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  • Question
  • 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.

  • Correct Answer
  • All the above. 


  • Building Materials problems


    Search Results


    • 1. A good quality stone absorbs water less than

    • Options
    • A. 5%
    • B. 10%
    • C. 15%
    • D. 20%
    • E. 25%.
    • Discuss
    • 2. Shingle is

    • Options
    • A. decomposed laterite
    • B. crushed granite
    • C. water bound pebbles
    • D. air weathered rock.
    • Discuss
    • 3. Name the type of cement from the following for canal linings :

    • Options
    • A. sulphate resisting cement
    • B. rapid hardening cement
    • C. quick setting cement
    • D. pozzuolana cement.
    • Discuss
    • 4. Minimum of 40% of iron, is available in

    • Options
    • A. Magnetite
    • B. Red haemetite
    • C. Limonite
    • D. Siderite
    • E. Black band.
    • Discuss
    • 5. A badly mixed cement concrete results in

    • Options
    • A. segregation
    • B. bleeding
    • C. honey combing
    • D. none to these.
    • Discuss
    • 6. Mastic asphalt is generally used for

    • Options
    • A. damp proof course
    • B. water proof layer
    • C. partition walls
    • D. both (a) and (b).
    • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. 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


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