Which of the following rectifiers have been used extensively in supplying direct current for electroplating ?

Related Mcqs:

The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ?

A. They are mechanically strong B. They do not require any voltage for filament heating C. Both (A) and (B) D. None of the above...

In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode.

A. accelerates B. decelerates C. any of the above D. none of the above...

The advantage of mercury arc rectifier is that________________?

A. it is light in weight and occupies small floor space B. it has high efficiency C. it has high overload capacity D. it is comparatively noiseless E. all of the above...

In a rotary converter armature currents are______________?

A. d.c. only B. a.c. only C. partly a.c. and partly d.c....

Which of the following are the applications of D.C. system ?

A. Battery charging work B. Arc welding C. Electrolytic and electro-chemical processes D. Arc lamps for search lights E. All of the above...