Which of the following is reversible in action ?

Related Mcqs:

In a mercury arc rectifier, the anode is usually made of_____________?

A. copper B. aluminium C. silver D. graphite E. tungsten...

A commutating rectifier consists of commutator driven by___________?

A. an induction motor B. a synchronous motor C. a D.C. series motor D. a D.C. shunt motor...

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...

In a rotary converter I2R losses as compared to a D.C. generator of the same size will be___________?

A. same B. less C. double D. three times...

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

A. Rectifiers B. Motor converters C. Motor-generator sets D. Rotary converters E. All of the above...