Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed Both ion and electron streams will move in the same direction The rectifier will not operate Internal losses will be reduced The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction The rectifier will not operate Internal losses will be reduced The rectifier will operate at reduced efficiency ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Copper oxide rectifiers Selenium rectifiers Mechanical rectifiers Mercury arc rectifiers Copper oxide rectifiers Selenium rectifiers Mechanical rectifiers Mercury arc rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following metals is generally manufactured by electrolysis process? Aluminium Zinc Load Copper Aluminium Zinc Load Copper ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 30, 60 20, 30 75, 85 40, 50 30, 60 20, 30 75, 85 40, 50 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier low mercury vapour pressures are used an auxiliary electrode is used tube is evacuated anode is heated low mercury vapour pressures are used an auxiliary electrode is used tube is evacuated anode is heated ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? All of the listed here Rotary converters Motor converters Rectifiers All of the listed here Rotary converters Motor converters Rectifiers ANSWER DOWNLOAD EXAMIANS APP
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