Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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Where does the dirty oil enter the purifier bowl in an operating DeLaval Purifier?

From the bottom of the machine
From the side of the machine
From the back of the machine
From the top of the machine

The correct answer is: From the top of the machine

In a DeLaval Purifier, the dirty oil enters the purifier bowl from the top of the machine. This design is crucial for the separation process, as the impurities and heavier particles can then be effectively managed due to the centrifugal force generated by the bowl's high-speed rotation. When dirty oil is introduced from the top, it helps maintain a consistent flow and allows for effective separation of oil and contaminants within the bowl, ensuring that the cleaner oil can exit from the bottom while impurities accumulate at the sides or bowl walls. This efficient mechanism is fundamental for achieving optimal purity levels in processed oil, which is essential for the operation of equipment using the oil.