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.Management Sciences
A. Composite material containing both ceramic & metallic constituents
B. Having high strength & resistance to high temperature
C. Used in space vehicles, missiles & nuclear energy plants
D. All A., B. and C.
Related Mcqs:
- Which of the following does not occur during firing/burning of refractories ?
- A. Removal of water of hydration B. Vitrification C. Decrease in crushing strength D. Development of stable mineral form...
- Which is the stable form of silica upto 1470°C ?
- A. Quartz B. Cristobalite C. Tridymite D. None of these...
- Which is not an alumino-silicate refractory ?
- A. Fireclay bricks B. Mullite bricks C. Tar dolomite bricks D. High alumina bricks...
- Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?
- A. At the hearth bottom of the furnace on which stock is placed B. Used for furnace insulation C. Used in the roof of the furnace D. None of these...
- High alumina refractory compared to fireclay bricks have____________________?
- A. Less load bearing capacity B. Less resistance to slag attack C. Low refractoriness D. High resistance to thermal shock and creep...
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