Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: Zero Hz. 25 Hz. 100 Hz. 50 Hz. Zero Hz. 25 Hz. 100 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Differential compound. Shunt. Cummulative compound. Series. Differential compound. Shunt. Cummulative compound. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using V connection. delta connection. zig - zag connection. star connection. V connection. delta connection. zig - zag connection. star connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? American standard association method MMf method ZPF method Synchronous impedance method American standard association method MMf method ZPF method Synchronous impedance method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 2 / 3. 4 / 5. 6 / 7. 5 / 6. 2 / 3. 4 / 5. 6 / 7. 5 / 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 12. 3. 7. 4. 12. 3. 7. 4. ANSWER DOWNLOAD EXAMIANS APP
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