DC Motors The main disadvantage of the Ward-Leonard control method is High maintenance cost Low efficiency at high loads High initial cost All of these High maintenance cost Low efficiency at high loads High initial cost All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will burn Motor will not run at all Motor will run at very high speed Motor will run at very slow speed Motor will burn Motor will not run at all Motor will run at very high speed Motor will run at very slow speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Armature conductors Yoke Commutator Armature rotor Armature conductors Yoke Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in Series-parallel with armature Series with armature None of the listed here Parallel with armature Series-parallel with armature Series with armature None of the listed here Parallel with armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like None of these A capacitive circuit A low resistance circuit A highly resistive circuit None of these A capacitive circuit A low resistance circuit A highly resistive circuit ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine None of the listed here To improve commutation To control the speed of machine To reduce armature reaction None of the listed here To improve commutation To control the speed of machine To reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
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