DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyratron Thyristor Transistor Thermistor Thyratron Thyristor Transistor Thermistor 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 Level compounded Under compounded Cumulatively compounded Differentially compounded Level compounded Under compounded Cumulatively compounded Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Rheostat braking Plugging None of these Regenerative braking Rheostat braking Plugging None of these Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Steel rolling mills Centrifugal pumps Elevators Colliery winders Steel rolling mills Centrifugal pumps Elevators Colliery winders ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Remains same Increase Decrease Become zero Remains same Increase Decrease Become zero ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Dynamic braking Plugging Regenerative None of these Dynamic braking Plugging Regenerative None of these ANSWER DOWNLOAD EXAMIANS APP
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