Mechanical Engineering > GATE 2014 SET-3 > Manufacturing Technology
Match the casting defects (Group A) with the probable causes (Group B):
Group A
P: Hot tears
Q: Shrinkage
R: Blow holes
S: Cold Shut
Group B
1: Improper fusion of two streams of liquid metal
2: Low permeability of the sand mould
3: Volumetric contraction both in liquid and solid stage
4: Differential cooling rate
Group A
P: Hot tears
Q: Shrinkage
R: Blow holes
S: Cold Shut
Group B
1: Improper fusion of two streams of liquid metal
2: Low permeability of the sand mould
3: Volumetric contraction both in liquid and solid stage
4: Differential cooling rate
Correct : b
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