Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 50 % 40 % 60 % 70 % 50 % 40 % 60 % 70 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Traction Variable speed operation Electrolysis Illumination Traction Variable speed operation Electrolysis Illumination ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ionization potential of mercury is approximately 10.4 V None of the listed here 16.4 V 5.4 V 10.4 V None of the listed here 16.4 V 5.4 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on r.m.s. value of current voltage and current voltage only current only r.m.s. value of current voltage and current voltage only current only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters On which of the following factors the number of phases for which a rectifier should be designed depends? All of the listed here The voltage regulation of the rectifier should be low The power factor of the system should be high In the output circuit there should be no harmonics All of the listed here The voltage regulation of the rectifier should be low The power factor of the system should be high In the output circuit there should be no harmonics ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers can operate on high voltages give poor regulation operate on low temperatures can operate on heavy loads can operate on high voltages give poor regulation operate on low temperatures can operate on heavy loads ANSWER DOWNLOAD EXAMIANS APP
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