🔍 Key Concepts

• Behavior of oil purifiers/centrifuges when water is not fully separated from the fuel oil • Effect of bowl/interface level (position of internal parts like "P") on separation between the water layer and oil layer • How mechanical faults such as worn bearings or weak springs usually show up (noise, vibration, leakage) rather than just color change

💭 Think About

• When an oil sample looks milky white, what does that usually indicate about water content or emulsification in oil systems? • Looking at the illustration, which component(s) directly control the interface level between oil and water inside the bowl, and what happens if that level is set too high or too low? • Which options describe faults that would more likely cause vibration, mechanical damage, or incorrect opening pressures, instead of simply changing the appearance of the discharged oil?

✅ Before You Answer

• Verify which labeled part "P" represents in this purifier bowl and how changing its position affects the oil/water interface • Consider whether worn bearings in "C" or a weak spring below "V" would primarily change the separation quality, or if they would more likely create mechanical symptoms • Relate the term "normal operation" to what a properly separated oil sample should look like (clear vs. cloudy/milky) before choosing your answer