Insulating refractories should have Options: A . &nbsphigh porosity B . &nbsplow thermal conductivity C . &nbspboth (a) and (b) D . &nbspneither (a) not (b)

Insulating refractories should have

Question

Insulating refractories should have

Options:

A . high porosity

B . low thermal conductivity

C . both (a) and (b)

D . neither (a) not (b)

Answer: Option B
Answer: (b).low thermal conductivity

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