Which of the following is not a core sand property?(a) Dry strength(b) Hardness(c) Low collapsibility(d) Good PermeabilityThe question was posed to me during a job interview.This intriguing question comes from Indian Sand and core sand topic in chapter Molding and Core Sands of Casting-Forming-Welding I

Which of the following is not a core sand property?(a) Dry strength(b)

1.	Which of the following is not a core sand property?(a) Dry strength(b) Hardness(c) Low collapsibility(d) Good PermeabilityThe question was posed to me during a job interview.This intriguing question comes from Indian Sand and core sand topic in chapter Molding and Core Sands of Casting-Forming-Welding I
Answer» RIGHT answer is (c) Low collapsibility The best explanation: Dry strength, hardness and a GOOD amount of permeability are a few properties of CORE SAND. Low collapsibility is not any of the property of core sands, in fact, core sands are SUPPOSED to have high collapsibility.

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