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

The correct answer focuses on soda (sodium) soap grease, which is recognized for its heat-resisting properties. This type of grease is formulated from sodium soap, which allows it to maintain consistency and performance under elevated temperatures, making it particularly useful in applications where heat is a significant factor.

Soda soap greases have a high dropping point, meaning they can withstand higher temperatures before they begin to lose their lubricating properties or start to melt. This is particularly important in industrial settings or machinery where components may experience intense heat due to friction or external sources. The ability to resist heat without breaking down is crucial for ensuring the longevity and reliability of machinery.

Other types of grease, such as calcium soap grease and lithium soap grease, may have their own distinct advantages but do not offer the same level of heat resistance as sodium soap grease, making them less suitable in high-temperature environments. Petroleum-based greases, while versatile, often do not have the specialized formulation to handle extreme heat as effectively as soda soap grease.