DC Generators The number of brushes in a commutator depends on Voltage Speed of armature Amount of current to be collected Type of winding Voltage Speed of armature Amount of current to be collected Type of winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these The brushes of opposite polarity should track each other Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to Neutralize the armature reaction flux None of these Neutralize the commutating self induced e.m.f. Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the armature reaction flux None of these Neutralize the commutating self induced e.m.f. Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil ANSWER DOWNLOAD EXAMIANS APP
DC Generators Permeance is the reciprocal of Flux density Resistance Reluctance Ampere turns Flux density Resistance Reluctance Ampere turns ANSWER DOWNLOAD EXAMIANS APP
DC Generators The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage None of these May be greater or less than 250 V Will always be 250 V Will be less than 250 V None of these May be greater or less than 250 V Will always be 250 V Will be less than 250 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, the eddy current power loss is Directly proportional to thickness of each lamination Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination None of the listed here Directly proportional to thickness of each lamination Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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