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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Oil viscosity is a measure of:

  1. the ability to start in cold temperatures

  2. the rate of oxidation

  3. the resistance to flow

  4. the temperature rating

The correct answer is: the resistance to flow

Oil viscosity is a measure of the resistance to flow. Viscosity is a crucial property of oil as it determines how well the oil will flow and lubricate different components in machinery and engines. A higher viscosity means the oil is thicker and flows more slowly, while a lower viscosity indicates the oil is thinner and flows more freely. The ability to start in cold temperatures (Choice A), the rate of oxidation (Choice B), and the temperature rating (Choice D) are all important aspects of oil performance, but they do not directly relate to viscosity.

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