Q164
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
A.
10 mm/m
B.
16 mm/m
C.
20 mm/m
D.
26 mm/m
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be 26 mm/m