Alternators The frequency of emf generated in an 8-pole alternator running at 900 rpm is ______ 60 Hz 120 Hz 50 Hz None of the listed here 60 Hz 120 Hz 50 Hz None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of a salient pole machine is nearly 3000 rpm 1000 rpm 1500 rpm 500 rpm 3000 rpm 1000 rpm 1500 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators An alternator coupled to which primemover will usually have the highest rotating speed? Francis turbine Steam turbine Reciprocating diesel engine Steam engine Francis turbine Steam turbine Reciprocating diesel engine Steam engine 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 The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. The same as None of the listed here Greater than Smaller than The same as None of the listed here Greater than Smaller than 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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