DC Generators In a four-pole D.C. machine Two north poles follow two south poles All the four poles are south poles Alternate poles are north and south All the four poles are north poles Two north poles follow two south poles All the four poles are south poles Alternate poles are north and south All the four poles are north poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Reluctance Flux density Resistance Ampere turns Reluctance Flux density Resistance Ampere turns ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. None of the listed here More weight than The same weight as Less weight than None of the listed here More weight than The same weight as Less weight than ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Carbon All of above Hard copper Soft copper Carbon All of above Hard copper Soft copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Mechanical loss Iron loss Stray loss Constant loss Mechanical loss Iron loss Stray loss Constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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