1
GATE PI 2015
Numerical
+2
-0
In a metal casting process, molten copper alloy is poured into a sand mould. The level of molten metal in the pouring basin is at a height of $$300$$ $$mm$$ from the runner having diameter of $$10$$ $$mm.$$ If the density and melting temperature of molten copper alloy are $$9000$$ $$kg/{m^3}$$ and $${1000^ \circ }C.$$ respectively then the rate of flow of molten metal into the mould neglecting friction and other losses, in $$c{m^3}/s,$$ is ______________.
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2
GATE PI 2014
MCQ (Single Correct Answer)
+2
-0.6
For a given volume of a riser, if the solidification time of the molten metal in riser needs to be quadrupled, the surface area of the riser should be made
3
GATE PI 2012
MCQ (Single Correct Answer)
+2
-0.6
A mold having dimensions $$100 \times 90 \times 20$$ (all in $$mm$$) is filled with molten metal througgh a gate with height $$'h'$$ and $$C.S$$ area $$A,$$ the mould filling time is $${t_1}$$. The height is now quadrupled and the cross sectional area is halved. The corresponding filling time is $${t_2}$$. The ratio $${t_2}/{t_1}$$ is
4
GATE PI 2011
MCQ (Single Correct Answer)
+2
-0.6
In a sand casting process, a sphere and a cylinder of equal volumes are separately cast from the same molten metal under identical conditions. The height and diameter of the cylinder are equal. The ratio of the solidification time of the sphere to that of the cylinder is
Questions Asked from Casting Process (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE PI 2017 (1)
GATE PI 2016 (1)
GATE PI 2015 (1)
GATE PI 2014 (1)
GATE PI 2012 (1)
GATE PI 2011 (1)
GATE PI 2010 (1)
GATE PI 2009 (1)
GATE PI 2008 (1)
GATE PI 2007 (3)
GATE PI 2006 (1)
GATE PI 2005 (2)
GATE PI 2004 (1)
GATE PI 2003 (3)
GATE PI 2002 (5)
GATE PI 1995 (1)
GATE PI 1994 (1)
GATE PI 1993 (1)
GATE PI 1992 (1)
GATE PI 1990 (1)
GATE PI 1989 (2)
GATE PI Subjects
Fluid Mechanics
Metrology
Theory of Machines
Engineering Mathematics
Machine Tools and Machining
Industrial Engineering
Engineering Mechanics
Strength of Materials
Thermodynamics
Machine Design
Casting
Joining of Materials
Metal Forming