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Electrician
Electrician Set-1
DC Motors
8

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

8) In a shunt motor, a starter is used for :

speed control

back e.m.f. control

applied e.m.f. control

current control in the start

Answer is:

current control in the start

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

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

9) The rotating part of a d.c. motor is known as :

pole

stator

rotor

armature

Answer is:

armature

The rotating part of a d.c. motor is known as :

10) In a d.c. machine, a dummy coil is used to :

eliminate reactance voltage

eliminate armature reaction

create a mechanical balance in the armature

eliminate vibrations of the machine

Answer is:

create a mechanical balance in the armature

11) The rotational speed of a d.c. shunt motor can be increased above its full speed by :

increasing the armature current

decreasing the armature current

increasing the field current

decreasing the field current

Answer is:

decreasing the field current

12) On increasing the load of a d.c. shunt motor, its speed will :

remain constant

increase proportionately

increase slightly

reduce slightly

Answer is:

reduce slightly

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

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