AG Mechanics CDE Practice Exam

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Prepare for the AG Mechanics CDE Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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Single element ________ filters should be oiled to help catch dust particles better.

  1. Foam

  2. Metal

  3. Paper

  4. Plastic

The correct answer is: Foam

Foam filters should be oiled to help catch dust particles better because foam has a porous structure that allows air to pass through while trapping small particles. However, oiling paper, metal, or plastic filters can block the pores and inhibit air flow, making them less effective at filtering dust. This is why foam filters are the only ones that should be oiled.

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