1
GATE PI 1992
MCQ (Single Correct Answer)
+1
-0.3
Chaplets are placed between mold in order to
A
promote directional solidification
B
help alloying the metal
C
facilitate easy removal of core from casting
D
prevent core movement due to buoyancy
2
GATE PI 1992
Fill in the Blanks
+1
-0
Investment casting uses ......... (wax / resin coated sand) as pattern material and is preferred for small parts with ................. (simple/intricate) designs
3
GATE PI 1991
MCQ (Single Correct Answer)
+1
-0.3
The optimum pouring time for a casting depends on several factors. One important factor among them is
A
location of riser
B
porosity of sand mold
C
fluidity of casting metal
D
area of the pouring basin
4
GATE PI 1991
MCQ (Single Correct Answer)
+1
-0.3
Ceramic slurry is used in making the molds for
A
investment casting
B
die casting
C
shell mold casting
D
centrifugal casting
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