1
GATE PI 2008
+2
-0.6
In sand casting of hallow part of lead, a cylindrical core of diameter $$120mm$$ and height $$180mm$$ is placed inside the mould cavity. The densities of core material and lead are $$1600kg/{m^3}$$ and $$11300kg/{m^3}$$ respectively. The net force (in $$N$$) that tends to lift the core during pouring of molten metal will be
A
$$19.7$$
B
$$64.5$$
C
$$193.7$$
D
$$257.6$$
2
GATE PI 2007
+2
-0.6
In a sand casting process, a sprue of $$10mm$$ base diameter and $$250mm$$ height leads to a runner which fills a cubical mold cavity of $$100mm$$ size.

The mold filling time in seconds is

A
$$2.8$$
B
$$5.78$$
C
$$7.54$$
D
$$8.41$$
3
GATE PI 2007
+2
-0.6
In a sand casting process, a sprue of $$10mm$$ base diameter and $$250mm$$ height leads to a runner which fills a cubical mold cavity of $$100mm$$ size.

The volume flow rate (in $$m{m^3}/s$$) is

A
$$0.8 \times {10^5}$$
B
$$1.1 \times {10^5}$$
C
$$1.7 \times {10^5}$$
D
$$2.3 \times {10^5}$$
4
GATE PI 2007
+2
-0.6
Match the following A
$$P - 4,\,\,Q - 1,\,\,R - 3,\,\,S - 2$$
B
$$P - 2,\,\,Q - 4,\,\,R - 3,\,\,S - 1$$
C
$$P - 3,\,\,Q - 4,\,\,R - 1,\,\,S - 2$$
D
$$P - 3,\,\,Q - 2,\,\,R - 1,\,\,S - 4$$
GATE PI Subjects
Fluid Mechanics
Metrology
Theory of Machines
Engineering Mathematics
Heat Transfer
Machine Tools and Machining
Industrial Engineering
Engineering Mechanics
Strength of Materials
Thermodynamics
Machine Design
Casting
Joining of Materials
Metal Forming
EXAM MAP
Joint Entrance Examination