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DC Motors

DC Motors
A dc series motor is most suitable for

Cranes
Punch presses
Lathes
Pump

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DC Motors
The value of back emf in dc motor is maximum at

Full load
Half full load
None of the listed here
No load

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DC Motors
If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking

None of these
Plugging
Regenerative
Dynamic braking

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DC Motors
The commutating winding is basically used in a dc machine

None of the listed here
To reduce armature reaction
To improve commutation
To control the speed of machine

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DC Motors
The variable resistor shunting the field of a dc series motor is called a

Armature divertor
Voltage regulator
Potential divider
Field divertor

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DC Motors
By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor?

Shaft
Stator
Frame
Commutator

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MORE MCQ ON DC Motors

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