Rectifiers and Converters Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? Rotary converter Motor-generator set Mercury arc rectifier Motor converter Rotary converter Motor-generator set Mercury arc rectifier Motor converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Three-phase Two-phase Six-phase Single-phase Three-phase Two-phase Six-phase Single-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 90 to 95% 80 to 85% 85 to 90% 65 to 75% 90 to 95% 80 to 85% 85 to 90% 65 to 75% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 75°C 60°C 40°C 25°C 75°C 60°C 40°C 25°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? All of the listed here Rotary converters Rectifiers Motor converters All of the listed here Rotary converters Rectifiers Motor converters ANSWER DOWNLOAD EXAMIANS APP
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