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Destructive testing method can also be economical for large casting or structure.

Destructive testing method can also be economical for large casting or structure. Correct Answer False

Destructive testing method can be applicable to the large structures but it is not economical because destruction of large casting or structure will cause steep downing of productivity. So for large structures or castings, other methods are used for the inspection like modeling by finite element software.

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Impact test for detection of defects in the casting is the most crude and unreliable method of non-destructive testing.
The casting processes that require expendable moulds are
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Q. Low pressure casting
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