1
GATE PI 1990
MCQ (Single Correct Answer)
+1
-0.3
For casting of turbine blades made of high temp and high strength alloys, the most suitable process is
A
Die casting
B
Investment casting
C
Centrifugal casting
D
Slush casting
2
GATE PI 1990
Fill in the Blanks
+1
-0
The problem of shrinkage cavity is more likely to occur while casting ......... A ............ B.......... a chill block

(A.) metal / plastic , (B.) with / without.

3
GATE PI 1990
MCQ (Single Correct Answer)
+2
-0.6
When there is no room temp change, the total shrinkage allowance on a pattern is INDEPENDENCE OF
A
pouring temperature of the liquid metal
B
freezing temperature of the liquid metal
C
the component size
D
coefficient of thermal contraction of solidified metal
4
GATE PI 1990
Subjective
+6
-0
A steel plate $$40cm \times 30cm \times 0.3cm$$ is to be cast. The volume shrinkage of steel during solidification is $$3\% .$$ A cylindrical side riser with diameter $$4cm$$ and height $$4cm$$ is used. The riser volume should at least be $$3$$ times that the dictated by shrinkage consideration. Is the riser volume sufficient if not what is the riser size?
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12