On which of the following factors the number of phases for which a rectifier should be designed depend ?

Related Mcqs:

In a mercury arc rectifier, the anode is usually made of_____________?

A. copper B. aluminium C. silver D. graphite E. tungsten...

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______________?

A. maximum grid voltage B. critical grid voltage C. any of the above D. none of the above...

In a three-phase mercury arc rectifiers each anode conducts for____________?

A. one-third of a cycle B. one-fourth of a cycle C. one-half a cycle D. two-third of a cycle...

Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of _____________?

A. 100 A at 100 V B. 200 A at 200 V C. 300 A at 300 V D. 400 A at 400 V E. 500 A at 500 V...

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...