Rectifier Multiple Choice Questions and Answers

11.  A mercury arc rectifier possesses ...............regulation characteristics

   A. Straight line

   B. Curved line

   C. Exponential

   D. All of the alarms

12.  In a mercury arc rectifier.............flow from anode to cathode

   A. Ions

   B. Electrons

   C. Ions and electrons

   D. Any of the above

13.  In a mercury arc rectifier characteristic blue luminosity is due to

   A. Colour of mercury

   B. Ionization

   C. High-temperature

   D. Electron streams

14.  In a three-phase mercury arc rectifier anode conducts for

   A. One third of a cycle

   B. One fourth of a cycle

   C. One half of a cycle

   D. Two third of a cycle

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

   A. Six phase

   B. Three phase

   C. Two phase

   D. Single phase

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