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Chemical Engineering Basics - Section 1
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Chemical Engineering Basics - Section 5
Chemical Engineering Basics - Section 6
Chemical Engineering Basics - Section 7
Chemical Engineering Basics - Section 8
Chemical Engineering Basics - Section 9
Chemical Engineering Basics - Section 10
Chemical Engineering Basics - Section 11
Chemical Engineering Basics - Section 12
Chemical Engineering Basics - Section 13
Chemical Engineering Basics - Section 14
Chemical Engineering Basics - Section 15
Chemical Engineering Basics - Section 16
Chemical Engineering Basics - Section 17
Chemical Engineering Basics - Section 18
Chemical Engineering Basics - Section 19
Chemical Engineering Basics - Section 20
Chemical Engineering Basics - Section 21
Chemical Engineering Basics - Section 22
Chemical Engineering Basics - Section 23
Chemical Engineering Basics - Section 24
Chemical Engineering Basics - Section 25
Chemical Engineering Basics - Section 26
Chemical Engineering Basics - Section 27
Chemical Engineering Basics - Section 28

  1. Maraging steels derive their strength from the following mechanism:

    2. A.
    A fine, highly dislocated and strong martensite.
    B.
    Fine dispersions of intermetallics of Fe, Ni, Ti etc.
    C.
    Fine dispersions of alloy carbides in a ferrite matrix.
    D.
    Fine dispersions of Fe3 C nucleated on dislocations in austenite.

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  2. Ceramic compounds as compared to metallic compounds

    3. A.
    crystallise faster.
    B.
    resist greater tensile stress at room temperature.
    C.
    have higher melting temperature.
    D.
    are better conductor of electricity at higher temperature.

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  3. Pressure exerted by a liquid depends upon its

    4. A.
    surface tension
    B.
    density
    C.
    viscosity
    D.
    buoyancy

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  4. The most detrimental impurity in high pressure boiler feed water is

    5. A.
    suspended salt
    B.
    dissolved salt
    C.
    silica
    D.
    turbidity

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  5. Pick out the wrong statement.

    6. A.
    A soft magnetic material should have high permeability and small area of hysterisis loop.
    B.
    Poisson's ratio of high melting point metals is more than unity.
    C.
    Solders generally melt at less than 185°C.
    D.
    Steel produced by B.O.F process is ideally suited for manufacturing flat product.

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  6. The refractory lining of the bottom in a basic electric arc furnace is made of

    7. A.
    silica
    B.
    alumina
    C.
    magnesia
    D.
    fireclay

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  7. Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

    8. A.
    very low which prevents their ignition by compression.
    B.
    very high which prevents their ignition by compression
    C.
    zero.
    D.
    none of these.

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  8. Matte smelting is used in the extraction of

    9. A.
    lead
    B.
    zinc
    C.
    aluminium
    D.
    copper

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  9. Percentage of differential pressure lost in a venturimeter with a tapering of 15° may be about

    10. A.
    1
    B.
    10
    C.
    25
    D.
    50

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  10. Compressed dry air is used as the cutting fluid, while machining

    11. A.
    steel
    B.
    cast iron
    C.
    aluminium
    D.
    none of these

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