DC Generators The yoke of a dc machine carries ______ pole flux. None of the listed here One-half of Three times Two times the None of the listed here One-half of Three times Two times the ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Speed too high Open field No residual magnetism Wrong direction of rotation Speed too high Open field No residual magnetism Wrong direction of rotation ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other All of these The brushes of same polarity should track each other Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other All of these The brushes of same polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. The same weight as More weight than Less weight than None of the listed here The same weight as More weight than Less weight than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal speed regulation of their primemovers unequal series field resistances their rising voltage characteristics unequal number of turns in their series field windings unequal speed regulation of their primemovers unequal series field resistances their rising voltage characteristics unequal number of turns in their series field windings 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 the same as that of the immediately preceding pole Is the same as that of the main pole ahead Is opposite to that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the immediately preceding pole Is the same as that of the main pole ahead Is opposite to that of the main pole ahead ANSWER DOWNLOAD EXAMIANS APP
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