Electrical Machines The power factor of squirrel cage induction motor is low at light loads only low at rated load only low at heavy loads only both A and B low at light loads only low at rated load only low at heavy loads only both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Silicon content in steel lamination is kept within 5% as it Increases cost. increases hysteresis loss. All of these makes the material brittle. Increases cost. increases hysteresis loss. All of these makes the material brittle. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is finite value 1 0 infinite value finite value 1 0 infinite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be plugging. crawling. locking. cogging. plugging. crawling. locking. cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 13.5 A. 11.5 A. 23 A. 27 A. 13.5 A. 11.5 A. 23 A. 27 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are nullify reactance voltage and improve the commutation. None of these both 1 and 2 reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. None of these both 1 and 2 reduce cross magnetization effect and improve commutation ANSWER DOWNLOAD EXAMIANS APP