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Chemical Engineering :: Chemical Engineering Basics-2

  1. Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

  2. A.

     Horizontal

    B.

     Vertical

    C.

     Inclined

    D.

     Any


  3. An example of unsteady non uniform flow is the flow of liquid under pressure through a

  4. A.

     Tapering pipe at constant flow rate

    B.

     Tapering pipe at either decreasing or increasing flow rate

    C.

     Long pipeline of constant diameter

    D.

     None of these


  5. Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is

  6. A.

     Chromium

    B.

     Nickel

    C.

     Zinc

    D.

     Aluminium


  7. Which of the following if present in iron ore, enhances its value?

  8. A.

     Alumina

    B.

     Alkali oxide

    C.

     Lime & Magnesia

    D.

     None of these


  9. Annealing ofwhite cast iron produces __________ iron.

  10. A.

     Grey

    B.

     Nodular

    C.

     Malleable

    D.

     Spheroidal


  11. __________ of grey cast iron produces white cast iron.

  12. A.

     Tempering

    B.

     Rapid heating

    C.

     Rapid cooling

    D.

     Slow cooling


  13. Which of the following pairs is not correctly matched?

  14. A.

     Uranium - 233 : Fertile material

    B.

     Bindingenergy : Mass defect

    C.

     Scattering : Absorption cross-section

    D.

     Number of nucleons : Mass number


  15. Speisses is a mixture of the following:

  16. A.

     Arsenides of heavy metals

    B.

     Antimonides of heavy metals

    C.

     Arsenides & antimonides of heavy metals

    D.

     Iron, cobalt and nickel


  17. LVDT used for displacement measurement is a/an __________ transducer.

  18. A.

     Passive

    B.

     Active

    C.

     Capacitive

    D.

     None of these


  19. The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

  20. A.

     3

    B.

     7

    C.

     11

    D.

     15