Alternators The synchronous reactance of an alternator is generally _______ armature resistance. 10 to 100 times greater than 5 times smaller than 5 times greater than 10 times smaller than 10 to 100 times greater than 5 times smaller than 5 times greater than 10 times smaller than ANSWER DOWNLOAD EXAMIANS APP
Alternators Copper losses of an alternator can be measured by Dc motor Transformer Rectifier None of the listed here Dc motor Transformer Rectifier None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Voltage regulation of an alternator is usually None of the listed here Much higher than that of a power transformer Equal to that of power transformer Much lower than that of power transformer None of the listed here Much higher than that of a power transformer Equal to that of power transformer Much lower than that of power transformer ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Cool the machine Strengthen the magnetic field Reduce eddy current losses Reduce distortion of waveform Cool the machine Strengthen the magnetic field Reduce eddy current losses Reduce distortion of waveform ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of emf generated in an 8-pole alternator running at 900 rpm is ______ None of the listed here 120 Hz 50 Hz 60 Hz None of the listed here 120 Hz 50 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators If the number of poles of an alternator is increased, the generated emf Increases Decreases None of the listed here Remains the same Increases Decreases None of the listed here Remains the same ANSWER DOWNLOAD EXAMIANS APP
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