Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? They are mechanically strong None of the listed here They do not require any voltage for filament heating Both of the listed here They are mechanically strong None of the listed here They do not require any voltage for filament heating Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? Mercury arc rectifier Motor converter Motor-generator set Rotary converter Mercury arc rectifier Motor converter Motor-generator set Rotary converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters It is the_______of the transformer on which the magnitude of angle of overlap depends. resistance leakage reactance all of the listed here capacitance resistance leakage reactance all of the listed here capacitance 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 all of the listed here non of the listed here maximum grid voltage critical grid voltage all of the listed here non of the listed here maximum grid voltage ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on current only r.m.s. value of current voltage only voltage and current current only r.m.s. value of current voltage only voltage and current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 75°C 30°C 45°C 55°C 75°C 30°C 45°C 55°C ANSWER DOWNLOAD EXAMIANS APP
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