Electrical Machines which of the following losses are negligible in blocked rotor test? mechanical loss copper loss both A and B iron loss mechanical loss copper loss both A and B iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? None of the options. Electromagnets. Both B and C. Permanent magnets. None of the options. Electromagnets. Both B and C. Permanent magnets. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? ZPF method MMf method American standard association method Synchronous impedance method ZPF method MMf method American standard association method Synchronous impedance method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running with a divertor connected across its field winding. If the divertor resistance is reduced then the speed of the motor will increase. become execessively high. remain unaltered. decrease. increase. become execessively high. remain unaltered. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor Decreases. Remains unchanged. Increases. Oscillates around the rated speed. Decreases. Remains unchanged. Increases. Oscillates around the rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on load angle both 1and 2 voltage reactance load angle both 1and 2 voltage reactance ANSWER DOWNLOAD EXAMIANS APP
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