Rectifiers and Converters In a rotary converter armature currents are 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 a.c. only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Rectifiers All of the listed here Rotary converters Motor converters Rectifiers All of the listed here Rotary converters Motor converters ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Selenium rectifiers Mercury arc rectifiers Copper oxide rectifiers Mechanical rectifiers Selenium rectifiers Mercury arc rectifiers Copper oxide rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Variable speed operation Illumination Traction Electrolysis Variable speed operation Illumination Traction Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ignited or auxiliary anode in mercury arc rectifier is made of Aluminium Graphite Boron carbide Copper Aluminium Graphite Boron carbide Copper ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 20 V 10 V 100 V 30 V 20 V 10 V 100 V 30 V ANSWER DOWNLOAD EXAMIANS APP