Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. None of the listed here The same as Smaller than Greater than None of the listed here The same as Smaller than Greater than ANSWER DOWNLOAD EXAMIANS APP
Alternators The ac armature winding of an alternator is _______ Star-delta connected None of the listed here Generally delta connected Always star connected Star-delta connected None of the listed here Generally delta connected Always star connected ANSWER DOWNLOAD EXAMIANS APP
Alternators Three phase alternators are invariably star commected because Small conductors can be used Less turns of wire are required Magnetic losses are the minimum Higher terminal voltage is obtained Small conductors can be used Less turns of wire are required Magnetic losses are the minimum Higher terminal voltage is obtained ANSWER DOWNLOAD EXAMIANS APP
Alternators The salient pole construction for field structure of an alternator is generally used for ______ machine. 4-pole 8-pole 2-pole None of the listed here 4-pole 8-pole 2-pole None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Reduce eddy current losses Cool the machine Reduce distortion of waveform Strengthen the magnetic field Reduce eddy current losses Cool the machine Reduce distortion of waveform Strengthen the magnetic field ANSWER DOWNLOAD EXAMIANS APP
Alternators The distribution of load between two alternators operating in parallel can be changed by changing ______ Driving torques of prime movers Field excitation of alternators None of the listed here Phase sequence Driving torques of prime movers Field excitation of alternators None of the listed here Phase sequence ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS