AG Mechanics CDE Practice Exam

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Prepare effectively for the AG Mechanics CDE exam with our engaging quiz. Featuring multiple-choice questions and detailed explanations, you can increase your knowledge of agricultural mechanics and develop the skills necessary for success in the competition.

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Gum deposits which clog the carburetor and other fuel system parts are caused by:

  1. low oil levels

  2. overheating

  3. stale gasoline

  4. water in the fuel

The correct answer is: stale gasoline

Stale gasoline is the correct answer because when gasoline sits for an extended period of time, it begins to break down and lose its volatility. This can lead to the formation of gum deposits which can clog the carburetor and other fuel system parts. Low oil levels, overheating, and water in the fuel can all cause issues with the engine and its performance, but they are not directly related to the formation of gum deposits in the fuel system.

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