Oilers/Plant Tenders (HHC) Civil Service Practice Exam

When oiling an air compressor cylinder, what is the best practice regarding the amount of oil used?

1. A large amount to ensure saturation

2. A thin oil film to cover the walls

3. A moderate amount for protection

4. To use as little as possible

The correct answer is: A thin oil film to cover the walls

The best practice regarding oiling an air compressor cylinder involves creating a thin oil film to cover the walls. This thin film of oil is essential because it provides adequate lubrication without causing excessive buildup or compromising the functioning of the compressor. A thin oil film ensures that the moving parts can operate smoothly, reducing friction, minimizing wear and tear, and extending the life of the compressor. Using too much oil, as suggested in the first option, could lead to oil pooling or saturation, which may not effectively lubricate functioning components and could potentially damage the compressor. The third option, which suggests a moderate amount of oil for protection, does not emphasize the importance of the oil film's thinness and may lead to over-lubrication. The last option proposes using as little oil as possible, which would not provide sufficient lubrication and could result in increased friction and wear on the cylinder walls. Therefore, maintaining a thin oil film is crucial for optimal performance and longevity of the air compressor.