Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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True or False: The carbonizing of oil under high temperature improves its lubricating qualities.

  1. True

  2. False

  3. Only for certain oils

  4. It has mixed results

The correct answer is: False

The statement is false because carbonizing oil under high temperatures generally degrades its lubricating qualities rather than enhances them. When oil is subjected to excessive heat, it often undergoes chemical changes that can lead to the formation of carbon deposits and other byproducts that can interfere with the oil's ability to provide effective lubrication. High temperatures can cause oxidation and thermal breakdown of the oil, reducing its viscosity and increasing the likelihood of sludge formation. As a result, the lubricating properties become compromised, making the oil less effective in reducing friction and wear in mechanical systems. In contrast, while some specific refining or treatment processes under controlled conditions can enhance certain aspects of some oils, the general consensus is that excessive carbonization negatively impacts lubricating performance.