FAA Powerplant Written Practice Test

What is the intended purpose of light corrosion preventative compounds?

1. To provide long-term storage protection

2. To preserve an engine for less than 30 days and to spray cylinders

3. To eliminate all moisture from engine components

4. To enhance engine performance during operation

The correct answer is: To preserve an engine for less than 30 days and to spray cylinders

The intended purpose of light corrosion preventative compounds is to preserve engine components in conditions where short-term protection is necessary. These compounds are specifically designed to be used for periods typically less than 30 days, making them ideal for preserving sensitive areas like engine cylinders during brief intervals of inactivity. By creating a thin protective film, these compounds help prevent rust and corrosion without replacing regular maintenance practices. This is particularly important since moisture and various environmental factors can lead to degradation of engine parts. Hence, light corrosion preventative compounds serve a critical role during short-term storage or while servicing engines, ensuring they remain in good condition without the need for more intensive protective measures.