With a motor converter it is possible to obtain D.C. voltage only upto__________?

Related Mcqs:

Ageing of a selenium rectifier may change the output voltage by__________?

A. 5 to 10 per cent B. 15 to 20 per cent C. 25 to 30 per cent D. none of the above...

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

A. The voltage regulation of the rec¬tifier should be low B. In the output circuit there should be no harmonics C. The power factor of the system should be high D. The rectifier supply transformer should be utilized to the best ad-vantage E. all of the above...

The internal efficiency of a mercury arc rectifier depends on___________?

A. voltage only B. current only C. voltage and current D. r.m.s. value of current E. none of the above...

In a mercury arc rectifier positive ions are attracted towards______________?

A. anode B. cathode C. shell bottom D. mercury pool...

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...