Electrical Machines Which of the following represents the rotating losses of machine? Eddy current losses Hysteresis losses Friction and windage losses All of the them Eddy current losses Hysteresis losses Friction and windage losses All of the them ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC shunt motor by varying field flux, what may be the value of field regulator? 100 ohm 10 ohm 0.2 ohm 2 ohm. 100 ohm 10 ohm 0.2 ohm 2 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in open circuit. increase in slip. reduction in generated emf. short circuit. open circuit. increase in slip. reduction in generated emf. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/Vt ratio of a DC motor is an indication of efficiency. running torque. starting torque. speed regulation. efficiency. running torque. starting torque. speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using star connection. V connection. zig - zag connection. delta connection. star connection. V connection. zig - zag connection. delta connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is zero 0.707 lagging unity R = S.X 0.5 lagging zero 0.707 lagging unity R = S.X 0.5 lagging ANSWER DOWNLOAD EXAMIANS APP
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