Refractory Technology Mcqs for Chemical

Q.  Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory_________________?

a. Mortars
b. Cements
c. Castables
d. None of these


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MCQs:  Maximum safe working temperature for fireclay bricks is about __________ °C?
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MCQs:  With increasing alumina content, the fusion point of high alumina refractories__________________?
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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?
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