DC Generators Current versus time graph for an ideal commutation is a None of the listed here Straight line Parabola Hydrobola None of the listed here Straight line Parabola Hydrobola ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Constant loss Iron loss Mechanical loss Stray loss Constant loss Iron loss Mechanical loss Stray loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Excessive spring pressure Rough commutator bars Abrasion from dust All of these Excessive spring pressure Rough commutator bars Abrasion from dust All of these 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
DC Generators The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is 4 6 8 2 4 6 8 2 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc machine is laminated in order to reduce Copper loss Eddy current loss Hysteresis loss Frictional loss Copper loss Eddy current loss Hysteresis loss Frictional loss ANSWER DOWNLOAD EXAMIANS APP
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