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Civil Engineering :: Building Materials

Building Materials - Section 1
Building Materials - Section 2
Building Materials - Section 3
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. Pick up the correct statement from the following:

    2. A.

    In stone arches, the stones are placed with their natural beds radial
    B.

    In cornices, the stones are placed with their natural beds as vertical
    C.

    In cornices, the stones are placed with their natural beds as vertical
    D.

    All the above.

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  2. The commonly used colour pigment in paints, is

    3. A.

    ambers
    B.

    carbon black
    C.

    iron oxide
    D.

    lamp black
    E.

    all the above.

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  3.  

    Varnish is a transparent or semi-transparent solution of resinuous substances in
    4. A.

    alcohol
    B.

    linseed
    C.

    turpentine
    D.

    all the above.

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  4. Initial setting time of cement for asbestos cement products should be not less than
    5. A.

    30 minutes
    B.

    50 minutes
    C.

    75 minutes
    D.

    90 minutes.

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  5. The variety of pig iron used for the manufacture of steel by Bessemer process, is

    6. A.

    Bessemer pig
    B.

    Grey pig
    C.

    White forge pig
    D.

    Mottled pig.

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  6. For melting one tonne of cast iron
    7. A.

    700 m3 air is required
    B.

    20 kg limestone is required
    C.

    one quintal coke is required
    D.

    all the above.

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  7. For filling cracks in masonry structures, the type of bitumen used, is
    8. A.

    cut-back bitumen
    B.

    bitumen-emulsion
    C.

    blown bitumen
    D.

    plastic bitumen.

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  8. Plastic
    9. A.

    is an organic substance
    B.

    consists of natural or synthetic binders

     
    C.

    finished products are rigid and stable at normal temperature
    D.

    is capable of flow when necessary heat and pressure are applied
    E.

    All the above.

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  9. Vanadium steel is generally used for

    10. A.

    railway switches and crossing
    B.

    bearing balls
    C.

    magnets
    D.

    axles and springs.

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  10. Pick up the correct statement from the following:
    11. A.

    In basic Bessemer process, the steel heats the converter
    B.

    In open-hearth process, the furnace heats the steel
    C.

    In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
    D.

    all the above.

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