In a mercury arc rectifier characteristic blue luminosity is due to_____________?

Related Mcqs:

The applications of selenium rectifiers are usually limited to potential of_____________?

A. 10 V B. 30 V C. 60 V D. 100 V E. 200 V...

Selenium rectifier can be operated at temperatures as high as____________?

A. 25°C B. 40°C C. 60°C D. 75°C...

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...

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...