DC Generators In a long shunt compound wound generator , the shunt field is connected in parallel with Armature Series combination of armature and series field Parallel combination of armature and series field Series field Armature Series combination of armature and series field Parallel combination of armature and series field Series field ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator the ripples in the direct e.m.f. generated are reduced by Using commutator with large number of segments Using equalizer rings Using carbon brushes of superior quality Using conductor of annealed copper Using commutator with large number of segments Using equalizer rings Using carbon brushes of superior quality Using conductor of annealed copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators For a D.C. machines laboratory following type of D.C. supply will be suitable Mercury are rectifier Rotary converter Synchronous motor D.C. generator set Induction motor D.C. generator set Mercury are rectifier Rotary converter Synchronous motor D.C. generator set Induction motor D.C. generator set 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 machine, the number of commutator segment is equal to Numbers of conductors Number of coils None of the listed here Twice the number of poles Numbers of conductors Number of coils None of the listed here Twice the number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Stray loss Mechanical loss Constant loss Iron loss Stray loss Mechanical loss Constant loss Iron loss ANSWER DOWNLOAD EXAMIANS APP
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