Disk-type filters use a series of spacers and screens. What directs oil through the screens?

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Prepare for the Aircrewman Mechanical Test 3 with focused study materials. Utilize flashcards and multiple-choice questions, complete with detailed explanations to ace your exam.

Multiple Choice

Disk-type filters use a series of spacers and screens. What directs oil through the screens?

Explanation:
Disk-type filters rely on a stack of screens separated by spacers to create the flow paths. The spacers hold the screens apart and shape the channels so oil must pass through the screen mesh as it moves from one disk to the next. This forced path through the screens is what achieves filtration, while the housings simply contain the stack and don’t direct flow. Beads aren’t used in this arrangement.

Disk-type filters rely on a stack of screens separated by spacers to create the flow paths. The spacers hold the screens apart and shape the channels so oil must pass through the screen mesh as it moves from one disk to the next. This forced path through the screens is what achieves filtration, while the housings simply contain the stack and don’t direct flow. Beads aren’t used in this arrangement.

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