Chemical Engineering — Test 121
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Question 1
______________ bricks should not be used in oxidising atmosphere?
Question 2
Magnesite bricks have poor resistance to attack by _____________ slag?
Question 3
Which is not a natural insulating material ?
Question 4
Which of the following is not a high alumina refractory material ?
Question 5
___________________ is the measure of the strength of refractory under the combined effect of temperature & load ?
Question 6
Which one contains minimum percentage of SiO2 ?
Question 7
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as _____________ percent?
Question 8
Mullite is chemically represented by_________________?
Question 9
High alumina refractory compared to fireclay bricks have____________________?
Question 10
Porosity of fireclay refractories is _______________ percent?