Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 5 to 10 per cent 25 to 30 per cent None of the listed here 15 to 20 per cent 5 to 10 per cent 25 to 30 per cent None of the listed here 15 to 20 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier positive ions are attracted towards mercury pool cathode shell bottom anode mercury pool cathode shell bottom anode ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters With a motor converter it is possible to obtain D.C. voltage only upto 200-100 V 600-800 V 1700-2000 V 1000-1200 V 200-100 V 600-800 V 1700-2000 V 1000-1200 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A synchronous motor A D.C. shunt motor A D.C. series motor An induction motor A synchronous motor A D.C. shunt motor A D.C. series motor An induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 30°C 55°C 45°C 75°C 30°C 55°C 45°C 75°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Selenium rectifiers Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers Selenium rectifiers Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
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