip ring induction motor C) Pole changing induction motor D) Squirrel cage induction motor

Discuss

Answer & Solution

Answer: Option A

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

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Industrial Drivers MCQ Questions & Answers | Electrical Engineering