DC Generators The critical resistance of the D.C. generator is the resistance of Brushes Load Armature Field Brushes Load Armature Field ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon lubricates and polishes the commutator Contact resistance is decreased None of the listed here Carbon is cheap Carbon lubricates and polishes the commutator Contact resistance is decreased None of the listed here Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Carbon Hard copper All of above Soft copper Carbon Hard copper All of above Soft copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ High resistance winding material Lap winding Iron commutator Magnetic material of high permeability High resistance winding material Lap winding Iron commutator Magnetic material of high permeability ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a simplex wave winding, the number of parallel paths is equal to _____ Numbers of poles in the machine None of the listed here 2 Number of pairs of poles Numbers of poles in the machine None of the listed here 2 Number of pairs of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The nature of armature winding of a dc machine is decided by Front pitch Back pitch None of the listed here Commutator pitch Front pitch Back pitch None of the listed here Commutator pitch ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS