Which of the following methods may be used to convert A.C. system to D.C ?

Related Mcqs:

Copper oxide rectifier is usually designed not to operate above___________?

A. 10°C B. 20°C C. 30°C D. 45°C...

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...

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...

If cathode and anode connections in a mercury arc rectifier are inter changed_____________?

A. the rectifier will not operate B. internal losses will be reduced C. both ion and electron streams will move in the same direction D. the rectifier will operate at reduced efficiency...

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...