DC Generators In a D.C. generator Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field structure of a dc machine uses ______ None of the listed here Salient pole arrangements None salient pole arrangements Both salient and non salient pole arrangements None of the listed here Salient pole arrangements None salient pole arrangements Both salient and non salient pole arrangements ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. Less than 0.5 % 2% to 5% 15 to 25% More than 20% Less than 0.5 % 2% to 5% 15 to 25% More than 20% 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 2.8% 9.1% 11.3% 4.5% 2.8% 9.1% 11.3% 4.5% ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Cast steel Aluminum Soft iron Silicon steel Cast steel Aluminum Soft iron Silicon steel ANSWER DOWNLOAD EXAMIANS APP
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