DC Generators In a lap winding, the number of the brushes required is equal to Commutator pitch Number of pairs of poles Number of poles None of the listed here Commutator pitch Number of pairs of poles Number of poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to Constant loss Equal to half of constant loss None of the listed here Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here Equal to double the constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to reverse the field connections increase the speed of primemover increase the field resistance check armature insulation resistance reverse the field connections increase the speed of primemover increase the field resistance check armature insulation resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators The current in armature conductors of a dc machine is ______ Ac Pulsating dc Pure dc plus pulsating dc Pure dc Ac Pulsating dc Pure dc plus pulsating dc Pure dc ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Mica Paper Graphite Insulating varnish Mica Paper Graphite Insulating varnish ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be None of these Less than 150 V Greater than 150 V 150 V None of these Less than 150 V Greater than 150 V 150 V ANSWER DOWNLOAD EXAMIANS APP
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