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Which material is applied to the hearth if the process is basic?

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in Casting-Forming-Welding II by (119k points)
Which material is applied to the hearth if the process is basic?

(a) Silica

(b) Dolomite

(c) Silicon monoxide

(d) Xenon di fluoride

The question was asked in an interview.

I need to ask this question from Open Hearth Surface topic in chapter Metal Furnace and Practice of Casting-Forming-Welding II

1 Answer

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Best answer
Correct choice is (b) Dolomite

Explanation: None.

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