A designer would attempt to avoid bosses and pads in the casting because

Foundry Technology Mcqs
BILAL KHATTAK0

A.it is difficult to incorporate in pattern
B.mould formation is difficult in pressence of boss
C.projections such as bosses and pads can not merge with thinner sections
D.they being thicker will take longer to solidify and hence will suffer from residual stresses and coarse grains

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  10. If an old casting is to be used as a pattern, to account for various allowances.

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