DC Motors In variable speed motor None of these Same commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed None of these Same commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because It limits the speed of the motor None of the listed here It starts the motor It limits the starting current to a safe value It limits the speed of the motor None of the listed here It starts the motor It limits the starting current to a safe value ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. series motor Induction motor Reluctance motor C. shunt motor C. series motor Induction motor Reluctance motor C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Pumping sets Air compressors Electric traction Machine shops Pumping sets Air compressors Electric traction Machine shops ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Transistor Thyratron Thermistor Thyristor Transistor Thyratron Thermistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A highly resistive circuit A capacitive circuit None of these A low resistance circuit A highly resistive circuit A capacitive circuit None of these A low resistance circuit ANSWER DOWNLOAD EXAMIANS APP
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