Rectifiers and Converters A rotary converter operates at a high power factor low power factor None of the listed here zero power factor high power factor low power factor None of the listed here zero power factor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to colour of mercury ionization high temperature electron streams colour of mercury ionization high temperature electron streams ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Electrolysis Variable speed operation Traction Illumination Electrolysis Variable speed operation Traction Illumination 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 non of the listed here critical grid voltage maximum grid voltage all of the listed here non of the listed here critical grid voltage maximum grid voltage all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for One-third of a cycle One-fourth of a cycle One-half a cycle Two-third of a cycle One-third of a cycle One-fourth of a cycle One-half a cycle Two-third of a cycle ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters With a motor converter it is possible to obtain D.C. voltage only upto 200-100 V 1700-2000 V 1000-1200 V 600-800 V 200-100 V 1700-2000 V 1000-1200 V 600-800 V ANSWER DOWNLOAD EXAMIANS APP