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  • Question
  • The fire clay contains pure


  • Options
  • A. lime
  • B. oxide of iron
  • C. hydrated aluminium silicate
  • D. magnesium.

  • Correct Answer
  • hydrated aluminium silicate 


  • Building Materials problems


    Search Results


    • 1. The rocks having alumina or clay as their major constituents, are known as

    • Options
    • A. siliceous rocks
    • B. argillaceous rocks
    • C. calcareous rocks
    • D. sedimentary rocks
    • E. igneous rocks.
    • Discuss
    • 2. The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called

    • Options
    • A. Plutonic rocks
    • B. Hypabyssal rocks
    • C. Volcanic rocks
    • D. Ignoeous rocks.
    • Discuss
    • 3. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is

    • Options
    • A. 80 : 13 : 7
    • B. 70 : 20 : 10
    • C. 60 : 35 : 5
    • D. none of these.
    • Discuss
    • 4. Good quality sand is never obtained from

    • Options
    • A. river
    • B. nala
    • C. sea
    • D. gravel powder.
    • Discuss
    • 5. Refractory bricks resist

    • Options
    • A. high temperature
    • B. chemical action
    • C. dampness
    • D. all the above.
    • Discuss
    • 6. A ferrous metal is

    • Options
    • A. cast iron
    • B. wrought iron
    • C. steel
    • D. all the above.
    • Discuss
    • 7. Blister steel

    • Options
    • A. is obtained by cementation process
    • B. is full of fissures and cavities
    • C. can not be forged
    • D. can be easily welded
    • E. all the above.
    • Discuss
    • 8. When a brick is immersed in water for 24 hours and then dried, if

    • Options
    • A. no grey or white deposits appear on the surface, the brick is free from soluble salts
    • B. 10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence
    • C. 50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence
    • D. All the above.
    • Discuss
    • 9. The base material for distemper, is

    • Options
    • A. chalk
    • B. lime
    • C. lime putty
    • D. cement wash.
    • Discuss
    • 10. Pick up the correct statement from the following:

    • Options
    • A. Acid test is done to find out the weathering quality of stones
    • B. Attrition test is done to find out the rate of wear of stones which are used in road construction
    • C. Crushing test is done to find out the compressive strength of the stone
    • D. Impact test is done to determine toughness of a stone
    • E. All the above.
    • Discuss


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