DC Generators If the flux per pole of dc generator is halved but its speed is doubled, its generated emf will Be doubled Be halved Be quadrupled Remain the same Be doubled Be halved Be quadrupled Remain the same ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Reluctance Ampere turns Flux density Resistance Reluctance Ampere turns Flux density Resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators Number of tapings for each equalizer ring is equal to Number of pole pairs Number of parallel paths Number of poles Number of commutator segments Number of pole pairs Number of parallel paths Number of poles Number of commutator segments ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Facilitate commutation Reduce armature reaction Reduce losses Save iron Facilitate commutation Reduce armature reaction Reduce losses Save iron ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS