AG Mechanics CDE Practice Exam 2025 – Comprehensive Test Prep Resource

Image Description

Question: 1 / 400

The exhaust valve is made of:

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.

Get further explanation with Examzify DeepDiveBeta

a durable ceramic

a very special steel

common aluminum

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy