DC Motors The speed of a series motor at no load is 1000 rpm 2000 rpm Infinity 4000 rpm 1000 rpm 2000 rpm Infinity 4000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To reduce the sparking To reduce the generated emf To increase the generated emf To improve cooling To reduce the sparking To reduce the generated emf To increase the generated emf To improve cooling ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Full load None of the listed here No load Half full load Full load None of the listed here No load Half full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Windage loss Friction loss Copper loss Core loss Windage loss Friction loss Copper loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Under compounded Level compounded Cumulatively compounded Differentially compounded Under compounded Level compounded Cumulatively compounded Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyristor Thyratron Thermistor Transistor Thyristor Thyratron Thermistor Transistor ANSWER DOWNLOAD EXAMIANS APP
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