 
			 
			MCQOPTIONS
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				| 1. | To avoid difficulties in making of molds, sand should be cooled below what temperature? | 
| A. | 100°F | 
| B. | 120°F | 
| C. | 140°F | 
| D. | 160°F | 
| Answer» B. 120¬¨¬®‚Äö√†√ªF | |