1.

Air blasts are provided for forced cooling of sand after muller operation.(a) True(b) FalseThis question was posed to me in an internship interview.Origin of the question is Molding Sand Preparation topic in section Sand Preparation of Casting-Forming-Welding I

Answer»

Correct choice is (a) True

Explanation: Mullers USUALLY need approximately 33 to 50 PERCENT of mulling TIME. In a high speed sand preparation UNIT, after the muller operation is complete, to COOL the sand, air blasts are used.



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