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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 4
16.
Mullite is chemically represented by
Al2O3 . 2SiO2
3Al2O3 . 2SiO2
Al2O3 . SiO2
2Al2O3 . 3SiO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
__________ bricks are used in the burning zone of a cement rotary kiln.
High alumina
Fireclay
Thoria
Silicon carbide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be
oxidising
neutral
either (a) or (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Roof of a basic open hearth furnace is lined with __________ bricks.
silica
fireclay
dolomite
magnesite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
High alumina refractories are used in the
dome of blast furnace stoves.
electric arc furnace roof.
glass melting furnaces.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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