DC Motor MCQ with Answers

DC Motor MCQ with Answers

41) Which speed control method is used in food mixture motors?

Answer is:

Series field tapping method

42) Which speed control system provides a smooth variation of speed from zero to above normal?

Answer is:

Ward-Leonard system control

43) What is the purpose of tapes in winding?

Answer is:

Wrap the conductor

44) Which type of DC armature winding the front pitch (Y_F) is greater than back pitch (Y_B)?

Answer is:

Retrogressive winding

45) What reduces the cross sectional area of core material for VA rating?

Answer is:

High alloy sheet