In a single phase rotary converter the number of slip rings will be_____________?

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...

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...

Which of the following AC. motors is usually used in large motor-generator sets?

A. Synchronous motor B. Squirrel cage induction motor C. Slip ring induction motor D. Any of the above...

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...