Oilers/Plant Tenders (HHC) Civil Service Practice Exam

How is lubrication generally supplied for modern reciprocating air compressors?

1. By a Gravity Oiler

2. By a Mechanical Force-Feed Oiler

3. By a Manual Lubricator

4. By an Automatic Spray System

The correct answer is: By a Mechanical Force-Feed Oiler

Modern reciprocating air compressors typically utilize a mechanical force-feed oiler for lubrication. This system ensures that oil is delivered directly and efficiently to the moving parts of the compressor, maintaining optimal lubrication throughout the operational cycle. Mechanical force-feed oilers are designed to maintain a consistent oil supply through a pump that feeds oil under pressure. This method is crucial for reciprocating air compressors as it provides a steady flow of lubricant, reducing wear and tear on components that experience significant friction and heat during operation. The reliability of this lubrication system is essential for maintaining performance and extending the lifespan of the compressor, as it prevents excessive wear and potential failure that can occur if lubricants are not provided at the correct intervals or quantities. Using an automatic system like this enhances operational efficiency, ensuring that maintenance needs are minimal and that the compressor operates smoothly. In contrast, other methods, while still used in various applications, may not provide the same level of reliability or efficiency. For instance, gravity oilers rely on the force of gravity to supply oil, which may not be sufficient in all situations. Manual lubricators require regular monitoring and manual intervention, which can lead to inconsistent lubrication if not managed properly. Automatic spray systems, while effective in some contexts, may not deliver sufficient oil directly