Question

The final dimensions of the pattern are ______ the final dimensions of the casting required.

(a) Similar to

(b) Different from

(c) Equal to

(d) Approximate to

This question was addressed to me in my homework.

My question is based upon Patterns and its Functions in chapter Casting Processes of Foundry and Forging

Answer 1

Correct choice is (b) Different from

The explanation is: The Pattern is made given the allowances as required. Once the casting is prepared, the casting is machined to get the required dimensions. Usually, the dimensions of the pattern are more than the dimensions of the castings.