Electrical Machines An auto transformer having a transformation ratio of 0.8 supplies a load pf 10 KW. The power transfered inductively from the primary to secondary is 0. 2 KW. 8 KW. 10 KW. 0. 2 KW. 8 KW. 10 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in none of above. in both machines. synchronous motor. induction motor. none of above. in both machines. synchronous motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on temperature difference. air velocity. surface area. color of the paint. temperature difference. air velocity. surface area. color of the paint. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant current control constant power control constant voltage control constant torque control constant current control constant power control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are low and high low and low high and high high and low low and high low and low high and high high and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 220 volt. 440 volt. 230 volt. 240 volt. 220 volt. 440 volt. 230 volt. 240 volt. ANSWER DOWNLOAD EXAMIANS APP
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