1
GATE PI 2010
MCQ (Single Correct Answer)
+1
-0.3
Solidification time of a metallic alloy casting is
A
Directly proportional to its surface area
B
Inversely proportional to the specific heat of the cast material
C
Inversely proportional to the thermal diffusivity of the mould material
D
Inversely proportional to the pouring temp
2
GATE PI 2009
MCQ (Single Correct Answer)
+1
-0.3
Hot chamber die casting is NOT suited for
A
Lead and its alloys
B
zinc and its alloys
C
Tin and its alloys
D
Aluminium and its alloys
3
GATE PI 2008
MCQ (Single Correct Answer)
+1
-0.3
In hollow cylindrical parts made by centrifugal casting, the density of the part is
A
Maximum at the outer region
B
Maximum at the inner region
C
Maximum at the mid point between outer and inner surfaces
D
Uniform throughout
4
GATE PI 2006
MCQ (Single Correct Answer)
+1
-0.3
Cold shut is a defect in casting due to
A
sand sliding from the cope surface
B
internal voids or surface depression due to excessive gas trapped
C
discontinuity resulting from hindered contraction
D
two streams of material that are too cold to fuse properly
EXAM MAP