DC Generators In a wave winding, the commutator pitch is approximately equal to Pole pitch None of the listed here Twice the pole pitch Thrice the pole pitch Pole pitch None of the listed here Twice the pole pitch Thrice the pole pitch 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 Carbon is cheap None of the listed here Carbon lubricates and polishes the commutator Contact resistance is decreased Carbon is cheap None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators For the same rating, a dc machine has_______ an ac machines. Less weight than More weight than None of the listed here The same weight as Less weight than More weight than None of the listed here The same weight as ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 1 Ω 0.025 Ω 0.055 Ω 0.5 Ω 1 Ω 0.025 Ω 0.055 Ω 0.5 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 Hz will be of 5 xiVHz will be of v Hz 5 will be zero will be of 5 Hz will be of 5 xiVHz will be of v Hz 5 will be zero ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Insulating varnish Graphite Paper Mica Insulating varnish Graphite Paper Mica ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS