Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? None of the listed here They are mechanically strong They do not require any voltage for filament heating Both of the listed here None of the listed here They are mechanically strong They do not require any voltage for filament heating Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers can operate on heavy loads operate on low temperatures give poor regulation can operate on high voltages can operate on heavy loads operate on low temperatures give poor regulation can operate on high voltages ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 75°C 40°C 25°C 60°C 75°C 40°C 25°C 60°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 20 V 100 V 30 V 10 V 20 V 100 V 30 V 10 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor converter All of the listed here Motor generator set Rotary converter Motor converter All of the listed here Motor generator set Rotary converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury ionization electron streams high temperature colour of mercury ionization electron streams high temperature ANSWER DOWNLOAD EXAMIANS APP
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