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  • Question
  • Good quality sand is never obtained from


  • Options
  • A. river
  • B. nala
  • C. sea
  • D. gravel powder.

  • Correct Answer
  • sea 


  • Building Materials problems


    Search Results


    • 1. Refractory bricks resist

    • Options
    • A. high temperature
    • B. chemical action
    • C. dampness
    • D. all the above.
    • Discuss
    • 2. Non acid-resistant asbestos is :

    • Options
    • A. tremolite asbestos
    • B. chrysolite abestos
    • C. amosite absestos
    • D. none of these.
    • Discuss
    • 3. Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:

    • Options
    • A. Alumina
    • B. Lime
    • C. Ironoxide
    • D. Magnesia.
    • Discuss
    • 4. The pigment used in paints for corrosive resistance, is

    • Options
    • A. white lead
    • B. ferrous oxide
    • C. zinc white
    • D. red lead
    • E. gypsum.
    • Discuss
    • 5. For sanitary pipes and chemical stonewares,

    • Options
    • A. salt glazing is used
    • B. lead glazing is used
    • C. opaque glazing is used
    • D. None of these.
    • Discuss
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. The fire clay contains pure

    • Options
    • A. lime
    • B. oxide of iron
    • C. hydrated aluminium silicate
    • D. magnesium.
    • Discuss
    • 10. A ferrous metal is

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


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