Canadian Entry To Practice (CETP) Practice Test

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Prepare for the Canadian Entry To Practice Test. Study with various question formats, including flashcards and multiple-choice questions, complete with hints and explanations. Ensure you're ready for your test!

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What is the octane rating of propane, making it a good engine fuel?

The correct answer is: 104

Propane has a high octane rating of approximately 104, which contributes to its suitability as an engine fuel. The octane rating is a measure of a fuel's ability to resist engine knocking or pinging during combustion, meaning that fuels with higher octane ratings can withstand greater compression. This quality allows engines to operate at higher efficiencies and power outputs while reducing the risk of damaging premature combustion, which is critical for maintaining engine performance. In comparison to other fuels, propane's octane rating is advantageous as it allows for more powerful and efficient combustion in engines specifically tuned to utilize higher-octane fuels. This leads to smoother operation and greater fuel efficiency, making propane a preferred choice for various applications, including vehicles and other engines. Understanding the benefits of a high octane rating helps in recognizing why propane is an excellent fuel option in many scenarios.