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Chemical Engineering :: Materials and Construction

  1. Gun metal is an alloy of

  2. A.
    nickel, tin and copper
    B.
    copper, tin and zinc
    C.
    copper, phosphorus and nickel
    D.
    manganese, phosphorus and nickel

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  3. Carbon content in steel is __________ percent.

  4. A.
    0.1-2
    B.
    4-6
    C.
    2-4
    D.
    0.001-0.01

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  5. Nitriding of steel is a process for

  6. A.
    case hardening
    B.
    spheroidising
    C.
    normalising
    D.
    annealing

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  7. Which of the following has a very high carbide forming tendency in steels ?

  8. A.
    Silicon
    B.
    Chromium
    C.
    Nickel
    D.
    Vanadium

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  9. The most distinguished property of malleable cast iron is its high

  10. A.
    ductility
    B.
    hardness
    C.
    malleability
    D.
    none of these

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  11. Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress.

  12. A.
    ultimate
    B.
    yield point
    C.
    proof
    D.
    none of these

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  13. Which of the following is the hardest material ?

  14. A.
    Topaz
    B.
    Quartz
    C.
    Corrundum
    D.
    Flourite

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  15. Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system ?

  16. A.
    High silicon iron, silicon rubber, Kel-F and teflon.
    B.
    Mild steel and stainless steel.
    C.
    Cast iron, tin and aluminium.
    D.
    Copper, nickel and monel.

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  17. Biological shield in a nuclear power reactor is made of

  18. A.
    concrete
    B.
    steel
    C.
    cadmium
    D.
    zircalloy

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  19. Caustic soda is transported in __________ lined containers.

  20. A.
    glass
    B.
    nickel
    C.
    neoprene
    D.
    either (b) or (c)

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