Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 3000 rpm. 1500 rpm. 3600 rpm. 4000 rpm. 3000 rpm. 1500 rpm. 3600 rpm. 4000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors are suitable for computer printer drive ? Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 35 ppm. 45 ppm. 25 ppm. 20 ppm. 35 ppm. 45 ppm. 25 ppm. 20 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will start haunting. burn. run at very high speed. run at very low speed. start haunting. burn. run at very high speed. run at very low speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Vacuum. Oil impregnated paper. Glass. Mica. Vacuum. Oil impregnated paper. Glass. Mica. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Shunt field of DC generators consists of--------number of turns and ---------- conductors respectively large and thick large and thin less and thick less and thin large and thick large and thin less and thick less and thin ANSWER DOWNLOAD EXAMIANS APP
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