Rectifiers and Converters The ignited or auxiliary anode in mercury arc rectifier is made of Graphite Boron carbide Aluminium Copper Graphite Boron carbide Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier low mercury vapour pressures are used tube is evacuated an auxiliary electrode is used anode is heated low mercury vapour pressures are used tube is evacuated an auxiliary electrode is used anode is heated ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 2000 A 200 A 500 A 1500 A 2000 A 200 A 500 A 1500 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following are the applications of D.C. system? Arc welding All of the listed here Electrolytic and electro-chemical processes Battery charging work Arc welding All of the listed here Electrolytic and electro-chemical processes Battery charging work ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers can operate on high voltages operate on low temperatures can operate on heavy loads give poor regulation can operate on high voltages operate on low temperatures can operate on heavy loads give poor regulation ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Copper oxide rectifiers Mechanical rectifiers Electrolytic rectifiers Selenium rectifiers Copper oxide rectifiers Mechanical rectifiers Electrolytic rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
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