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Electrician
Electrician Set-2
AC Three Phase Motor
37

AC Three Phase Motor MCQ with Answers

37) Calculate the number of coils /phase/ pole for a 3 phase double layer distributed winding for a motor having 36 slots, 36 coils and 4 poles?

3 coils /phase/ pole

6 coils / phase/pole

9 coils / phase/pole

12 coils/ phase/ pole

Answer is:

3 coils /phase/ pole

AC Three Phase Motor MCQ with Answers

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Related AC Three Phase Motor MCQ with Answers

38) Which type of starter is used to start and run the 3 phase slip ring induction motor?

Direct on-line starter

Rotor rheostat starter

Auto transformer starter

Manual star-delta starter

Answer is:

Rotor rheostat starter

39) Which type of winding wire is used to wind submersible pump motors?

PVC covered type

Terylene thread type

Super enamelled type

Double cotton covered type

Answer is:

PVC covered type

40) What is the reason of long chord winding is avoided in AC motors?

Low efficiency

Low starting torque

More winding wire required

Less heat dissipation

Answer is:

More winding wire required

41) Which type of winding has more space for cooling?

Between overhanging coils

Between overhanging coil and rotor

Between overhanging coils and yoke

Between overhanging coil and wedge

Answer is:

Between overhanging coils and yoke

AC Three Phase Motor MCQ with Answers

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