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Building Materials - section-9
  1. Fibre boards can be

    2. A.

     Distempered
    B.

     Painted
    C.

     Painted and distempered
    D.

     Used for furniture

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  2. The process of mixing clay, water and other ingredients to make brick is known as

    3. A.

     Kneading
    B.

     Moulding
    C.

     Pugging
    D.

     Drying

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  3. Which of the following cements contains maximum percentage of dicalcium silicate?

    4. A.

     Ordinary Portland cement
    B.

     Low heat cement
    C.

     Rapid hardening cement
    D.

     Sulphate resisting cement

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  4. Cast iron

    5. A.

     Is obtained by purifying pig iron
    B.

     Is manufactured in required shapes
    C.

     May contain 2 to 5 per cent of carbon with other impurities
    D.

     All the above

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  5. Soundness test of cement determines

    6. A.

     Quality of free lime
    B.

     Ultimate strength
    C.

     Durability
    D.

     Initial setting

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  6. Which of the following cements is suitable for use in massive concrete structures such as large dams?

    7. A.

     Ordinary Portland cement
    B.

     Low heat cement
    C.

     Rapid hardening cement
    D.

     Sulphate resisting cement

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  7. The internal size of mould used in brick preparation is

    8. A.

     Equal to the size of a fully burnt brick
    B.

     Smaller than the size of a fully burnt brick
    C.

     Greater than the size of a fully burnt brick
    D.

     None of the above

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  8. The stretcher bond in brick masonry can be used only when the thickness of wall is

    9. A.

     90 mm
    B.

     180 mm
    C.

     190 mm
    D.

     280 mm

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  9. The slump recommended for mass concrete is about

    10. A.

     25 mm to 50 mm
    B.

     50 mm to 100 mm
    C.

     100 mm to 125 mm
    D.

     125 mm to 150 mm

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  10. Second class bricks

    11. A.

     Are of dark brown color
    B.

     Produce a metallic sound when struck
    C.

     Are well burnt
    D.

     Are under burnt

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