Electrical Engineering MCQs

Electrical Machines Questions with solutions MCQs

1. Correct about induction motor?

A

Single-phase induction high starting torque

B

Single-phase low starting torque

C

Power factor of single-phase more than 3-phase

D

All

Electrical Machines JKP Telcom 2024
Correct Answer : B
Explanation :

Single-phase has low starting torque compared to 3-phase.

Correct Answered :

Wrong Answered :

2. Which is correct for induction motor?

A

Speed=0

B

Slip=0

C

Speed=synchronous

D

Slip<0

Electrical Machines JKP Telcom 2024
Correct Answer : B
Explanation :

At synchronous speed, slip=0.

Correct Answered :

Wrong Answered :

3. If supply voltage of 3-phase induction motor ? 2 times, torque?

A

Twice

B

Four times

C

1/2

D

Same

Electrical Machines JKP Telcom 2024
Correct Answer : B
Explanation :

Torque ? V?. Doubling V makes torque 4 times.

Correct Answered :

Wrong Answered :

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