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Refractory Technology
silicon carbide refractories have very low
refractoriness (< 1700°C).
thermal conductivity.
resistance to thermal shock.
none of these.
Correct Answer:
none of these.
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Refractory Technology
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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