Rectifiers and Converters Which of the following are the applications of D.C. system? Electrolytic and electro-chemical processes All of the listed here Arc welding Battery charging work Electrolytic and electro-chemical processes All of the listed here Arc welding Battery charging work ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Selenium rectifiers Mechanical rectifiers Mercury arc rectifiers Copper oxide rectifiers Selenium rectifiers Mechanical rectifiers Mercury arc rectifiers Copper oxide rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Any of the listed here Squirrel cage induction motor Synchronous motor Slip ring induction motor Any of the listed here Squirrel cage induction motor Synchronous motor Slip ring induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter I2R losses as compared to a D.C. generator of the same size will be Remain same More Less None of the listed here Remain same More Less None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? Telephones All of the listed here Relay Time switches Telephones All of the listed here Relay Time switches ANSWER DOWNLOAD EXAMIANS APP
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