Rectifiers and Converters Which of the following metals is generally manufactured by electrolysis process? Load Aluminium Copper Zinc Load Aluminium Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for Two-third of a cycle One-fourth of a cycle One-third of a cycle One-half a cycle Two-third of a cycle One-fourth of a cycle One-third of a cycle One-half a cycle ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 0.5 V to 1.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 2 V to 3.5 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 2 V to 3.5 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 30°C 75°C 55°C 45°C 30°C 75°C 55°C 45°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 25 to 30 per cent None of the listed here 5 to 10 per cent 15 to 20 per cent 25 to 30 per cent None of the listed here 5 to 10 per cent 15 to 20 per cent ANSWER DOWNLOAD EXAMIANS APP
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 Internal losses will be reduced The rectifier will operate at reduced efficiency The rectifier will not operate Both ion and electron streams will move in the same direction Internal losses will be reduced The rectifier will operate at reduced efficiency The rectifier will not operate ANSWER DOWNLOAD EXAMIANS APP
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