Electrical Machines If the excitation is increased, the power factor is None of these lagging power factor leading power factor unity power factor None of these lagging power factor leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC compound motor has only series field winding. both shunt and series field winding. only shunt field winding. tertiary winding. only series field winding. both shunt and series field winding. only shunt field winding. tertiary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator copper loss Stator core loss All of these Rotational loss Stator copper loss Stator core loss All of these Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will run in a direction opposite to previous one. continue running in the same direction as before. not run. get damaged. run in a direction opposite to previous one. continue running in the same direction as before. not run. get damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne test is conducted under which of the following condition? any of the above no load full load half load any of the above no load full load half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: pole core. under leading pole tip. under trailing pole tip. under the interpole. pole core. under leading pole tip. under trailing pole tip. under the interpole. ANSWER DOWNLOAD EXAMIANS APP