An insulating refractory brick should have high poro... - Solved MCQs & Answer

1256Chemical EngineeringMedium

An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?

ACork

BSand

CSaw dust

DChemically prepared foam

Correct answer

B. Sand

Explanation

The correct answer is Sand.

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