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Chemical Engineering :: Materials and Construction

  1. The fermentor used in the production of pencillin (by deep fermentation process) is made of

  2. A.
    glass
    B.
    glass lined steel
    C.
    high silicon cast iron
    D.
    procelain

  3. Nickel (76%) and chromium (15%) alloys are termed as

  4. A.
    inconel
    B.
    monel
    C.
    aluminium bronzes
    D.
    brass

  5. Low carbon steels are those in which carbon percentage is around

  6. A.
    0.1 to 0.35
    B.
    0.4 to 0.7
    C.
    0.8 to 1.5
    D.
    1.5 to 2

  7. White metal is an alloy of

  8. A.
    lead, tin and cadmium
    B.
    copper, tin and zinc
    C.
    copper and lead
    D.
    none of these

  9. The carbonating tower used in Solvay process of soda ash manufacture is made of

  10. A.
    cast iron
    B.
    stainless steel
    C.
    karbate
    D.
    lead lined steel

  11. For platinum thermocouples, lead wires are made of

  12. A.
    copper & copper-nickel alloys.
    B.
    copper & iron.
    C.
    iron & nickel.
    D.
    tin & nickel.

  13. High resistance electrical heating elements/wire are not made of

  14. A.
    marageing steel
    B.
    nimonic alloys
    C.
    kanthal wire
    D.
    nichrome

  15. Cast irons are generally specified by their

  16. A.
    carbon percentage
    B.
    tensile strength
    C.
    hardness
    D.
    iron percentage

  17. Which one is remelted and poured into moulds to get cast iron ?

  18. A.
    Wrought iron
    B.
    Pig iron
    C.
    Low carbon steel
    D.
    Mild steel

  19. Wood metal is not used for making

  20. A.
    soft solder.
    B.
    casting for dental work.
    C.
    storage tank for storing brine and caustic soda.
    D.
    fusible safety plug for pressure cooker.