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Civil Engineering :: Building Materials

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Building Materials - Section 7
Building Materials - Section 8
Building Materials - section-9
  1.  

    For a 50 kg cement bag water required, is
    2. A.

    16.5 litres
    B.

    18.5 litres
    C.

    20.5 litres
    D.

    22.5 litres
    E.

    25 litres.

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  2. The presence of sand in brick earth prevents:

    3. A.

    cracking of bricks
    B.

    shrinkage of bricks
    C.

    warping of bricks
    D.

    none of these.

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  3. The property by virtue of which lime sets under water, is known as
    4. A.

    slacking
    B.

    setting
    C.

    hydraulicity
    D.

    calcining.

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  4. Percentage content of silica in window glass, is

    5. A.
    40 to 45
    B.

    50 to 55
    C.

    60 to 65
    D.

    70 to 75.

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  5. The coefficient of hardness of stones used in road work should be greater than

    6. A.

    10
    B.

    12
    C.

    15
    D.

    17

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  6. Pick up the correct statement from the following:
    7. A.

    Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer
    B.

    Cupola furnace is used for the manufacture of cast iron
    C.

    Red short iron is of no value for welding purpose
    D.

    All the above.

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  7. The steel used for the manufacture of rails, is

    8. A.

    Bessemer steel
    B.

    mild steel
    C.

    cast steel
    D.
    stainless steel.

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  8. Slump test for concrete is carried out, to determine

    9. A.

    strength
    B.

    durability
    C.

    workability
    D.

    water content.

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  9. Basalt is

    10. A.

    sedimentary rock
    B.

    metamorphic rock
    C.

    extrusive igneous rock
    D.

    intrusive igneous rock.

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  10. The frog of a brick is normally made on its

    11. A.

    top face
    B.

    bottom face
    C.

    longer face
    D.

    shorter side.

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