Question

refractory should possess the ability to be perfectly
a) conducting
b) isolating
c) isobaric
d) fused at conditions of uses

Answer 1

fused at conditions of uses

Answer 2

Refractory should possess the ability to be perfectly d) fused at conditions of uses.

Explanation:

Refractory materials are those substances which are mainly used in furnaces, incinerators, kilns, and reactors. They are basically non-metallic materials which have such physical and chemical properties that make them stable and also reactive with the exposed to environments at very high temperatures.