Electrical Machines The heat generated in the transformer is dissipated mainly by radiation. All of these conduction. convection. radiation. All of these conduction. convection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in synchronous motor. none of above. induction motor. in both machines. synchronous motor. none of above. induction motor. in both machines. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Mechanical power. Induced emf. Can not be determined. Armature current. Mechanical power. Induced emf. Can not be determined. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the armature will oscillate about original speed as the mean speed motor will become slow. motor will attain dangerously high speed armature current will drop armature will oscillate about original speed as the mean speed motor will become slow. motor will attain dangerously high speed armature current will drop ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on stationary magnetic field. either of these. rotating magnetic field. None of these stationary magnetic field. either of these. rotating magnetic field. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Not run. Run at lower speed. Burn. Run at normal speed. Not run. Run at lower speed. Burn. Run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
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