Oilers/Plant Tenders (HHC) Civil Service Exam 2026 – 400 Free Practice Questions to Pass the Exam

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What is a common characteristic of grease compared to liquid lubricants?

Higher viscosity

Better adhesion

Grease is known for its ability to better adhere to surfaces compared to liquid lubricants. This characteristic is primarily due to its thickener content, which allows it to stay in place and effectively lubricate machinery components even in high-load or extreme-pressure conditions. The adherence quality is vital for applications where liquid lubricants may run off or evaporate, potentially leading to inadequate lubrication and increased wear on parts. This ability to maintain a consistent lubrication film at contact surfaces results in reduced friction and wear over time, which is particularly beneficial in various industrial and mechanical applications.

While it may be true that some liquid lubricants can also offer good adhesion, the nature of grease allows it to excel in environments where liquid lubricants might not perform as effectively, making it a preferred choice in many applications involving bearings, joints, and gears.

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Lower temperature tolerance

Less stability

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