Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on r.m.s. value of current current only voltage and current voltage only r.m.s. value of current current only voltage and current voltage only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Mechanical rectifiers Copper oxide rectifiers Mercury arc rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Mercury arc rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Three-phase Single-phase Two-phase Six-phase Three-phase Single-phase Two-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies none of the listed here 2 V to 3.5 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc none of the listed here 2 V to 3.5 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started by means of a small auxiliary motor from D.C. side as D.C. motor from A.C. side as induction motor All of the listed here by means of a small auxiliary motor from D.C. side as D.C. motor from A.C. side as induction motor All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of Synchronous motor Synchronous generator Induction regulator Shunt motor Synchronous motor Synchronous generator Induction regulator Shunt motor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS