DC Motors In a dc motor constant torque is produced due to Commutator Pole shoes Rotor laminations End plates Commutator Pole shoes Rotor laminations End plates ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it 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 Is simple in construction ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging Rheostat braking Regenerative braking None of these Plugging Rheostat braking Regenerative braking None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be Less than 50% 100 % 80 to 90 % 60 to 70 % Less than 50% 100 % 80 to 90 % 60 to 70 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is that which Has almost constant speed Can be started easily without load Has its field winding consisting of thick wire and less turns Has a poor torque Has almost constant speed Can be started easily without load Has its field winding consisting of thick wire and less turns Has a poor torque ANSWER DOWNLOAD EXAMIANS APP
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