Electrical Machines Which of the following are variable losses? eddy current loss hysteresis loss armature copper loss shunt field copper loss eddy current loss hysteresis loss armature copper loss shunt field copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on pole faces. rotor shaft. stator frame. None of these pole faces. rotor shaft. stator frame. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 8. 2. 4. 6. 8. 2. 4. 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC shunt and level Compound motor. DC compound motor. DC Shunt motor. DC series motor. DC shunt and level Compound motor. DC compound motor. DC Shunt motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant. 74 Nm. 38.5 Nm. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. 65.8 Nm. 27.73 Nm . ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 60 V. 40 V. 0 V. 20 V. 60 V. 40 V. 0 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
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