DC Generators The armature core of a D.C. generator is usually made of Silicon steel Nonferrous material Copper Cast-iron Silicon steel Nonferrous material Copper Cast-iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? No residual magnetism Wrong direction of rotation Open field Speed too high No residual magnetism Wrong direction of rotation Open field Speed too high ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 40 percent 25 percent 10 percent 5 percent 40 percent 25 percent 10 percent 5 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? Carbon brushes None of these Graphite brushes Metal graphite brushes Carbon brushes None of these Graphite brushes Metal graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is 4 6 8 2 4 6 8 2 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ None of the listed here Both electrical and magnetic fields Electric field Magnetic field None of the listed here Both electrical and magnetic fields Electric field Magnetic field ANSWER DOWNLOAD EXAMIANS APP
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