DC Generators The yoke of a dc machine carries ______ pole flux. Two times the One-half of Three times None of the listed here Two times the One-half of Three times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? None of these Carbon brushes Graphite brushes Metal graphite brushes None of these Carbon brushes Graphite brushes Metal graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Hard copper Soft copper Carbon All of above Hard copper Soft copper Carbon All of above ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 50 100 150 10 50 100 150 10 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Cast steel Soft iron Silicon steel Aluminum Cast steel Soft iron Silicon steel Aluminum ANSWER DOWNLOAD EXAMIANS APP
DC Generators The effect of armature reaction is to Increase the total flux Make the air gap flux uniform None of the listed here Decrease the total flux Increase the total flux Make the air gap flux uniform None of the listed here Decrease the total flux ANSWER DOWNLOAD EXAMIANS APP
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