DC Motors A dc motor is still used in industrial applications because it Is simple in construction None of the listed here Is cheap Provides fine speed control Is simple in construction None of the listed here Is cheap Provides fine speed control ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing All of the listed here Armature circuit resistance Aplied voltage Is flux All of the listed here Armature circuit resistance Aplied voltage Is flux ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The armature may burn The motor will run noisy The motor will continue to run The motor will stop The armature may burn The motor will run noisy The motor will continue to run The motor will stop ANSWER DOWNLOAD EXAMIANS APP
DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Frame Commutator Shaft Stator Frame Commutator Shaft Stator ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Decrease speed Increase speed Produce flat characteristics Reduce sparking Decrease speed Increase speed Produce flat characteristics Reduce sparking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current decreases By interpoles When the armature current increases When the field current increases When the armature current decreases By interpoles When the armature current increases When the field current increases ANSWER DOWNLOAD EXAMIANS APP
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