Electrical Machines Which of the following represents the rotating losses of machine? Eddy current losses Hysteresis losses All of the them Friction and windage losses Eddy current losses Hysteresis losses All of the them Friction and windage losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the armature reaction results in magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. magnetization of inter poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. magnetization of inter poles. demagnetization of leading & magnetization of trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be stiff. hollow. any of these. flexible. stiff. hollow. any of these. flexible. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has maximum efficiency at 3/4 load. The ratio of iron loss and full load copper loss is 9/16. 3/4. 4/3. 16/9. 9/16. 3/4. 4/3. 16/9. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 2 and 1 4 ang 1 4 and 2 2 and 2 2 and 1 4 ang 1 4 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 36° 30° 18° 72° 36° 30° 18° 72° ANSWER DOWNLOAD EXAMIANS APP
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