DC Motors The commutating winding is basically used in a dc machine To control the speed of machine To improve commutation To reduce armature reaction None of the listed here To control the speed of machine To improve commutation To reduce armature reaction None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Regenerative Plugging None of these Dynamic braking Regenerative Plugging None of these Dynamic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it None of the listed here Is simple in construction Is cheap Provides fine speed control None of the listed here Is simple in construction Is cheap Provides fine speed control ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to 100% of the previous value 50% of the previous value 25% of the previous value 10% of the previous value 100% of the previous value 50% of the previous value 25% of the previous value 10% of the previous value ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Also runs as a motor comes to stop after sometime Does not run as a generator Runs as a generator None of these Also runs as a motor comes to stop after sometime Does not run as a generator Runs as a generator None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Cranes and hoists Machine tools None of the listed here Shear and punches Cranes and hoists Machine tools None of the listed here Shear and punches ANSWER DOWNLOAD EXAMIANS APP
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