Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged Half One fourth Double Unchanged Half One fourth Double ANSWER DOWNLOAD EXAMIANS APP
Alternators Which harmonic will be totally eliminate in an alternator by using a fractional pitch of 4/5 ? Fifth Seventh Third Ninth Fifth Seventh Third Ninth ANSWER DOWNLOAD EXAMIANS APP
Alternators The number of poles in turbo alternators is usually 2 50 4 12 2 50 4 12 ANSWER DOWNLOAD EXAMIANS APP
Alternators When load on an alternator is increased, the terminal voltage increases if the load pf is ______ Unity Zero Leading Lagging Unity Zero Leading Lagging ANSWER DOWNLOAD EXAMIANS APP
Alternators Voltage regulation of an alternator is usually Much lower than that of power transformer Equal to that of power transformer None of the listed here Much higher than that of a power transformer Much lower than that of power transformer Equal to that of power transformer None of the listed here Much higher than that of a power transformer ANSWER DOWNLOAD EXAMIANS APP
Alternators If the lagging load pf of an alternator is decreased, the demagnetising effect of armature reaction _______ Is increased Remains the same Is decreased None of the listed here Is increased Remains the same Is decreased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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