Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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What is a characteristic of the splash lubrication system?

It is controlled via a pump
It relies on crank motion for oil distribution
It allows for added coolant integration
It requires high pressurization

The correct answer is: It relies on crank motion for oil distribution

The characteristic that defines a splash lubrication system is its reliance on crank motion for oil distribution. In this system, oil is stored in a sump, and as the crankshaft rotates, it splashes oil onto various moving parts of the engine. This method effectively lubricates critical components without the need for a separate pump to circulate the oil under pressure. The simple design and effective lubrication provided by the crankshaft's motion make splash lubrication a common choice in smaller engines and machinery. Other options describe different lubrication methods or features. For example, a pump-controlled system typically involves a pressurized lubrication method, which is not the case in splash lubrication. Additionally, while coolant integration can be important in some systems, it is not a defining characteristic of splash lubrication specifically. Lastly, high pressurization is more characteristic of systems that utilize full-pressure oil pumps rather than splash lubrication, which does not require high pressure to function effectively.