DC Generators The critical resistance of the D.C. generator is the resistance of Field Armature Brushes Load Field Armature Brushes Load ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine carries ______ pole flux. None of the listed here Two times the Three times One-half of None of the listed here Two times the Three times One-half of ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine All of these The brushes of opposite polarity should track each other The brushes of same polarity should track each other Brush position has no effect on the commutator grooving All of these The brushes of opposite polarity should track each other The brushes of same polarity should track each other Brush position has no effect on the commutator grooving ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Shunt Series Over compounded Flat compounded Shunt Series Over compounded Flat compounded ANSWER DOWNLOAD EXAMIANS APP
DC Generators The no load voltage of a generator is 240 V and rated load voltage is 220 V. The voltage regulation of the generator is 4.5% 2.8% 9.1% 11.3% 4.5% 2.8% 9.1% 11.3% 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 Armature resistance drop Commutation Armature reaction Field weakening due to armature reaction and armature Armature resistance drop Commutation ANSWER DOWNLOAD EXAMIANS APP
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