Gray cast iron blocks of size 100 mm 50 mm 10 mm with a central spherical cavity of diameter 4 mm are sand cast. The shrinkage allowance for the pattern is 3%. The ratio of the volume of the pattern to volume of the casting is

Gray cast iron blocks of size 100 mm 50 mm 10 mm with a central sp

1.	Gray cast iron blocks of size 100 mm 50 mm 10 mm with a central spherical cavity of diameter 4 mm are sand cast. The shrinkage allowance for the pattern is 3%. The ratio of the volume of the pattern to volume of the casting is
A.	0.913
B.	1
C.	0.951
D.	0.915
Answer» B. 1

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Gray cast iron blocks of size 100 mm 50 mm 10 mm with a central spherical cavity of diameter 4 mm are sand cast. The shrinkage allowance for the pattern is 3%. The ratio of the volume of the pattern to volume of the casting is

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