Electrical Machines A dc series motor driving and electric train faces a constant power load. It is running at rated speed and rated voltage. If the speed has to be brought down to 0.25 p.u. the supply voltage has to be approximately brought down to 0.125 p.u 0.5 p.u 0.25 p.u 0.75 p.u 0.125 p.u 0.5 p.u 0.25 p.u 0.75 p.u ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which single phase motor is used for a refrigerator? Capacitor run. Repulsion. Split phase. Universal. Capacitor run. Repulsion. Split phase. Universal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Synchronous motor. Split phase IM. Capacitor start capacitor run IM. Capacitor start IM. Synchronous motor. Split phase IM. Capacitor start capacitor run IM. Capacitor start IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motors are used in food processing All of these traction cranes food processing All of these traction cranes ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of self induction. self or mutual induction. electromagnetic induction. mutual induction. self induction. self or mutual induction. electromagnetic induction. mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 500 to 720. 1440 to 2880. 375 to 500. 720 to 920. 500 to 720. 1440 to 2880. 375 to 500. 720 to 920. ANSWER DOWNLOAD EXAMIANS APP