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Rectifiers And Converters QUESTIONS AND ANSWERS

Electrical Engineering : Rectifiers And Converters QUESTIONS AND ANSWERS :: part2 : 16 to 20

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

16.Which of the following statement is incorrect ?

Copper oxide rectifier is a linear device

Copper oxide rectifier is not a perfect rectifier

Copper oxide rectifier has a low efficiency

Copper oxide rectifier finds use in control circuits

17.Which of the following mercury arc rectifier will deliver least undulating current?

Six-phase

Three-phase

Two-phase

Single-phase

18.A commutating rectifier consists of commutator driven by

an induction motor

a synchronous motor

a D.C. series motor

a D.C. shunt motor

19.In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as

maximum grid voltage

critical grid voltage

any of the above

none of the above

20.A mercury arc rectifier possesses ________ regulation characteristics

straight line

curved line

exponential

none of the above

More Rectifiers And Converters QUESTIONS AND ANSWERS available in next pages