Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 30°C 45°C 75°C 55°C 30°C 45°C 75°C 55°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is the loss within the mercury arc rectifier chamber? Voltage drop at the cathode Voltage drop in arc All of the listed here Voltage drop at the anode Voltage drop at the cathode Voltage drop in arc All of the listed here Voltage drop at the anode ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 90 to 95% 80 to 85% 65 to 75% 85 to 90% 90 to 95% 80 to 85% 65 to 75% 85 to 90% 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 maximum grid voltage all of the listed here critical grid voltage non of the listed here maximum grid voltage all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Motor converters All of the listed here Rectifiers Rotary converters Motor converters All of the listed here Rectifiers Rotary converters ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed Internal losses will be reduced The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction The rectifier will not operate Internal losses will be reduced The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction The rectifier will not operate ANSWER DOWNLOAD EXAMIANS APP
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