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Chemical Engineering :: Materials and Construction

Materials and Construction - Section 1
Materials and Construction - Section 2
Materials and Construction - Section 3
Materials and Construction - Section 4
Materials and Construction - Section 5
Materials and Construction - Section 6
Materials and Construction - Section 7
Materials and Construction - Section 8
Materials and Construction - Section 9
Materials and Construction - Section 10
Materials and Construction - Section 11

  1. Hardest materials so far found is

    2. A.
    diamond
    B.
    graphite
    C.
    carborundum
    D.
    pumice stone

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  2. Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as

    3. A.
    sheradising
    B.
    parkerising
    C.
    anodising
    D.
    none of these

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  3. Which of the following commercial metals is most abundantly found in India ?

    4. A.
    Copper
    B.
    Aluminium
    C.
    Nickel
    D.
    Zinc

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  4. Tin vessels are corroded by

    5. A.
    anhydrous ammonia
    B.
    aromatic solvents
    C.
    synthetic detergent solution
    D.
    none of these

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  5. Out of the following, copper vessels are the most suitable for the storage of

    6. A.
    bromine.
    B.
    dry chlorine & dry fluorine.
    C.
    nitric acid (95% and fuming).
    D.
    phosphoric acid (95%) & sulphuric acid (95% and fuming).

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  6. Tempering of steel is done to make it

    7. A.
    brittle
    B.
    hard
    C.
    rollable
    D.
    soft

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  7. Concrete tank can be used to store

    8. A.
    alum
    B.
    ferrous sulphate
    C.
    sulphuric acid
    D.
    saturated brine

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  8. Zinc is highly __________ at room temperature.

    9. A.
    ductile
    B.
    resistant to atmospheric corrosion
    C.
    malleable
    D.
    brittle

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  9. Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property ?

    10. A.
    Silicon
    B.
    Phosphorus
    C.
    Sulphur
    D.
    None of these

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  10. Most common stainless steel type 316, which is highly resistant to corrosion contains

    11. A.
    16-13% Cr 10-14% Ni and 2-3% Mo.
    B.
    20-22% Cr, and 8-10% Ni.
    C.
    2-4% Cr, 22% NI and 2-4% Mo.
    D.
    none of these.

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