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It is always advisable to have negligible amount of sulphur in the solid fuels used in the furnace.

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in Casting-Forming-Welding II by (119k points)
It is always advisable to have negligible amount of sulphur in the solid fuels used in the furnace.

(a) True

(b) False

I had been asked this question during a job interview.

I'd like to ask this question from Selection of Remelting Furnace topic in portion Metal Furnace and Practice of Casting-Forming-Welding II

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by (701k points)
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Best answer
Right choice is (a) True

The best I can explain: The flue gases from the fuel makes direct contact with the metals used in the furnace, the type of fuel selected is very important. For example, many metals cannot tolerate sulphur in the fuel. Solid fuels basically create particulate matter which can interrupt the metal placed inside the furnace. To avoid this problem, gaseous or liquid fuel is used in the place of solid fuels.

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