DC Generators The size of a dc generator can be reduced by using ______ Lap winding Iron commutator Magnetic material of high permeability High resistance winding material Lap winding Iron commutator Magnetic material of high permeability High resistance winding material ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to half of constant loss Equal to double the constant loss None of the listed here Equal to Constant loss Equal to half of constant loss Equal to double the constant loss None of the listed here Equal to Constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Copper brushes Interpole windings Compensating windings Equalisers Copper brushes Interpole windings Compensating windings Equalisers ANSWER DOWNLOAD EXAMIANS APP
DC Generators Open circuited armature coil of a D.C. machine is None of these Both of the listed here Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator None of these Both of the listed here Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Ball bearings Needle bearings Magnetic bearings Bush bearings Ball bearings Needle bearings Magnetic bearings Bush bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Weakened as well as distorted Weakend only None of the listed here Distorted only Weakened as well as distorted Weakend only None of the listed here Distorted only ANSWER DOWNLOAD EXAMIANS APP
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