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  • Question
  • Which one of the following is an air binding material?


  • Options
  • A. Gypsum
  • B. Acid-resistant cement
  • C. Quick lime
  • D. All of these.

  • Correct Answer
  • All of these. 


  • Building Materials problems


    Search Results


    • 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

    • Options
    • A. cant
    • B. deal
    • C. baulk
    • D. strip.
    • Discuss
    • 2. Cement is said to be of good quality if

    • Options
    • A. its colour is not greenish grey
    • B. one feels cool by thrusting one's hand in the cement bag
    • C. it is not smooth when rubbed in between fingers
    • D. a handful of cement thrown into a bucket of water does not float
    • E. none of these.
    • Discuss
    • 3. The lime which contains mainly calcium oxide and slacks with water, is

    • Options
    • A. fat lime
    • B. quick lime
    • C. hydraulic lime
    • D. poor lime
    • E. none of these.
    • Discuss
    • 4. Mastic asphalt is generally used for

    • Options
    • A. damp proof course
    • B. water proof layer
    • C. partition walls
    • D. both (a) and (b).
    • Discuss
    • 5. A good brick earth should contain :

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

    • Options
    • A. 0.70 P
    • B. 0.75 P
    • C. 0.80 P
    • D. 0.85 P
    • E. 0.90 P.
    • Discuss
    • 7. Bessemer process is used for the manufacture of

    • Options
    • A. Pig iron
    • B. cast iron
    • C. Wrought iron
    • D. Steel.
    • Discuss
    • 8. Smith's test of stones is performed to find out

    • Options
    • A. the presence of soluble matter of stone
    • B. the compressive strength of the stone
    • C. the hardness of the stone
    • D. the toughness of the stone.
    • Discuss
    • 9. Pick up the correct statement from the following:

    • Options
    • A. The phenol is carbolic acid
    • B. The phenol is either extracted from coal-tar or prepared from benzene
    • C. Phenol reacts with formaldehyde, to form phenol formaldehyde resin
    • D. The plastics prepared from phenol-formaldehyde are used for paints, varnishes, w.c. seats
    • E. All the above.
    • Discuss
    • 10. Pick up the correct statement from the following:

    • Options
    • 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.
    • Discuss


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