DC Motors The variable resistor shunting the field of a dc series motor is called a Voltage regulator Potential divider Field divertor Armature divertor Voltage regulator Potential divider Field divertor Armature divertor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens Motor will run at very slow speed This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor Motor will run at very slow speed This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Commutator Pole shoes Rotor laminations End plates Commutator Pole shoes Rotor laminations End plates ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Trains Cranes Machine tools Hoist Trains Cranes Machine tools Hoist ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motor has the best speed regulation. Cummulative compounded Series Shunt Differentially compounded Cummulative compounded Series Shunt Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? All of these Full-load current Starting torque Operating speed All of these Full-load current Starting torque Operating speed ANSWER DOWNLOAD EXAMIANS APP
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