 
			 
			MCQOPTIONS
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				| 1. | Which_of_the_following_is_a_metallurgical_defect? | 
| A. | Hotspots | 
| B. | Shrinkage cavities | 
| C. | Slag inclusions | 
| D. | Metal penetration | 
| Answer» B. Shrinkage cavities | |