DC Motors The main disadvantage of the Ward-Leonard control method is All of these Low efficiency at high loads High initial cost High maintenance cost All of these Low efficiency at high loads High initial cost High maintenance cost 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 What will happen if the back emf of a dc motor vanishes suddenly? The motor will stop The motor will continue to run The motor will run noisy The armature may burn The motor will stop The motor will continue to run The motor will run noisy The armature may burn ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because None of the listed here It limits the speed of the motor It starts the motor It limits the starting current to a safe value None of the listed here It limits the speed of the motor It starts the motor It limits the starting current to a safe value ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Yoke Armature rotor Armature conductors Commutator Yoke Armature rotor Armature conductors Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Copper losses Eddy current losses Windage losses Hysteresis losses Copper losses Eddy current losses Windage losses Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS