Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 200 A 2000 A 500 A 1500 A 200 A 2000 A 500 A 1500 A ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? All of the listed here Relay Time switches Telephones All of the listed here Relay Time switches Telephones ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 30, 60 40, 50 20, 30 75, 85 30, 60 40, 50 20, 30 75, 85 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Six-phase Single-phase Three-phase Two-phase Six-phase Single-phase Three-phase Two-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed The rectifier will not operate The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction Internal losses will be reduced The rectifier will not operate The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction Internal losses will be reduced ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Traction Illumination Electrolysis Variable speed operation Traction Illumination Electrolysis Variable speed operation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS