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Civil Engineering :: Building Materials

  1. The slenderness ratio for masonry walls should not be more than

  2. A.

     10

    B.

     20

    C.

     30

    D.

     40


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

  4. A.

     Hydraulic lime

    B.

     Fat lime

    C.

     Quick lime

    D.

     Pure lime


  5. Pick up the correct statement from the following: Method of sawing timber

  6. A.

     Tangentially to annual rings, is known as tangential method

    B.

     In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method

    C.

     Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing

    D.

     All the above


  7. Inner part of a timber log surrounding the pitch, is called

  8. A.

     Sapwood

    B.

     Cambium layer

    C.

     Heart wood

    D.

     None to these


  9. For high grade instruments the steel preferred to, is

  10. A.

     Cast steel

    B.

     Bessemer steel

    C.

     Mild steel

    D.

     Whitworth compressed steel


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

  12. A.

     0.70 P

    B.

     0.75 P

    C.

     0.80 P

    D.

     0.85 P


  13. The type of roof which slopes in two directions with a break in the slope on each side is known as

  14. A.

     gable roof

    B.

     hip roof

    C.

     gambrel roof

    D.

     mansard roof


  15. The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called

  16. A.

     Cementation process

    B.

     Crucible process

    C.

     Bessemer process

    D.

     Open hearth process


  17. Compared to mild steel, cast iron has
    (i) High compressive strength
    (ii) High tensile strength
    (iii) Low compressive strength
    (iv) Low tensile strength

  18. A.

     (i) and (ii)

    B.

     (ii) and (iii)

    C.

     (iii) and (iv)

    D.

     (i) and (iv)


  19. Plywood has the advantage of

  20. A.

     Greater tensile strength in longer direction

    B.

     Greater tensile strength in shorter direction

    C.

     Same tensile strength in all directions

    D.

     None of the above