Electrical Machines The 3 - Φ induction motor with rotor circuit open will not run. run normally. get over heated. make noise. not run. run normally. get over heated. make noise. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will damage the armature and commutator. all of above. provide execessive voltage drop in line. draw a starting current many times its rated full load current. damage the armature and commutator. all of above. provide execessive voltage drop in line. draw a starting current many times its rated full load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A load of 900 lbs is to be raised with a lift car weighting 855 lbs at a speed of 110 feet per minute, the over balance being 40 % and percentage efficiency 45 %. Find the horse power of the motor without counterweight 150. 160. 170. 180. 150. 160. 170. 180. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Synchronous motor. Split phase IM. Capacitor start IM. Capacitor start capacitor run IM. Synchronous motor. Split phase IM. Capacitor start IM. Capacitor start capacitor run IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The dc motor which can provide zero speed regulation at full load without any controller, is series. cumulative compound. differential compound. shunt. series. cumulative compound. differential compound. shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will run at very high speed. burn. start haunting. run at very low speed. run at very high speed. burn. start haunting. run at very low speed. ANSWER DOWNLOAD EXAMIANS APP
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