Which of the following factor is not to be considered while selecting a refractory?(a) Conductivity(b) Expansion(c) Size of the particle(d) PermeabilityThe question was asked during an interview.This intriguing question originated from Refractory Sands topic in section Molding and Core Sands of Casting-Forming-Welding I

Which of the following factor is not to be considered while selecting

1.	Which of the following factor is not to be considered while selecting a refractory?(a) Conductivity(b) Expansion(c) Size of the particle(d) PermeabilityThe question was asked during an interview.This intriguing question originated from Refractory Sands topic in section Molding and Core Sands of Casting-Forming-Welding I
Answer» The correct OPTION is (d) Permeability Explanation: CONDUCTIVITY, thermal EXPANSION and size of the particle are few of the factors needed to be CONSIDERED while selecting a refractory and not permeability.

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