Q
Magnesite chrome refractories____________________?
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A
A. Have better spalling resistance than chrome magnesite refractories
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B
B. Have very low thermal co-efficient of expansion
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C
C. Are not at all resistant to the corrosive action of iron oxide
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D
D. Have very low (50 kg/cm2) cold crushing strength (c.c.s.), and cannot be used in metalcase
Correct Answer:
A. A. Have better spalling resistance than chrome magnesite refractories
