Refractory Technology Mcqs for Chemical


Q.  Grog__________________?

a. Contains both alumina and silica
b. Is crushed firebrick
c. Is a non-plastic material
d. All A., B. and C.


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Refractoriness/fusion points of ‘Superduty’ refractories is _______________ °C?
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MCQs:  With increase in the porosity, thermal spalling resistance of fireclay brick___________________?
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MCQs:  Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except ?
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MCQs:  Quartz is___________________?
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MCQs:  Water content in ground refractory material to be shaped into bricks by hand moulding is about ______________ percent?
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MCQs:  Maximum alumina content in high alumina refractory can be as high as _____________ percent?
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MCQs:  Panel test determines the _____________ of refractories?
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MCQs:  Chemically, mullite refractories is____________________?
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MCQs:  Presence of MgO in alumino-silicate refractories _______________ its refractoriness?
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MCQs:  Fireclay bricks are not used in the _________________?
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MCQs:  High porosity refractory bricks have _______________?
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MCQs:  Magnesite refractories are generally not used in the___________________?
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MCQs:  Thermal diffusivity of a refractory brick is high, when its ____________ is high?
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MCQs:  With increase in the alumina content, the refractoriness of high alumina refractories_______________?
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MCQs:  Test piece for determination of RUL of a refractory is heated in a/an____________________?
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MCQs:  Magnesite refractories are used for the construction of those furnaces, which are________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Outer combustion chamber of blast furnace stove is lined with _____________ bricks?
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MCQs:  Roof of a basic electric furnace is made of _____________ bricks?
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MCQs:  Faster rate of drying of moulded refractories results in high _____________ of refractories?
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MCQs:  What is the value of ‘q’ for saturated liquid feed to a distillation column ?
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