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 10 150 100 50 10 150 100 ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole dc machine has _____ magnetic circuits. 2 6 4 8 2 6 4 8 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The brush voltage drop in dc machine is about _______ 10 V 20 V 2 V 0.1 V 10 V 20 V 2 V 0.1 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generating machine will offer constant voltage on all loads? Level compounded generator Self-excited generator All of these Separately excited generator Level compounded generator Self-excited generator All of these Separately excited generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators An exciter for a turbo generator is a Separately excited generator Compound generator Series generator Shunt generator Separately excited generator Compound generator Series generator Shunt generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal series field resistances unequal number of turns in their series field windings unequal speed regulation of their primemovers their rising voltage characteristics unequal series field resistances unequal number of turns in their series field windings unequal speed regulation of their primemovers their rising voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
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