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AC 3 Phase Induction motor
14

AC 3 Phase Induction motor MCQ with Answers

14) Which type of starter is recommended to start upto 3 HP squirrelcage induction motors?

DOL starter

Auto transfer starter

Star-delta starter

Rotor resistance starter

Answer is:

DOL starter

AC 3 Phase Induction motor MCQ with Answers

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Related AC 3 Phase Induction motor MCQ with Answers

15) Which starter is in simple expensive and easy to start?

Rotor resistance starter

DOL starter

Semi automatic star delta starter

Auto transformer starter

Answer is:

DOL starter

16) Which device in DOL starter provides effective protection against over load?

Holding coil

Back up fuse

Thermal relay

Push button switch

Answer is:

Thermal relay

17) How many number of contactors are used in a semi automatic star delta starter?

6

4

5

3

Answer is:

3

18) Which is the additional device used in automatic star delta starter than semi automatic star delta starter?

Push button station

Timer

OLR

Number of contacts

Answer is:

Timer

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