Question 41General Subjects - QMED

The correct answer is B) Lithium-based grease. Lithium-based grease is the most commonly used grease aboard ships due to its favorable properties for marine applications. Lithium grease has good water resistance, high-temperature stability, and excellent adhesion, making it well-suited for the harsh marine environment. It is also more cost-effective and readily available compared to other specialized greases. The other options are less commonly used aboard ships. Lime-based grease is not as water-resistant, calcium-based grease has lower temperature stability, and aluminum-based grease is less common and generally more expensive for marine use.