Electrical Machines Voltage regulation of transformer is given by (V2 - E2) / E2 (E2 - V2) / E2 (E2 - V2) / V2 (V2 - E2) / V2 (V2 - E2) / E2 (E2 - V2) / E2 (E2 - V2) / V2 (V2 - E2) / V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is used in elevators? None of these. DC series motor. DC shunt motor. DC compound motor. None of these. DC series motor. DC shunt motor. DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf in a dc machine is 1. stationary with respect to field poles 2. stationary with respect to armature 3. rotating with respect to field poles 4. rotating with respect to armature From these, the correct answer is 1, 4 2, 3 1, 3 2, 4 1, 4 2, 3 1, 3 2, 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure capacitive load pure inductive load pure resistive load None of these pure capacitive load pure inductive load pure resistive load None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant torque. current. power. speed. torque. current. power. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The primary and secondary windings of a transformer are conductively linked. mechanically linked. inductively linked. electrically linked. conductively linked. mechanically linked. inductively linked. electrically linked. ANSWER DOWNLOAD EXAMIANS APP
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