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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 4
11.
Porosity of silica bricks varies from __________ percent.
5 to 10
20 to 30
45 to 60
60 to 75
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Colour of fireclay bricks is
light buff to reddish buff
yellow
black
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Rate of slag attack on refractories increases with rise in temperature due to the
decreased viscosity of slag.
increased thermal conductivity of brick.
oxidising condition in the furnace.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which of the following is not a high alumina refractory material ?
Kyanite
Sillimanite
Diaspore
Periclase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Magnesite chrome bricks are used in the
roof lining of basic open hearth & other basic furnaces.
reheating furnaces.
soaking pits.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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