Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Prep Guide

In a splash lubrication system, mechanical splashing is the primary mechanism used to distribute lubricant throughout the engine or machinery. This method utilizes the motion of moving parts, typically the crankshaft or connecting rods, which are partially submerged in oil. As these components move, they scoop up oil and fling it against various internal surfaces, ensuring that the necessary lubrication is provided where needed.

This approach is particularly effective for simpler designs and systems where the lubrication requirements are less demanding. Splash lubrication relies on the physical movement of the components rather than external pumps or complex delivery systems, which makes it a viable option for certain applications, such as in small engines or older machinery. The other options involve more complex lubrication systems; for instance, a forced oil pump relies on mechanical or electrical means to circulate oil, while air pressure and vacuum suction do not directly contribute to lubrication in the same way that a splash mechanism does.