1
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
2
GATE PI 2005
MCQ (Single Correct Answer)
+1
-0.3
An expandable pattern is used in
A
slush casting
B
squeeze casting
C
centrifugal casting
D
investment casting
3
GATE PI 2004
MCQ (Single Correct Answer)
+1
-0.3
Wood flour is added to core sand to improve:
A
Collapsibility of core
B
Dry strength of core
C
Shear strength of core
D
Tolerance on casting
4
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is NOT a property of a sand mold?
A
Permeability
B
Collapsibility
C
Strength
D
Fluidity
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Class 12