Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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What is the primary function of filters in the lubricating system of a vertical steam engine?

To improve oil viscosity
To lubricate moving parts
To remove solid particles from the oil
To measure oil flow

The correct answer is: To remove solid particles from the oil

The primary function of filters in the lubricating system of a vertical steam engine is to remove solid particles from the oil. Over time, lubricating oil can accumulate contaminants such as dirt, metal particles, and other debris that can cause wear and damage to engine components. By filtering out these solid particles, the filter helps to maintain the cleanliness of the oil, ensuring that it can effectively lubricate the moving parts without causing excessive wear. Maintaining clean oil is crucial for the longevity and efficiency of the engine. With clean oil, the engine operates more smoothly, produces less friction, and experiences reduced wear, which can significantly extend the life of engine components. This process is essential for optimal engine performance and reliability. In the context of the other choices, improving oil viscosity pertains more to the properties of the oil itself rather than the function of filters. While lubricating moving parts is an important role of oil, the filter’s specific job is to ensure that the oil remains free of contaminants. Measuring oil flow may be a critical aspect of monitoring engine function, but it does not relate to the direct purpose of the filter in the lubricating system.