engineering recuitment ISRO Scientist Mechanical Mock Test Production Engineering (Manufacturing) Metal Casting
For Gating system of casting, choke area (A) may be written as [where, m = mass of casting, ρ = density of molten metal, H = effective metal height, C = efficiency factor, t = pouring time]:
1
\(A = \frac{m}{{\rho tC\sqrt {2gH} }}\)
2
\(A = \frac{{tm}}{{\rho C\sqrt {2gH} }}\)
3
\(A = \frac{{m\sqrt {2gH} }}{{\rho tC}}\)
4
\(A = \frac{{\rho m}}{{tC\sqrt {2gH} }}\)