Rectifiers and Converters In a rotary converter armature currents are a.c. only partly a.c. and partly d.c. None of the listed here d.c. only a.c. only partly a.c. and partly d.c. None of the listed here d.c. only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers, as compared to mercury arc rectifiers operate on low temperatures can operate on high voltages can operate on heavy loads give poor regulation operate on low temperatures can operate on high voltages can operate on heavy loads give poor regulation ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Three-phase Single-phase Six-phase Two-phase Three-phase Single-phase Six-phase Two-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by An induction motor A D.C. shunt motor A synchronous motor A D.C. series motor An induction motor A D.C. shunt motor A synchronous motor A D.C. series motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 85 to 90% 65 to 75% 80 to 85% 90 to 95% 85 to 90% 65 to 75% 80 to 85% 90 to 95% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following anode drop and arc drop anode drop and cathode drop cathode drop and arc drop anode drop, cathode drop and arc drop anode drop and arc drop anode drop and cathode drop cathode drop and arc drop anode drop, cathode drop and arc drop ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS