Highly porous refractory bricks are Options: A . &nbspless susceptible to chemical attack by molten fluxes and gases etc. B . &nbspvery strong. C . &nbsphaving very high thermal conductivity. D . &nbspnone of these.

Highly porous refractory bricks are

Question

Highly porous refractory bricks are

Options:

A . less susceptible to chemical attack by molten fluxes and gases etc.

B . very strong.

C . having very high thermal conductivity.

D . none of these.

Answer: Option D
Answer: (d).none of these.

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