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Civil Engineering :: Building Materials

  1. Portland pozzolana cement possesses

  2. A.

    higher resistance to chemical attack

    B.

    lower heat of hydration

    C.

    lower shrinkage on drying

    D.

    water tightness

    E.

    all the above.


  3. Iron ore may contain

  4. A.

    carbon

    B.

    silicon

    C.

    sulphur

    D.

    phosphorus and maganese

    E.

    all the above.


  5. Wrought iron is used for

  6. A.

    structural works in beams

    B.

    small sized water pipes

    C.

    columns and struts

    D.

    none to these.


  7. The timber having maximum resistance against white ants, is obtained from

  8. A.

    chir

    B.

    shisham

    C.

    sal

    D.

    teak.


  9. Knots in timber are

  10. A.

    defects caused by crushing fibres

    B.

    splits radiating from the centre

    C.

    speckled strains

    D.

    signs of branches cut off.


  11. Pick up the correct statement from the following:

  12. A.

    Solder material is an alloy which melts at a temperature above 400°C

    B.

    Brazing is done at temperature above 600°C to 1100°C

    C.

    Brazing joint is stronger than the solder joint

    D.

    all the above.


  13.  

    Lime concrete is generally used for

  14. A.

    wall foundations

    B.

    flooring at ground level

    C.

    both (a) and (b)

    D.

    neither (a) nor (b).


  15. Bituminous fells are used for

  16. A.

    covering A.C. sheets

    B.

    covering sloping roofs

    C.

    D.P.C.

    D.

    none to these.


  17. The minimum compressive strength of Ilnd class bricks should be

  18. A.

    75 kg/cm2

    B.

    90 kg/cm2

    C.

    100 kg/cm2

    D.

    120 kg/cm2

    E.

    150 kg/cm2.


  19. Stuco paints are suitable for

  20. A.

    stone masonry

    B.

    brick walls

    C.

    both (a) and (b)

    D.

    neither (a) nor (b).