1
GATE ME 1991
MCQ (Single Correct Answer)
+1
-0.3
When there is no room temp change, the total shrinkage allowance on a pattern is INDEPENDENT OF
A
Pouring temp of the liquid metal
B
Freezing temp of the liquid metal
C
The component size
D
Coefficient of thermal contraction of solidified metal
2
GATE ME 1991
MCQ (Single Correct Answer)
+1
-0.3
Converging passage is used for feeding the liquid molten metal into the mould to
A
Increase the rate of feeding
B
Quickly break off the protruding portion of the casting
C
Decrease wastage of cast metal
D
Avoid aspiration of air
3
GATE ME 1990
MCQ (Single Correct Answer)
+1
-0.3
The pressure at the in-gate will be maximum with the gating system
A
$$4:8:3$$
B
$$1:3:3$$
C
$$1:2:4$$
D
$$1:2:1$$
4
GATE ME 1989
MCQ (Single Correct Answer)
+1
-0.3
Chills are used in molds to
A
achieve directional solidification
B
reduce possibility of blow holes
C
reduce the freezing time
D
smoothen the metal for reducing spatter.
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Turbo Machinery
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