DC Generators The voltage drop for which of the following types of brush can be expected to be least? Carbon brushes Graphite brushes Metal graphite brushes None of these Carbon brushes Graphite brushes Metal graphite brushes None of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Carbon All of above Soft copper Hard copper Carbon All of above Soft copper Hard copper 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 Speed too high Wrong direction of rotation No residual magnetism Open field Speed too high Wrong direction of rotation No residual magnetism ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Nonferrous material Cast-iron Copper Silicon steel Nonferrous material Cast-iron Copper Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators _____ together are called stray losses. Field copper loss and iron loss Iron and friction losses Copper and iron losses Frictional loss and copper loss Field copper loss and iron loss Iron and friction losses Copper and iron losses Frictional loss and copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Commutator pitch None of the listed here Number of pairs of poles Number of poles Commutator pitch None of the listed here Number of pairs of poles Number of poles ANSWER DOWNLOAD EXAMIANS APP
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