Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 40°C 75°C 25°C 60°C 40°C 75°C 25°C 60°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 20, 30 75, 85 40, 50 30, 60 20, 30 75, 85 40, 50 30, 60 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Three-phase Two-phase Single-phase Six-phase Three-phase Two-phase Single-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter operates at a None of the listed here high power factor low power factor zero power factor None of the listed here high power factor low power factor zero power factor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Voltage drop in resistance of transformer and smoothing chokes Arc voltage drop Voltage drop in transformer reactance All of the listed here Voltage drop in resistance of transformer and smoothing chokes Arc voltage drop Voltage drop in transformer reactance All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? 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 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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