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Q. |
A pattern carries which allowance for internal and external surfaces? |
A. | shrinkage allowance |
B. | machining allowance |
C. | distortion allowance |
D. | draft allowance |
Answer» D. draft allowance | |
Explanation: draft allowance is also known by the name of tapering allowance, as the diameter of the cast goes on increasing in a trapezoidal shape from the bottom. a pattern has a draft allowance of an order of 1 and 3 degrees for external and internal surfaces respectively. |
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