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				| 1. | What are the values of tapers produced in Electrochemical jet drilling process?$ | 
| A. | 1 to 2 included angles | 
| B. | 5 to 10 included angles | 
| C. | 10 to 15 included angles | 
| D. | 20 to 30 included angles | 
| Answer» C. 10 to 15 included angles | |