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  • Question
  • 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.

  • Correct Answer
  • All the above. 


  • Building Materials problems


    Search Results


    • 1. 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
    • 2. Bessemer process is used for the manufacture of

    • Options
    • A. Pig iron
    • B. cast iron
    • C. Wrought iron
    • D. Steel.
    • Discuss
    • 3. 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
    • 4. Which one of the following is an air binding material?

    • Options
    • A. Gypsum
    • B. Acid-resistant cement
    • C. Quick lime
    • D. All of these.
    • Discuss
    • 5. 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
    • 6. 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
    • 7. Pick up correct statement from the following:

    • Options
    • A. Fibre boards are used for thermal and acoustic control
    • B. Fibre boards are used for light weight standing members
    • C. Fibre boards are obtained by impregnating a resin product on fibres
    • D. all the above.
    • Discuss
    • 8. Dry rot

    • Options
    • A. cracks the timber
    • B. reduces the strength of timber
    • C. reduces the timber to powder
    • D. shrinks the timber
    • E. spoils the appearance of timber.
    • Discuss
    • 9. Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as

    • Options
    • A. quick setting cement
    • B. rapid hardening cement
    • C. white cement
    • D. low heat Portland cement.
    • Discuss
    • 10. German silver is an alloy of

    • Options
    • A. zinc, lead and nickel
    • B. silver, gold and lead
    • C. copper, nickel and zinc
    • D. copper, brass and zinc
    • E. brass, silver and zinc.
    • Discuss


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