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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 3
1.
__________ is not a single oxiderefractory.
Zirconia
Silicon carbide
Magnesia
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks.
silica
fireclay
magnesite
zirconia
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
High alumina refractory compared to fireclay bricks have
less load bearing capacity.
less resistance to slag attack.
low refractoriness.
high resistance to thermal shock and creep.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Refractory bricks with lower permeability is produced by using
higher firing temperature.
higher moulding pressure.
finer grog size.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Refractory bricks having lower porosity have
high insulating properties
low heat capacity
low thermal conductivity
greater strength
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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