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  • Question
  • Fibre glass


  • Options
  • A. retains heat-longer
  • B. has a higher strength to weight ratio
  • C. is shock proof and fire retardent
  • D. does not decay
  • E. all the above.

  • Correct Answer
  • all the above. 


  • Building Materials problems


    Search Results


    • 1. The variety of pig iron used for manufacture of wrought iron, is

    • Options
    • A. Bessemer pig
    • B. Grey or foundry pig
    • C. White forge pig
    • D. Mottled pig.
    • Discuss
    • 2. Pick up the hypabyssal rock from the following:

    • Options
    • A. Granite
    • B. Dolerite
    • C. Basalt
    • D. All the above.
    • Discuss
    • 3. Depending on the chemical composition and mechanical properties, iron may be classified as

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

    • Options
    • A. is brittle
    • B. warps due to changes in humidity
    • C. strength is lowered when saturated by water
    • D. all the above.
    • Discuss
    • 5. In the method of condensation polymerization,

    • Options
    • A. low-molecular substances are removed from the high molecular substance
    • B. the reaction proceeds with an evolution of ammonia
    • C. the reaction proceeds with an evolution of hydrogen chloride
    • D. all the above.
    • Discuss
    • 6. Brittleness of cold is due to an excess of

    • Options
    • A. sulphur
    • B. carbon
    • C. phosphorus
    • D. silicon.
    • Discuss
    • 7. The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

    • Options
    • A. Cementation process
    • B. Crucible process
    • C. Bessemer process
    • D. Open hearth process.
    • Discuss
    • 8. Kaolin is chemically classified as

    • Options
    • A. metamorphic rock
    • B. argillaceous rock
    • C. calcareous rock
    • D. silicious rock.
    • Discuss
    • 9. Initial setting time of cement for asbestos cement products should be not less than

    • Options
    • A. 30 minutes
    • B. 50 minutes
    • C. 75 minutes
    • D. 90 minutes.
    • Discuss
    • 10. The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called

    • Options
    • A. Plutonic rocks
    • B. Hypabyssal rocks
    • C. Volcanic rocks
    • D. Igneous rocks.
    • Discuss


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