Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers Selenium rectifiers Copper oxide rectifiers Mercury arc rectifiers Mechanical rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Illumination Traction Electrolysis Variable speed operation Illumination Traction Electrolysis Variable speed operation 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 reversible in action? Motor generator set Rotary converter All of the listed here Motor converter Motor generator set Rotary converter All of the listed here Motor converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters It is the_______of the transformer on which the magnitude of angle of overlap depends. leakage reactance resistance capacitance all of the listed here leakage reactance resistance capacitance all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Arc voltage drop All of the listed here Voltage drop in resistance of transformer and smoothing chokes Voltage drop in transformer reactance Arc voltage drop All of the listed here Voltage drop in resistance of transformer and smoothing chokes Voltage drop in transformer reactance ANSWER DOWNLOAD EXAMIANS APP
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