Q.

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

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