Electrical Machines Transformer cooling and insulating oil must be of high viscosity. low BDV. low viscosity. low resistivity. high viscosity. low BDV. low viscosity. low resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is critical, the power factor of the alternator is None of these lagging power factor. unity power factor. leading power factor. None of these lagging power factor. unity power factor. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are 1000 rpm, 950 rpm. zero, 950 rpm. zero , - 50 rpm. 1000 rpm, - 50 rpm. 1000 rpm, 950 rpm. zero, 950 rpm. zero , - 50 rpm. 1000 rpm, - 50 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator can be considered as rotating amplifier. power pump. prime mover. rectifier. rotating amplifier. power pump. prime mover. rectifier. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 375 to 500. 720 to 920. 1440 to 2880. 500 to 720. 375 to 500. 720 to 920. 1440 to 2880. 500 to 720. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Series motor. Differential compound motor. Shunt motor. Cumulative compound motor. Series motor. Differential compound motor. Shunt motor. Cumulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
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