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				| 1. | WHICH_OF_THE_FOLLOWING_TYPES_OF_LIGHT_IS_PREFERRED_FOR_USING_FLUORESCENT_PENETRANT_IN_LIQUID_PENETRANT_TESTING_(LPT)_METHOD??$ | 
| A. | Normal light | 
| B. | Monochromatic light | 
| C. | Ultraviolet light | 
| D. | Red light | 
| Answer» D. Red light | |