Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Electrolytic rectifiers Copper oxide rectifiers Mechanical rectifiers Selenium rectifiers Electrolytic rectifiers Copper oxide rectifiers Mechanical rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Synchronous motor Any of the listed here Slip ring induction motor Squirrel cage induction motor Synchronous motor Any of the listed here Slip ring induction motor Squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Rotary converter Motor generator set All of the listed here Motor converter Rotary converter Motor generator set All of the listed here Motor converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 20 V 100 V 10 V 30 V 20 V 100 V 10 V 30 V 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 potential drop in the arc, in a mercury arc rectifier, varies 2 V to 3.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc 2 V to 3.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
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