Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on r.m.s. value of current voltage only current only voltage and current r.m.s. value of current voltage only current only voltage and current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Electrolysis Illumination Variable speed operation Traction Electrolysis Illumination Variable speed operation Traction ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? Telephones Relay Time switches All of the listed here Telephones Relay Time switches All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter is a single machine with two armatures and one field one armature and two fields one armature and one field none of the listed here two armatures and one field one armature and two fields one armature and one field none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters On which of the following factors the number of phases for which a rectifier should be designed depends? The voltage regulation of the rectifier should be low In the output circuit there should be no harmonics All of the listed here The power factor of the system should be high The voltage regulation of the rectifier should be low In the output circuit there should be no harmonics All of the listed here The power factor of the system should be high ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is the loss within the mercury arc rectifier chamber? Voltage drop in arc All of the listed here Voltage drop at the cathode Voltage drop at the anode Voltage drop in arc All of the listed here Voltage drop at the cathode Voltage drop at the anode ANSWER DOWNLOAD EXAMIANS APP