Electrical Machines During no load test, an induction motor draws power only for the small copper loss. for copper loss and windage friction loss. for core loss and copper loss. for core loss and windage and friction loss. only for the small copper loss. for copper loss and windage friction loss. for core loss and copper loss. for core loss and windage and friction loss. 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 11.5 A. 27 A. 13.5 A. 23 A. 11.5 A. 27 A. 13.5 A. 23 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC generators has rising V-I characteristics? Compound. Series. Shunt. None of them. Compound. Series. Shunt. None of them. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determined by Lenz's law. Fleming's right hand rule. Ampere's law. Fleming's left hand rule. Lenz's law. Fleming's right hand rule. Ampere's law. Fleming's left hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 700 W 625 W 600 W 650 W 700 W 625 W 600 W 650 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at over load. copper loss at any load. copper loss at half load. copper loss at full load. copper loss at over load. copper loss at any load. copper loss at half load. copper loss at full load. ANSWER DOWNLOAD EXAMIANS APP
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