Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 85 to 90% 90 to 95% 80 to 85% 65 to 75% 85 to 90% 90 to 95% 80 to 85% 65 to 75% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter I2R losses as compared to a D.C. generator of the same size will be Remain same More Less None of the listed here Remain same More Less None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Single-phase Two-phase Three-phase Six-phase Single-phase Two-phase Three-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Traction Variable speed operation Illumination Electrolysis Traction Variable speed operation Illumination Electrolysis 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 maximum grid voltage non of the listed here all of the listed here critical grid voltage maximum grid voltage non of the listed here all of the listed here critical grid voltage ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter combines the function of None of the listed here Both of the listed here an induction motor and a D.C. generator a synchronous motor and a D.C. generator None of the listed here Both of the listed here an induction motor and a D.C. generator a synchronous motor and a D.C. generator ANSWER DOWNLOAD EXAMIANS APP
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