DC Generators The commutator of a dc generator acts as An amplifier A load A rectifier None of the listed here An amplifier A load A rectifier None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Open field Wrong direction of rotation No residual magnetism Speed too high Open field Wrong direction of rotation No residual magnetism Speed too high ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 0.5 m 0.005 mm 5 m 0.05 mm 0.5 m 0.005 mm 5 m 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Insulating varnish Paper Graphite Mica Insulating varnish Paper Graphite Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is 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 Less than electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Soft copper Hard copper All of above Carbon Soft copper Hard copper All of above Carbon ANSWER DOWNLOAD EXAMIANS APP
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