 
			 
			MCQOPTIONS
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				| 1. | The method of detecting dislocations by forming a visible precipitate along the dislocation lines is known as ____________ the small amount of impurity is intensely added to form the precipitate after heat treatment. | 
| A. | decoration | 
| B. | etching | 
| C. | trimming | 
| D. | dressing | 
| Answer» B. etching | |