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| Q. |
Defects caused by the chilling of the casting are known as? |
| A. | hot spots |
| B. | hot tears |
| C. | shrinkage cavity |
| D. | swell |
| Answer» A. hot spots | |
| Explanation: hot spots are the thick sections, those cool slower than other sections causing abnormal shrinkage. defects such as voids cracks and porosity are created at these hot spots. | |
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