Oilers/Plant Tenders (HHC) Civil Service Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Oilers/Plant Tenders Exam with our comprehensive quiz. Utilize flashcards and multiple choice questions with hints and explanations to excel in your civil service test. Start your preparation now!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

True or False: The primary purpose of a lubricant is to prevent direct contact between two rubbing surfaces.

True
False
Depends on application
Not always true

The correct answer is: True

The statement regarding the primary purpose of a lubricant being to prevent direct contact between two rubbing surfaces is true. Lubricants create a film that separates surfaces, thereby minimizing friction and wear which could lead to damage or failure of mechanical components. By keeping the surfaces apart, lubricants help in reducing heat generation, preventing corrosion, and enhancing the overall efficiency and lifespan of machinery. While lubricants may serve additional roles depending on the application—such as cooling, cleaning, or sealing—the fundamental and most critical role remains that of minimizing direct contact between surfaces. This is essential for maintaining optimal operation and performance in a variety of mechanical systems.