Casting yield of a non-pressurized gating system is _____(a) very high(b) 80%(c) very less(d) 50%The question was posed to me by my school teacher while I was bunking the class.The question is from Gating Design topic in section Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I

Casting yield of a non-pressurized gating system is _____(a) very high

1.	Casting yield of a non-pressurized gating system is _____(a) very high(b) 80%(c) very less(d) 50%The question was posed to me by my school teacher while I was bunking the class.The question is from Gating Design topic in section Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I
Answer» Right option is (c) very less To explain: Tapered sprues are invariably used with an unpressurized system. Casting yield of a non-pressurized gating system gets REDUCED because of the LARGE metal INVOLVED in the runner and gates. This makes the WASTAGE of material, to AVOID this, a pressurized gating system is used.

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