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MCQs: Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2. On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as ______________ kg/cm2?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of______________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ____________ °C?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Spray test determines the _____________ of refractories?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Fireclay refractories have __________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Dolomite bricks have good resistance to attack by_____________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Zirconia refractories are not used in_____________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The highest melting pure oxide (m.p. > 3000°C)is___________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The largest consumer of refractories is the _______________ industry?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Crushing strength of a refractory____________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Colour of fireclay bricks is_________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Highest melting (m.p = 3070°C) oxide refractory is__________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Dilatometer is used for the determination of ______________ of refractories?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for _____________ bricks?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The maximum linear expansion of silica bricks during firing is about ______________ percent?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Hot blast main (carrying air at 1000°C) in blast furnace are lined with ______________ bricks?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: With decrease in porosity, the ______________ of the refractories decreases?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: ______________ bricks should not be used in oxidising atmosphere?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Magnesite bricks have poor resistance to attack by _____________ slag?
Category: Chemical Engineering Mcqs, Published by: teswesm
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