On the interior surfaces the draft allowance is usually
A)40 to 60 mm/metre
B)10 to 20 mm/metre
C)100 to 120 mm/metre
D)200 to 225 mm/metre

Name: On the interior surfaces the draft allowance is usually A)40 to 60 mm/metre B)10 to 20 mm/metre C)100 to 120 mm/metre D)200 to 225 mm/metre
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Question

Quizplus · Accepted Answer

Draft allowance is the amount of material that is added to the pattern to allow for the shrinkage of the casting during cooling. On the interior surfaces, the draft allowance is usually 10 to 20 mm/meter.

On the Interior Surfaces the Draft Allowance Is Usually