Chemical Engineering — Test 115

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Question 1

In chemical process equipments, the conical bottom heads used, usually has an apex angle of____________________?

Question 2

Si percentage in silica refractories used in the walls of coke oven is about______________________?

Question 3

Chrome magnesite bricks are_________________?

Question 4

Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as ______________ percent?

Question 5

Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant ?

Question 6

Lower part of hot metal mixer are lined with _____________ bricks?

Question 7

Bauxite calcining rotary kilns are lined with ________________ bricks?

Question 8

Spalling of a refractory means its____________________?

Question 9

The linear thermal expansion of _______________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent?

Question 10

Chrome magnesite is not used in the ____________________?