Cylinder and cylinder heads for air cooled IC engines are casted

cylinder-and-cylinder-heads-for-air-cooled-ic-engines-are-casted

Cylinder and cylinder heads for air cooled IC engines are casted using which technique?

A. Precision investment casting

B. Shell moulding

C. Permanent mould casting

D. Die casting

The question was asked during a job interview.

I want to ask this question from Special Casting Techniques topic in section Special Casting Techniques of Casting-Forming-Welding I

The correct choice is B. Shell moulding

The best I can explain: Cylinders, cylinder head, automation parts, cast tooth etc are casted using shell moulding.