AG Mechanics CDE Practice Exam

Paper air filter cartridges should be cleaned by:

1. Blowing with air

2. Hosing down

3. Scraping

4. Tapping lightly on a hard surface

The correct answer is: Blowing with air

Paper air filter cartridges should be cleaned by blowing with air because it is a gentle method that helps to remove excess dirt and debris without damaging the filter itself. Blowing with air allows for a quick and effective way to clear out any built-up particles from the filter, ensuring that the engine receives clean and sufficient air flow for optimal performance. Hosing down, scraping, or tapping lightly on a hard surface can potentially tear or damage the paper filter, reducing its effectiveness and leading to potential engine issues.