Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Motor converters All of the listed here Rectifiers Rotary converters Motor converters All of the listed here Rectifiers Rotary converters ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter operates at a low power factor high power factor zero power factor None of the listed here low power factor high power factor zero power factor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 55°C 75°C 45°C 30°C 55°C 75°C 45°C 30°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? All of the listed here Time switches Telephones Relay All of the listed here Time switches Telephones Relay ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Voltage drop in resistance of transformer and smoothing chokes All of the listed here Arc voltage drop Voltage drop in transformer reactance Voltage drop in resistance of transformer and smoothing chokes All of the listed here Arc voltage drop Voltage drop in transformer reactance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury pool rectifier, the voltage drop across its electrodes is inversely proportional to load is almost independent of load current varies exponentially with the load current is directly proportional to load is inversely proportional to load is almost independent of load current varies exponentially with the load current is directly proportional to load ANSWER DOWNLOAD EXAMIANS APP