Question

Smallest in-gate area in the pressurized gating system causes_____

(a) turbulency

(b) low velocity

(c) low viscosity

(d) smooth running of molten metal

This question was addressed to me in my homework.

I want to ask this question from Gating Design topic in division Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I

Answer 1

Correct option is (a) turbulency

Best explanation: In the case of a pressurized gating system, due to the smallest in-gate area it maintains a back pressure throughout the gating system. Because of this back pressure in the gating system, the metal is more turbulent and generally flows full.