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Civil Engineering :: Building Materials

  1. The size of mould for bricks, is generally kept

  2. A.

    a little large to specified size

    B.

    a little small to specified size

    C.
    equal to specified size
    D.

    10% larger than specified size

    E.

    20% larger than specified size.

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  3. Most commonly used solvent in oil paints, is

  4. A.

    petroleum

    B.

    spirit

    C.

    coaltar

    D.

    turpentine.

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  5. Acrylic sheets

  6. A.

    possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness

    B.

    are generally unaffected by most household detergents

    C.

    possess the light transmission rate of 93%

    D.

    are available in various shapes

    E.

    all the above.

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  7. With storage, strength of cement

  8. A.

    increases

    B.

    decreases

    C.

    remains the same

    D.

    none to these.

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  9. The commonly used raw material in the manufacture of cement, is

  10. A.

    slate

    B.

    sand stone

    C.

    sand stone

    D.

    basalt.

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  11. Pick up the correct statement from the following:

  12. A.

    The free quartz suddenly expands at a temperature lower than 600°C

    B.

    The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2

    C.

    The sand stone with silicates resist a fire in a better way

    D.

    The argillaceous stone though poor in strength can resist fire quite weak

    E.

    All the above.

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  13. The most commonly used base for timber painting, is

  14. A.

    red lead

    B.

    zinc white

    C.

    white lead

    D.
    titanium white.

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  15. Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following:

  16. A.

    absence of sun light

    B.

    dampness

    C.

    presence of sap

    D.

    stagnant air

    E.

    All the above,

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  17. The rocks formed from molten magma, are called

  18. A.

    sedimentary rocks

    B.

    igneous rocks

    C.

    metamorphic rocks

    D.

    none of these.

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  19. Bitumen paints offer

  20. A.

    pleasing surface

    B.

    hard surface

    C.

    smooth surface

    D.

    protective surface

    E.

    rough surface.

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  21. Pick up the correct statement from the following:

  22. A.

    Styrene resin is produced from ethylene which is made from petroleum

    B.

    Styrene resin is light in weight

    C.

    Styrene resin transmits ultraviolet waves of light

    D.

    Styrene resin is used to manufacture utensils which are unaffected by chemicals

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  23. The lime which contains high percentage of calcium oxide, is generally called

  24. A.

    fat lime

    B.

    rich lime

    C.

    white lime

    D.

    All of these.

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  25. For construction of structures under water, the type of lime used, is

  26. A.

    hydraulic lime

    B.

    fat lime

    C.

    quick lime

    D.

    pure lime

    E.

    none of these.

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  27. Pick up the correct statement from the following:

  28. A.

    Rust is due to formation of oxides

    B.

    Cast iron oxidises less

    C.

    Steel oxidises most

    D.

    Wrought iron oxidises moderately

    E.

    All the above.

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  29. A prime coat is given to steel work with

  30. A.

    an oxide of iron paint

    B.

    a mixture of white lead and lead paint

    C.

    a special paint

    D.

    cement paint.

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  31. Ground glass

  32. A.

    is made by grinding its one side

    B.

    is made by melting powdered glass paints surface

    C.

    is used for getting light without transparency

    D.

    all the above.

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  33. The harmonious mixing of the clay ingredients, is known as

  34. A.

    weathering

    B.

    blending

    C.

    tempering

    D.

    None of these.

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  35. Brass is an alloy of

  36. A.

    copper and zinc

    B.

    zinc and lead

    C.

    tin and silver

    D.

    zinc and nickel

    E.

    tin and lead.

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  37. The wedging is adopted for quarrying costly stratified rock such as

  38. A.

    laterite

    B.

    marble

    C.

    limestone

    D.

    sandstone

    E.

    All the above.

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  39. Rapid hardening cement attains early strength due to

  40. A.

    larger proportion of lime grounded finer than normal cement

    B.

    lesser proportion of lime grounded coarser than normal cement

    C.

    lesser proportion of lime grounded finer than normal cement

    D.

    lesser proportion of lime grounded finer than normal cement

    E.

    excess percentage of gypsum.

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  41. The colour of statuary marble used for sculptor's work, is

  42. A.

    red

    B.

    blue

    C.

    white

    D.

    green

    E.

    yellow

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  43. Second class bricks

  44. A.

    are of dark brown colour

    B.

    produce a metallic sound when struck

    C.

    are well burnt

    D.

    are under burnt.

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  45. Pick up the correct statement from the following:

  46. A.

    The low voltage porcelain is prepared by wet process

    B.

    The high voltage porcelain is prepared by dry process

    C.

    The low voltage porcelain is prepared by dry process

    D.

    None of the above.

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  47. Pick up the correct statement from the following:

  48. A.

    Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%

    B.

    The bulking of fine sand is more than that of coarse sand

    C.

    If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing

    D.

    The volume of fully saturated sand equals that of dry sand

    E.

    All the above.

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  49. Teak wood is suitable for

  50. A.

    sports articles

    B.

    furnitures

    C.

    railway sleepers

    D.

    all the above.

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  51. Plywood is normally available

  52. A.

    1 mm thick

    B.

    2 mm thick

    C.

    2 to 3 mm thick

    D.

    3 mm to 4 mm thick.

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