Menu
Home / EEE / Rectifiers and Converters :: section-1

EEE :: Rectifiers and Converters

Rectifiers and Converters - section-1
Rectifiers and Converters - Section-2
  1. The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following

    2. 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

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. In which of the following appUcations, direct current is absolutely essential ?

    3. A.

     Illumination
    B.

     Electrolysis
    C.

     Variable speed operation
    D.

     Traction

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. In phase-shift control method the control is carried out by varying the of grid voltage.

    4. A.

     magnitude
    B.

     polarity
    C.

     phase
    D.

     any of the above
    E.

     none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. A mercury arc rectifier possesses ________ regulation characteristics

    5. A.

     straight line
    B.

     curved line
    C.

     exponential
    D.

     none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. The ionization potential of mercury is approximately

    6. A.

     5.4 V
    B.

     8.4 V
    C.

     10.4 V
    D.

     16.4 V

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. Selenium rectifier can be operated at temperatures as high as

    7. A.

     25°C
    B.

     40°C
    C.

     60°C
    D.

     75°C

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Which of the following is reversible in action?

    8. A.

     Motor generator set
    B.

     Motor converter
    C.

     Rotary converter
    D.

     Any of the above
    E.

     None of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. A rotary converter operates at a

    9. A.

     low power factor
    B.

     high power factor
    C.

     zero power factor
    D.

     none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers