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Chemical Engineering - Refractory Technology

Exercise : Refractory Technology - Section 2
16.
Si percentage in silica refractories used in the walls of coke oven is about
45
60
80
95
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material?
aluminium phosphate
water
lime
plaster of paris
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
High thermal conductivity of a refractory material is not important, when it is to be used in the
coke oven regenarators
muffle furnace
blast furnace
recuperators
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Maximum safe working temperature for fireclay bricks is about __________ °C.
1150
1300
1450
1550
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Ferromagnetic ceramic material is not used in the
thermal insulation
transformers
magnetic switches
television sets
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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