Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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What type of lubrication is typically avoided in condensate areas?

Grease
Liquid nitrogen
Light oils
High-viscosity oil

The correct answer is: Grease

The reason grease is typically avoided in condensate areas is due to its potential to attract and hold moisture. In such environments, the presence of condensate can create conditions where water accumulates, leading to issues like corrosion or the formation of sludge. Grease, being a thick substance, can retain water and impede the proper function of machinery by trapping contaminants. In contrast, light oils, high-viscosity oils, and liquid nitrogen are more appropriate for these areas since they don’t have the same moisture-retentive properties as grease. Liquid nitrogen, for instance, is used in some cooling applications and doesn’t contribute to moisture problems, while oils provide lubrication without the risk of creating a moist environment that can lead to equipment failure. Therefore, avoiding grease helps ensure the reliability and longevity of equipment operating in condensate areas.