Which type of lubricating oil method is LEAST likely to have a lube oil strainer or filter?

Correct Answer: Option C — Static-feed

Static-feed systems, such as oil rings or wick-feed lubricators, are typically simple, low-speed applications that do not utilize a circulating pump. Because there is no continuous flow through a piping circuit, these systems lack the integrated filtration or straining components found in pressurized or gravity-fed circulating lubrication systems.