DC Generators The insulating material used between the commutator segments is normally Insulating varnish Paper Graphite Mica Insulating varnish Paper Graphite Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator pitch for simplex lap winding is equal to Numbers of poles in the machine Number of pairs of poles None of the listed here 1 Numbers of poles in the machine Number of pairs of poles None of the listed here 1 ANSWER DOWNLOAD EXAMIANS APP
DC Generators Small dc machines generally have _____ poles. 2 8 4 6 2 8 4 6 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Cast steel Silocon steel Wrought iron Soft iron Cast steel Silocon steel Wrought iron Soft iron 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 check armature insulation resistance increase the speed of primemover reverse the field connections increase the field resistance check armature insulation resistance increase the speed of primemover reverse the field connections increase the field resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a Stray loss None of the listed here Constant loss Variable loss Stray loss None of the listed here Constant loss Variable loss ANSWER DOWNLOAD EXAMIANS APP
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