1.

In the gate area for non-pressurized casting gating ratio a:b:c? (gating ratio = a: b: c where, a = cross-sectional area of sprue, b: cross-sectional area of runner, c = total cross-sectional area of ingates).

A. 1:2:2
B. 2:2:1
C. 1:4:4
D. 1:4:2
Answer» D. 1:4:2


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