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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 1
41.
With increase in the alumina content, the refractoriness of high alumina refractories
increases
decreases
remains same
may increase or decrease
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
A steel member used in the furnace construction to take the thrust of the brickwork is called
buckstay
breast wall
armouring
baffle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
With increase in the porosity, thermal spalling resistance of fireclay brick
increases
decreases
remains same
may increase or decrease
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of
segar cones.
muffles for muffle furnaces.
insulating bricks.
crucibles used for melting of high purity metals.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Maximum alumina content in high alumina refractory can be as high as __________ percent.
30
50
70
90
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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