DC Generators The armature winding of a dc machine is place on the rotor to ______ Reduce losses Facilitate commutation Reduce armature reaction Save iron Reduce losses Facilitate commutation Reduce armature reaction Save iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Magnetic bearings Bush bearings Needle bearings Ball bearings Magnetic bearings Bush bearings Needle bearings Ball bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The critical resistance of the D.C. generator is the resistance of Load Field Brushes Armature Load Field Brushes Armature ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine 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 The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
DC Generators Wave wound generators provide More current but less voltage Less current but more voltage None of the listed here More current and more voltage More current but less voltage Less current but more voltage None of the listed here More current and more voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature reaction in a dc generator can be increased by increasing the Field current None of the listed here Armature current Data is insufficient Field current None of the listed here Armature current Data is insufficient ANSWER DOWNLOAD EXAMIANS APP
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