Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 90 to 95% 65 to 75% 85 to 90% 80 to 85% 90 to 95% 65 to 75% 85 to 90% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter is a single machine with one armature and two fields one armature and one field none of the listed here two armatures and one field one armature and two fields one armature and one field none of the listed here two armatures and one field ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of silver aluminium graphite copper silver aluminium graphite copper ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following anode drop and cathode drop anode drop and arc drop cathode drop and arc drop anode drop, cathode drop and arc drop anode drop and cathode drop anode drop and arc drop cathode drop and arc drop anode drop, cathode drop and arc drop ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by None of the listed here 25 to 30 per cent 15 to 20 per cent 5 to 10 per cent None of the listed here 25 to 30 per cent 15 to 20 per cent 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
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