DC Generators The bearings used to support the rotor shafts are generally Magnetic bearings Ball bearings Needle bearings Bush bearings Magnetic bearings Ball bearings Needle bearings Bush bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The copper loss is constant for Series generator only Shunt generator only None of the listed here Both shunt and compound generator Series generator only Shunt generator only None of the listed here Both shunt and compound generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, the eddy current power loss is Directly proportional to thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination Directly proportional to thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? Metal graphite brushes Carbon brushes None of these Graphite brushes Metal graphite brushes Carbon brushes None of these Graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a Straight line Parabola Hydrobola None of the listed here Straight line Parabola Hydrobola None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Excessive spring pressure Abrasion from dust All of these Rough commutator bars Excessive spring pressure Abrasion from dust All of these Rough commutator bars ANSWER DOWNLOAD EXAMIANS APP
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