Which of the following substances is not used as an additive to flue gases from a furnace to lower their dew point?

Furnace Technology MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Furnace Technologychemical-engineering › furnace-technology
Published
11 Mar 2019
Last updated
28 May 2026

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Explanation

Ammonia, powdered dolomite, and alkaline compounds are all additives commonly used to reduce the dew point of flue gases. Therefore, none of the listed options are excluded from this purpose.

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