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Electrician
Electrician Set-1
DC Motors
38

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

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

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

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

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

41) A 220 V D.C. motor having an armature resistance of 0.2 ohm and back emf 215 V, It draws a current of :

15 amps

20 amps

25 amps

50 amps

Answer is:

25 amps

42) The armature resistance of a DC machine will be in the order of :

750 to 1000 ohms

500 to 750 ohms

10 to 50 ohms

0.1 to 1 ohm

Answer is:

0.1 to 1 ohm

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

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