Fireclay bricks are unsuitable for lining which of the following structures?

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

PPSCFPSCNTSPakistan govt jobs
Subject
Refractory Technologychemical-engineering › refractory-technology
Published
8 Mar 2019
Last updated
28 May 2026

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Explanation

Fireclay bricks are commonly used for lining cupolas, gas producers, and the roofs of open hearth furnaces due to their heat resistance. However, they are not appropriate for lining the bottom of hot metal mixers because this area requires materials with higher mechanical strength and resistance to slag corrosion.

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