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Chemical Engineering :: Materials and Construction

  1. High speed steel tools retain their hardness upto a temperature of __________ °C.

  2. A.
    500
    B.
    750
    C.
    900
    D.
    1100

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  3. Dry chlorine can be handled in a vessel made of

  4. A.
    iron or steel
    B.
    PVC (c) nickel
    C.
    brass

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  5. Brine solution is stored/treated in __________ lined vessels/pipes.

  6. A.
    rubber
    B.
    lead
    C.
    glass
    D.
    nickel

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  7. Steel balls for ball bearings are generally made of __________ steel.

  8. A.
    cast
    B.
    stainless
    C.
    free carbon
    D.
    carbon chrome

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  9. Beehive coke ovens are made of __________ bricks.

  10. A.
    silica
    B.
    fireclay
    C.
    silicon carbide
    D.
    corundum

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  11. Muntz metal is a/an alloys of

  12. A.
    magnesium & tin
    B.
    ferrous material
    C.
    lead & tin
    D.
    copper & zinc

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  13. Rotary kilns in cement industry are lined with____bricks.

  14. A.
    fireclay
    B.
    silica
    C.
    lead
    D.
    high alumina & high magnesia

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  15. Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.

  16. A.
    0.02
    B.
    0.2
    C.
    0.35
    D.
    0.5

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  17. Which of the following will have the highest melting point ?

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

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  19. Galvanising is generally done on

  20. A.
    non-ferrous metals
    B.
    low carbon steel
    C.
    stainless steel
    D.
    cast iron

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