DC Generators The brush voltage drop in dc machine is about _______ 20 V 0.1 V 2 V 10 V 20 V 0.1 V 2 V 10 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of D.C. machine winding, number of commutator segments is equal to Number of armature coil sides Number of armature turns Number of armature coils Number of armature conductors Number of armature coil sides Number of armature turns Number of armature coils Number of armature conductors ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Iron loss Stray loss Mechanical loss Constant loss Iron loss Stray loss Mechanical loss Constant loss 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 In a dc generator, armature reaction _____ pole tip. Strengthns the flux at the leading Weaknes the flux at the trailing Weaknes the flux at the leading None of the listed here Strengthns the flux at the leading Weaknes the flux at the trailing Weaknes the flux at the leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Slip rings Commutator Solid connection None of above Slip rings Commutator Solid connection None of above ANSWER DOWNLOAD EXAMIANS APP
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