Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 45°C 30°C 55°C 75°C 45°C 30°C 55°C 75°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 80 to 85% 90 to 95% 85 to 90% 65 to 75% 80 to 85% 90 to 95% 85 to 90% 65 to 75% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as critical grid voltage non of the listed here all of the listed here maximum grid voltage critical grid voltage non of the listed here all of the listed here maximum grid voltage ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 200 A 1500 A 500 A 2000 A 200 A 1500 A 500 A 2000 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Single-phase Three-phase Six-phase Two-phase Single-phase Three-phase Six-phase Two-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter combines the function of an induction motor and a D.C. generator Both of the listed here None of the listed here a synchronous motor and a D.C. generator an induction motor and a D.C. generator Both of the listed here None of the listed here a synchronous motor and a D.C. generator ANSWER DOWNLOAD EXAMIANS APP
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