DC Generators The armature winding of a dc machine is ______ winding. None of the listed here A closed circuit Partly open circuit and partly closed circuit An open circuit None of the listed here A closed circuit Partly open circuit and partly closed circuit An open circuit ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a cummulative compounded generator the shunt and series fields ______ each other. None of the listed here Aid Oppose Sometime aid, sometime oppose None of the listed here Aid Oppose Sometime aid, sometime oppose ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine The brushes of same polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other The brushes of same polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal speed regulation of their primemovers unequal series field resistances their rising voltage characteristics unequal number of turns in their series field windings unequal speed regulation of their primemovers unequal series field resistances their rising voltage characteristics unequal number of turns in their series field windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Carbon Silicon steel Stainless steel Case iron Carbon Silicon steel Stainless steel Case iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Armature reaction Field weakening due to armature reaction and armature Commutation Armature resistance drop Armature reaction Field weakening due to armature reaction and armature Commutation Armature resistance drop ANSWER DOWNLOAD EXAMIANS APP
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