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What is the green compression strength of core sand mixture for general purpose?(a) 1/5 kg/cm^2(b) 1/6 kg/cm^2(c) 1/7 kg/cm^2(d) 1/8 kg/cm^2 |
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Answer» Right answer is (c) 1/7 kg/cm^2 Explanation: The green compression strength of core sand mixture for general purpose is 1/7 kg/cm^2, whereas the dry compression strength of a core sand mixture is found to be 70 kg/cm^2. |
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