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  • Question

  • Porcelain is used as :


  • Options
  • A. sanitary wares
  • B. electric insulators
  • C. storage vessels
  • D. reactor chambers
  • E. All of the above.

  • Correct Answer
  • reactor chambers 

    • Building Materials problems

    Search Results

    • 1. The percentage of alumina and silica in good fire clay vary respectively is

    • Options
    • A. 25, 75
    • B. 30, 70
    • C. 35, 65
    • D. All of these.
      • Discuss
    • 2. If the ore impurities is

    • Options
    • A. clay, lime stone is used as flux
    • B. lime stone, clay is used as flux
    • C. quartz, lime stone and argallaceous iron ores are used as flux
    • D. All the above.
      • Discuss
    • 3. The property by virtue of which lime sets under water, is known as

    • Options
    • A. slacking
    • B. setting
    • C. hydraulicity
    • D. calcining.
      • Discuss
    • 4. Dolomite is a lime stone which contains carbonate of magnesia upto

    • Options
    • A. 15%
    • B. 20%
    • C. 25%
    • D. 35%
    • E. 45%.
      • Discuss
    • 5. The presence of sand in brick earth prevents:

    • Options
    • A. cracking of bricks
    • B. shrinkage of bricks
    • C. warping of bricks
    • D. none of these.
      • Discuss
    • 6. Pegmatite is a/an

    • Options
    • A. intrusive igneous rock
    • B. extrusive igneous rock
    • C. sedimentary rock
    • D. metamorphic rock.
      • Discuss
    • 7. To retard the initial setting time of cement, the compound responsible, is

    • Options
    • A. Tricalcium silicate
    • B. Gypsum
    • C. Di-calcium silicate
    • D. Tri calcium aluminate.
      • Discuss
    • 8. The most important constituent of an oil paint, is

    • Options
    • A. thinner
    • B. vehicle
    • C. pigment
    • D. base
    • E. all the above.
      • Discuss
    • 9. Lime putty

    • Options
    • A. is made from hydraulic lime
    • B. is made by adding lime to water
    • C. can be used only upto three days
    • D. may be obtained from drying lime water mix passing through IS sieve No. 300
    • E. all of above.
      • Discuss
    • 10. According to IS 399-1963, the weight of the timber is specified at

    • Options
    • A. 8% moisture content
    • B. 10% moisture content
    • C. 12% moisture content
    • D. 14% moisture content.
      • Discuss

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