DC Generators The armature winding of a dc machine is place on the rotor to ______ Reduce losses Save iron Reduce armature reaction Facilitate commutation Reduce losses Save iron Reduce armature reaction Facilitate commutation ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Iron loss Stray loss Constant loss Mechanical loss Iron loss Stray loss Constant loss Mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators the polarity of the interpoles Is neutral as these poles do not play part in generating e.m.f. Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is opposite to that of the main pole ahead Is the same as that of the immediately preceding pole Is the same as that of the main pole ahead ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, the brushes on commutator remain in contact with conductors which Lie under South Pole Lie under interpolar region Are farthest from the poles Lie under North Pole Lie under South Pole Lie under interpolar region Are farthest from the poles Lie under North Pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, armature reaction _____ pole tip. Weaknes the flux at the leading Weaknes the flux at the trailing None of the listed here Strengthns the flux at the leading Weaknes the flux at the leading Weaknes the flux at the trailing None of the listed here Strengthns the flux at the leading ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a wave winding, the commutator pitch is approximately equal to Twice the pole pitch Pole pitch Thrice the pole pitch None of the listed here Twice the pole pitch Pole pitch Thrice the pole pitch None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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