What is the dry compression strength of core sand mixture for general purpose?(a) 50 kg/cm^2(b) 60 kg/cm^2(c) 70 kg/cm^2(d) 80 kg/cm^2I got this question in an international level competition.Question is taken from Preparation of Core Mix in chapter Molding and Core Sands of Casting-Forming-Welding I

What is the dry compression strength of core sand mixture for general

1.	What is the dry compression strength of core sand mixture for general purpose?(a) 50 kg/cm^2(b) 60 kg/cm^2(c) 70 kg/cm^2(d) 80 kg/cm^2I got this question in an international level competition.Question is taken from Preparation of Core Mix in chapter Molding and Core Sands of Casting-Forming-Welding I
Answer» Correct CHOICE is (c) 70 kg/cm^2 The EXPLANATION is: The DRY compression strength of core sand mixture for GENERAL purpose is 70 kg/cm^2, and the dry tensile strength of the of a core sand mixture is calculated to be 17 kg/cm^2.

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