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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 3
31.
Bottom of basic open hearth furnace are constructed of
dead burnt magnesite ramming mass.
porous fireclay bricks.
semi-silica bricks.
silicon carbide bricks.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which form of silica has the highest specific gravity ?
Quartz
Cristobalite
Tridymite
All have the same specific gravity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of
fireclay
silicon carbide
corrundum
siliceous fireclay
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
__________ is the measure of the strength of refractory under the combined effect of temperature & load.
Porosity
RUL
Specific gravity
Thermal conductivity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Fireclay bricks are not used in the
blast furnace
hot blast stove
cupola
wall of coke oven
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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