Q.

What is hearth in a furnace?

A. the electrodes are often called hearth
B. the walls of the furnace
C. the bowl shaped bottom of the furnace
D. the dome shaped roof of the furnace
Answer» C. the bowl shaped bottom of the furnace
Explanation: the hearth is that bowl shaped bottom of the furnace. it is made up of a high refractory material (bricked and granular).

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Manufacturing Technology 1

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