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Chemical Engineering Basics - Section 1
Chemical Engineering Basics - Section 2
Chemical Engineering Basics - Section 3
Chemical Engineering Basics - Section 4
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. __________ iron is produced by the annealing of white cast iron.

    2. A.
    Malleable
    B.
    Nodular
    C.
    Ductile
    D.
    Grey

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  2. The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the

    3. A.
    final control element.
    B.
    on-off control.
    C.
    floating control action.
    D.
    none of these.

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  3. Fahrenheit and Centigrade scales have the same readings at

    4. A.
    -55°
    B.
    -40°
    C.
    -33°
    D.
    -58°

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  4. Which of the following low melting alloy containing bismuth and lead is used for electric fuse ?

    5. A.
    Wood's metal
    B.
    Babbit metal
    C.
    Monel metal
    D.
    Duralumin

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  5. Water-tube boiler is the one, in which

    6. A.
    water passes through tubes and flue gases around it.
    B.
    tube carrying hot flue gases are immersed in a pool of water.
    C.
    tubes are placed in vertical position.
    D.
    none of these.

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  6. Dephosphorisation of molten pig iron is favoured by

    7. A.
    oxidising and basic slag.
    B.
    reducing and basic slag.
    C.
    high activity co-efficient of phosphorous in metal.
    D.
    oxidising and neutral slag.

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  7. In a neutral solution

    8. A.
    H+ ions are absent.
    B.
    OH- ions are absent.
    C.
    both H+ and OH- ions are present in very small but equal concentration.
    D.
    none of these.

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  8. Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

    9. A.
    Admirability brass.
    B.
    Stainless steel.
    C.
    Aluminium brass.
    D.
    Titanium.

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  9. Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

    10. A.
    fracture
    B.
    dislocation
    C.
    slip
    D.
    twinning

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  10. A common disinfectant used in village wells for disinfection of water is

    11. A.
    free chlorine
    B.
    bromine
    C.
    iodine
    D.
    potassium permanganate

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