DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven 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 Also runs as a motor comes to stop after sometime Does not run as a generator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Series-parallel with the armature Parallel with the armature Series with the armature None of the listed here Series-parallel with the armature Parallel with the armature Series with the armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Opposes the applied voltage None of the listed here Aids the applied voltage Aids the armature current Opposes the applied voltage None of the listed here Aids the applied voltage Aids the armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Yoke Commutator Armature rotor Armature conductors Yoke Commutator Armature rotor Armature conductors ANSWER DOWNLOAD EXAMIANS APP
DC Motors Motor starter are essential for Starting the motor Avoiding excessive starting current Preventing fuse blowing Accelerating the motor Starting the motor Avoiding excessive starting current Preventing fuse blowing Accelerating the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 60 to 70 % 80 to 90 % 100 % Less than 50% 60 to 70 % 80 to 90 % 100 % Less than 50% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS