 
			 
			MCQOPTIONS
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				| 1. | To machine high quality parts using CHM, which of the following need not be necessary? | 
| A. | Heat treatment of work piece | 
| B. | Grain size of work piece | 
| C. | Frequency of vibrations | 
| D. | Range of work pieces | 
| Answer» D. Range of work pieces | |