Q
Carbon refractories_____________________?
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A
A. Do not burn/oxidise, when exposed to air on heating
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B
B. Are not attacked by slags, as they are not wetted by melts
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C
C. Do not resist temperature fluctuations
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D
D. Have extremely low thermal & electrical conductivities
Correct Answer:
B. B. Are not attacked by slags, as they are not wetted by melts