Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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Prepare for the Oilers/Plant Tenders (HHC) Civil Service Exam. Practice with flashcards and multiple-choice questions. Each question includes helpful hints and explanations. Gear up to ace your exam!

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What could happen if a little oil is present in the high-pressure cylinder of a multi-stage air compressor?

It will enhance performance
It may cause excessive wear
It may be dangerous
It will improve lubrication

The correct answer is: It may be dangerous

If a small amount of oil is present in the high-pressure cylinder of a multi-stage air compressor, it could indeed be dangerous. Most air compressors, especially those used in high-pressure applications, are designed to operate with minimal contaminants. The introduction of oil can disrupt the precision components and the overall operation of the compressor. When oil mixes with compressed air, it can lead to a few potential problems. It can act as a combustive element, especially if the environment is hot and the compression ratios are high. This could result in an increase in operating temperatures, leading to potential overheating or even fires. Additionally, if the compressor's systems are not designed to handle lubrication from oil, it could compromise the structural integrity of the seals and gaskets, leading to leaks and other mechanical failures. Understanding this context is crucial, as it highlights the importance of maintaining the cleanliness of the air being compressed to avoid combustion hazards and ensure optimal performance of the compressor.