Answer :
Final answer:
Both fluorescent dye under UV light and white spray powder can be effectively used to detect oil leaks.
Explanation:
Tech A and Tech B are both correct in their techniques for identifying oil leaks. Tech A's method involves the use of a fluorescent dye such as fluorescein, which is depicted in Figure 30.32. The oil is then illuminated under UV light, causing it to glow and making the oil leaks visibly detectable, as seen in Figure 30.33. This process is facilitated by the phenomenon of fluorescence, which involves the emission of light by a substance that has absorbed light or other electromagnetic radiation, particularly from sources such as 'black lights'.
Tech B’s approach employs a white spray powder to detect oil leaks. When sprayed over suspected areas, the white powder will stick to the oil, effectively marking the areas of leakage. This technique, although without need for UV light, still serves as an effective method for leak detection.
It's essential that oil leaks are detected and fixed promptly as leaked oil on the road surface can be dangerous. For instance, if rain falls, the oil can create a slippery surface reducing the control of the vehicle potentially leading to accidents.
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