DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Magnetic field Electric field None of the listed here Both electrical and magnetic fields Magnetic field Electric field None of the listed here Both electrical and magnetic fields ANSWER DOWNLOAD EXAMIANS APP
DC Generators For a D.C. machines laboratory following type of D.C. supply will be suitable Synchronous motor D.C. generator set Mercury are rectifier Induction motor D.C. generator set Rotary converter Synchronous motor D.C. generator set Mercury are rectifier Induction motor D.C. generator set Rotary converter ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ Lap winding Magnetic material of high permeability High resistance winding material Iron commutator Lap winding Magnetic material of high permeability High resistance winding material Iron commutator ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a None of the listed here Hydrobola Straight line Parabola None of the listed here Hydrobola Straight line Parabola ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator? Equalizer rings Commutator Eye bolt Dummy coils Equalizer rings Commutator Eye bolt Dummy coils ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine The brushes of opposite polarity should track each other Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these The brushes of opposite polarity should track each other Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these ANSWER DOWNLOAD EXAMIANS APP
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