Fireclay refractories have __________________?

Refractory Technology 05/12/2023

A. Low co-efficient of thermal expansion
B. Poor thermal spalling resistance
C. Tendency to expand unduly high during firing
D. Very high cost

Related Mcqs:

    Which is the most stable crystalline form of silica at room temperature ?
    A. Quartz B. Cristobalite C. Tridymite D. None of these...
    Thermal spalling mainly occurs during _____________ of furnaces?
    A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B....
    Magnesite bricks are used in those parts of furnaces, which are __________________?
    A. Subjected to temperature fluctuation B. Required to resist corrosive basic slag C. Subjected to high load D. None of these...
    Fireclay bricks are used in the___________________?
    A. Furnaces allowed to cool frequently B. Flues C. Chimney linings D. All A., B. and C....
    Natural silica___________________?
    A. Mainly contains quartz B. Is not stable at high temperature C. Transforms to other allotropic forms i.e. Tridymite and Cristobalite involving very high volume changes D. All A., B. and C....

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