DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Yoke Commutator Armature conductors Armature rotor Yoke Commutator Armature conductors ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Potential divider Armature divertor Voltage regulator Field divertor Potential divider Armature divertor Voltage regulator Field divertor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 4.0 1.0 2.0 0.5 4.0 1.0 2.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by Field excitation Armature reaction None of the listed here Load Field excitation Armature reaction None of the listed here Load ANSWER DOWNLOAD EXAMIANS APP
DC Motors Motor starter are essential for Accelerating the motor Preventing fuse blowing Starting the motor Avoiding excessive starting current Accelerating the motor Preventing fuse blowing Starting the motor Avoiding excessive starting current ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop This will make armature to take heavy current, possibly burning it Nothing will happen to motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop This will make armature to take heavy current, possibly burning it Nothing will happen to motor ANSWER DOWNLOAD EXAMIANS APP
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