DC Generators The bearings used to support the rotor shafts are generally Bush bearings Needle bearings Ball bearings Magnetic bearings Bush bearings Needle bearings Ball bearings Magnetic bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of D.C. machine winding, number of commutator segments is equal to Number of armature turns Number of armature conductors Number of armature coils Number of armature coil sides Number of armature turns Number of armature conductors Number of armature coils Number of armature coil sides ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 6 pole lap wound generator has 300 conductors, the emf induced per conductor being 5 V. The generated voltage of the generator is _____ 360 V 1500 V 250 V 60 V 360 V 1500 V 250 V 60 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine The brushes of same polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other The brushes of same polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
DC Generators The effect of armature reaction is to Increase the total flux Make the air gap flux uniform Decrease the total flux None of the listed here Increase the total flux Make the air gap flux uniform Decrease the total flux None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is ______ winding. Partly open circuit and partly closed circuit A closed circuit None of the listed here An open circuit Partly open circuit and partly closed circuit A closed circuit None of the listed here An open circuit ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS