Black broken lines on a pattern indicates Production Engineering Mcqs February 28, 2019 BILAL KHATTAK0 A.Surface to be left unmachined B.Surfaces to be machined C.Core prints D.Seats for loose core prints E.Fillets Related Mcqs: Green colour on a pattern indicates Yellow colour on a pattern indicates Chaplets are Pattern draft for internal surfaces is Radiation heats transfer between two surfaces can be reduced by The fatigue limit of a material A diamond point chisel is used for When small castings are to be produced in large numbers, the type of pattern generally used is Core prints are provided to If an old casting is to be used as a pattern, to account for various allowances.