DC Generators The armature core of a D.C. generator is usually made of Silicon steel Copper Nonferrous material Cast-iron Silicon steel Copper Nonferrous material Cast-iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage May be greater or less than 250 V Will always be 250 V None of these Will be less than 250 V May be greater or less than 250 V Will always be 250 V None of these Will be less than 250 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Facilitate commutation Reduce armature reaction Save iron Reduce losses Facilitate commutation Reduce armature reaction Save iron Reduce losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To reduce the combined effect of armature reaction of both the machines To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both the machines To increase the generated e.m.f. So that the two identical machines will pass approximately equal currents to the load To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, the eddy current power loss is Directly proportional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination Directly proportional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination ANSWER DOWNLOAD EXAMIANS APP
DC Generators The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator. About the same as More than Less than None of the listed here About the same as More than Less than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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