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Electrician
Electrician Set-1
DC Motors
66

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

66) In D.C. motor the back e.m.f. is directly proportional to :

flux

speed

no. of armature conductors

no. of poles

Answer is:

speed

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

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

67) The turning (or) twisting moment of force about an axis is called as :

speed

momentum

torque

velocity

Answer is:

torque

68) The turning or twisting moment of a force is called :

torque

speed

power

velocity

Answer is:

torque

69) The starting resistance of 3 point starter in D.C. motor is connected with :

parallel across the armature

series with the armature

parallel across the field winding

series with the field winding

Answer is:

series with the armature

70) In a four point starter the protective resistor is connected in series with :

overload coil

no volt coil

armature

shunt field

Answer is:

no volt coil

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

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