The internal efficiency of a mercury arc rectifier depends on___________?

Related Mcqs:

The efficiency of the copper oxide rectifier seldom exceeds____________?

A. 90 to 95% B. 85 to 90% C. 80 to 85% D. 65 to 75%...

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...

The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following_____________?

A. anode drop and cathode drop B. anode drop and arc drop C. cathode drop and arc drop D. anode drop, cathode drop and arc drop...

The voltage drop at anode, in a mercury arc rectifier is due to_____________?

A. self restoring property of mercury B. high ionization potential C. energy spent in overcoming the electrostatic field D. high temperature inside the rectifier...

Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?

A. Motor-generator set B. Motor converter C. Rotary converter D. Mercury arc rectifier...