Draft is generally provided to make a clearance between the pattern and the mould during pattern extraction.(a) True(b) FalseThis question was posed to me during a job interview.This interesting question is from Pattern Fillets topic in section Pattern and Pattern Making of Casting-Forming-Welding I

Draft is generally provided to make a clearance between the pattern an

1.	Draft is generally provided to make a clearance between the pattern and the mould during pattern extraction.(a) True(b) FalseThis question was posed to me during a job interview.This interesting question is from Pattern Fillets topic in section Pattern and Pattern Making of Casting-Forming-Welding I
Answer» The correct option is (a) True The best EXPLANATION: DRAFT angles are NORMALLY included into the pattern design to make easy extraction of a pattern from the mould cavity. Draft angles are used in most of the pro¬cesses in which a pattern is WITHDRAWN from the mould prior to pouring. Draft is very necessary to provide a clearance between the pattern and the mould during pattern extraction.

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