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Chemical Engineering :: Chemical Engineering Basics

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. The most suitable material of construction for a sewer to carry sewage under high pressure is

    2. A.
    asbestos cement
    B.
    steel
    C.
    cement concrete
    D.
    stoneware

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  2. Filler material used in welding should have __________ as compared to the parent metal to be welded.

    3. A.
    lower melting temperature
    B.
    same melting temperature
    C.
    same composition
    D.
    both 'b' & 'c'

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  3. Oxygen cylinders used for autogenous (cutting/welding) purposes are

    4. A.
    seamless & made of steel.
    B.
    heat treated before use.
    C.
    made by sand casting.
    D.
    welded steel cylinders.

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  4. Identify the correct statement.

    5. A.
    Sphlerite is zinc oxide.
    B.
    The first law of the thermodynamics is stated as δE = δQ - δW.
    C.
    Lead can be produced in a blast furnace.
    D.
    T. ferrooxidans is a fungus that can be used for leaching chalcopyrite.

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  5. Dowtherm is a

    6. A.
    high temperature heating medium (a petroleum product).
    B.
    product of coal tar distillation.
    C.
    very heat sensitive material.
    D.
    none of these.

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  6. To counteract the bad effects of strain hardening on a cold formed part, it must be

    7. A.
    tempered
    B.
    normalised
    C.
    annealed
    D.
    hardened

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  7. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

    8. A.
    wet bulb temperature=dry bulb temperature.
    B.
    wet bulb temperature=dew point temperature.
    C.
    saturation temperature=dew point temperature.
    D.
    all 'a' , 'b' & 'c'

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  8. Galvanic corrosion can not be prevented by

    9. A.
    cathodic protection.
    B.
    anodic protection.
    C.
    usage of largest possible anodic area.
    D.
    any one of these.

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  9. Fire in fuel gas pipelines is extinguished most effectively by

    10. A.
    spraying water.
    B.
    blanketting the area with nitrogen atmosphere.
    C.
    fire fighting foam.
    D.
    none of these.

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  10. Which of the following is the most suitable abrasive for grinding high tensile strength materials ?

    11. A.
    Silicon carbide
    B.
    Corundum
    C.
    Aluminium oxide
    D.
    Boron carbide

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