Thermal conductivity of refractory bricks Options: A . &nbspIncreases with decrease in porosity B . &nbspDecreases with decreases in porosity C . &nbspIs independent of its porosity and is maximum for insulating bricks D . &nbspIncreases with the amount of air entrapped in pores

Thermal conductivity of refractory bricks

Question

Thermal conductivity of refractory bricks

Options:

A . Increases with decrease in porosity

B . Decreases with decreases in porosity

C . Is independent of its porosity and is maximum for insulating bricks

D . Increases with the amount of air entrapped in pores

Answer: Option A

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