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 Arc voltage drop All of the listed here Voltage drop in transformer reactance Voltage drop in resistance of transformer and smoothing chokes Arc voltage drop All of the listed here Voltage drop in transformer reactance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 30, 60 20, 30 40, 50 75, 85 30, 60 20, 30 40, 50 75, 85 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor converter Rotary converter All of the listed here Motor generator set Motor converter Rotary converter All of the listed here Motor generator set ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as critical grid voltage non of the listed here all of the listed here maximum grid voltage critical grid voltage non of the listed here all of the listed here maximum grid voltage ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Variable speed operation Traction Electrolysis Illumination Variable speed operation Traction Electrolysis Illumination ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury pool rectifier, the voltage drop across its electrodes 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 is inversely proportional to load ANSWER DOWNLOAD EXAMIANS APP
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