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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 2
21.
Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent.
2-3
5-7
7-12
14-20
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Fireclay bricks are never used in the
beehive oven
coke oven walls
zinc roaster
lead blast furnace
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
With increasing alumina content, the fusion point of high alumina refractories
increases.
decreases.
remains constant.
may increase or decrease ; depends on its alumina content.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Chrome magnesite bricks are used in the
side walls of soaking pits and arc furnaces.
copper melting furnaces & converters.
burner block of glass tanks.
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm2.
10
100
500
1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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