Rectifiers and Converters In a mercury arc rectifier characteristic blue luminosity is due to high temperature electron streams ionization colour of mercury high temperature electron streams ionization colour of mercury 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? All of the listed here In the output circuit there should be no harmonics The voltage regulation of the rectifier should be low The power factor of the system should be high All of the listed here In the output circuit there should be no harmonics The voltage regulation of the rectifier should be low The power factor of the system should be high ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on current only r.m.s. value of current voltage only voltage and current current only r.m.s. value of current voltage only voltage and current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is the loss within the mercury arc rectifier chamber? Voltage drop at the anode 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 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are d.c. only 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 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Synchronous motor Squirrel cage induction motor Any of the listed here Slip ring induction motor Synchronous motor Squirrel cage induction motor Any of the listed here Slip ring induction motor ANSWER DOWNLOAD EXAMIANS APP
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