AG Mechanics CDE Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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.

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

The exhaust valve is made of:

  1. a composite alloy

  2. a durable ceramic

  3. a very special steel

  4. common aluminum

The correct answer is: a composite alloy

The exhaust valve in an engine is typically made of a composite alloy to withstand the high temperatures and pressures generated during the combustion process. Composite alloys are known for their heat resistance and strength, making them an ideal material for the exhaust valve's demanding operating conditions. Options B, C, and D are incorrect because a durable ceramic, special steel, and common aluminum would not be able to withstand the extreme heat and stress experienced by the exhaust valve as effectively as a composite alloy.

More Questions Like This