In a rich mixture some fuel is left over. What is left over?

Rome through the General Aircraft Technical Knowledge Exam. Dive deep into the core concepts of aircraft operation. Tackle multiple-choice questions and detailed explanations to ensure you soar to success. Prepare meticulously and conquer your test!

Multiple Choice

In a rich mixture some fuel is left over. What is left over?

Explanation:
When a mixture is rich, there is more fuel than the available air (oxygen) can burn. The excess fuel has nothing to react with, so it remains unburned in the mixture. Therefore, what’s left over is fuel. (Some unburned fuel can appear in the exhaust as hydrocarbon emissions, but the leftover within the mixture itself is fuel.)

When a mixture is rich, there is more fuel than the available air (oxygen) can burn. The excess fuel has nothing to react with, so it remains unburned in the mixture. Therefore, what’s left over is fuel. (Some unburned fuel can appear in the exhaust as hydrocarbon emissions, but the leftover within the mixture itself is fuel.)

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy