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Electrician
Electrician Set-1
DC Motors
36

DC Motors MCQ - Electrician (Set-1) with Answers

36) During the normal operation of a DC series motor, if the field winding is suddenly open-circuited, what will be the effect on the motor ?

It will run at slow speed

It wilt run at high speed

It will run at normal speed

It will not run

Answer is:

It will not run

DC Motors MCQ - Electrician (Set-1) with Answers

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Related DC Motors MCQ - Electrician (Set-1) with Answers

37) Which type of motor would you choose for starting the transport vehicles ?

D.C. Series motor

D.C. shunt motor

cumulatively compounded DC motor

differentially compounded DC motor

Answer is:

D.C. Series motor

38) Which type of motor would you choose for starting the transport vehicle ?

DC series motor

DC shunt motor

Separately excited DC motor

DC differentially compound motor

Answer is:

DC series motor

39) The back emf of a DC motor depends on the :

shape of the conductor

field flux

commutator segments

brush material

Answer is:

field flux

40) Calculate the back e.m.f. of a 220 V, D.C Shunt motor. Armature resistance is 0.5 ohm, and armature current is 40 A ?

220 V

210 V

200 V

190 V

Answer is:

200 V

DC Motors MCQ - Electrician (Set-1) with Answers

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