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Chemical Engineering · Q149

Refractory Technology

Engineering and GATE · Chemical Engineering · question 149

Q149

Magnesite chrome refractories

A.
Have better spalling resistance than chrome magnesite refractories
Answer
B.
Have very low thermal co-efficient of expansion
C.
Are not at all resistant to the corrosive action of iron oxide
D.
Have very low (50 kg/cm2) cold crushing strength (C.C.S.) and can not be used in metalcase form

Answer: Option A

Solution

Answer: Option A
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