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Civil Engineering :: Building Materials

  1. Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction and 20 cm in the other direction, is called a

  2. A.

    cant

    B.

    deal

    C.

    baulk

    D.

    baulk


  3. Quick lime (or caustic lime)

  4. A.

    is obtained by the calcination of pure lime stone

    B.

    has great affinity to moisture

    C.

    is amorphous

    D.

    All the above.


  5.  

    Pick up the correct statement from the following:

  6. A.

    soft stones are required for carving

    B.

    light stones are required for arches

    C.

    hard stones are required to stand high pressure

    D.

    All the above.


  7. Name the type of cement from the following for canal linings :

  8. A.

    sulphate resisting cement

    B.

    rapid hardening cement

    C.

    quick setting cement

    D.

    pozzuolana cement.


  9. Mastic asphalt is generally used for

  10. A.

    damp proof course

    B.

    water proof layer

    C.

    partition walls

    D.

    both (a) and (b).


  11. Black marble is generally found in the district of

  12. A.

    Jodhpur

    B.

    Jaipur

    C.

    Jabalpur

    D.

    Jaisalmer

    E.

    Pune.


  13. The most fire resistant paints are :

  14. A.

    enamel paints

    B.

    aluminium paints

    C.

    asbestos paints

    D.

    cement paints.


  15. If P is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is

  16. A.

    0.70 P

    B.

    0.75 P

    C.

    0.80 P

    D.

    0.85 P

    E.

    0.90 P.


  17.  

    A pug mill is used for

  18. A.

    softening brick earth

    B.

    moulding brick earth

    C.

    tempering brick earth

    D.

    providing brick earth

    E.

    all the above.


  19. A good brick earth should contain :

  20. A.

    about 20% to 30% of alumina

    B.

    about 50% to 60% of silica

    C.

    not more than 5% of lime

    D.

    about 5 to 6% of oxide of lime

    E.

    All the above.