A(n) ____ separates iron from waste materials and sinters ore and flue dust.

A. electric arc furnace
B. blast furnace
C. induction furnace
D. casting furnace


Answer: B

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What will be an ideal response?

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What will be an ideal response?

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Answer the following statement true (T) or false (F)

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The derivative mode provides a ____ action when the difference between the set point and measured variable is reducing.

A. boost B. breaking

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