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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 4
1.
An ideal refractory should have high
spalling rate
fusion point
shrinkage ability
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Ganister is a source of the
silica
periclase
lime
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Which brick undergoes maximum shrinkage on drying ?
Tar bonded dolomite bricks
Fireclay bricks
Magnesite bricks
Chromite bricks
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Which is the stable form of silica upto 1470°C ?
Quartz
Cristobalite
Tridymite
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Hot face insulating linings of high purity alumina fused mullite are used, where
very high temperatures are involved.
highly reducing conditions are involved.
presence of iron or silica is harmful.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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