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Civil Engineering :: Building Materials

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Building Materials - Section 4
Building Materials - Section 5
Building Materials - Section 6
Building Materials - Section 7
Building Materials - Section 8
Building Materials - section-9

  1. The commonly used drying oil for oil paints, is

    2. A.

    olive oil
    B.

    linseed oil
    C.

    kerosine oil
    D.

    accetate of lead.

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  2. Initial setting of cement is caused due to
    3. A.

    Tri-calcium silicate
    B.

    Di-calcium silicate
    C.

    Tri-calcium aluminate
    D.

    Tetra calcium alumino ferrite.

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  3. The foliated structure is very common in

    4. A.

    sedimentary rocks
    B.

    igneous rocks
    C.

    metamorphic rocks
    D.

    none of these.

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  4. Turpentine oil is used in paints as

    5. A.

    thinner
    B.

    vehicle
    C.

    base
    D.

    drier.

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  5. The hardest rock is

    6. A.

    marble
    B.

    diamond
    C.

    talc
    D.

    quartz.

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  6. The silica is used for preparing

    7. A.

    silica bricks
    B.

    coke oven
    C.

    lining for glass furnaces
    D.

    all of these.

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  7. Wrought iron is manufactured from pig iron by

    8. A.

    refining
    B.

    puddling
    C.

    shingling
    D.

    rolling
    E.

    all the above.

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  8. Pick up the correct statement from the following:

    9. A.

    The phenol is carbolic acid
    B.

    The phenol is either extracted from coal-tar or prepared from benzene
    C.

    Phenol reacts with formaldehyde, to form phenol formaldehyde resin
    D.

    The plastics prepared from phenol-formaldehyde are used for paints, varnishes, w.c. seats
    E.

    All the above.

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  9. Fibre boards can be

    10. A.

    distempered
    B.

    painted
    C.

    painted and distempered
    D.

    used for furniture.

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  10. Pick up the correct statement from the following:

    11. A.

    Catalysts are added to assist and accelerate the hardening of resin,
    B.

    The fillers are inert materials and they impart strength and hardness
    C.

    Fibrous fillers increase thermal resistance
    D.

    All the above.

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