Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Copper oxide rectifiers Electrolytic rectifiers Mechanical rectifiers Selenium rectifiers Copper oxide rectifiers Electrolytic rectifiers Mechanical rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 1500 A 500 A 2000 A 200 A 1500 A 500 A 2000 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 70 % 60 % 40 % 50 % 70 % 60 % 40 % 50 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ionization potential of mercury is approximately 16.4 V 5.4 V 10.4 V None of the listed here 16.4 V 5.4 V 10.4 V None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? Rotary converter Motor-generator set Mercury arc rectifier Motor converter Rotary converter Motor-generator set Mercury arc rectifier Motor converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 85 to 90% 90 to 95% 80 to 85% 65 to 75% 85 to 90% 90 to 95% 80 to 85% 65 to 75% ANSWER DOWNLOAD EXAMIANS APP
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