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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 1
46.
Refractories are dried in the
rotary kilns
tunnel kilns
sun
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the
hearth of the blast furnace.
nuclear reactors, missiles & space crafts.
insulation of high temperature furnaces.
roof of electric furnaces.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Hot metal runner in blast furnace are lined with __________ bricks.
silica
carborundum
fireclay
magnesite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Spray test determines the __________ of refractories.
resistance to slag penetration
resistance to CO attack
RUL
permanent linear change
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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