Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Motor converters Rectifiers Rotary converters All of the listed here Motor converters Rectifiers Rotary converters All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? Both of the listed here None of the listed here They are mechanically strong They do not require any voltage for filament heating Both of the listed here None of the listed here They are mechanically strong They do not require any voltage for filament heating 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 all of the listed here non of the listed here critical grid voltage maximum grid voltage all of the listed here non of the listed here critical grid voltage maximum grid voltage ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 60 % 40 % 50 % 70 % 60 % 40 % 50 % 70 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode electrons ions ions and electrons All of the listed here electrons ions ions and electrons All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers have been used extensively in supplying direct current for electroplating? Copper oxide rectifiers Mercury arc rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Mercury arc rectifiers Selenium rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
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