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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the upper flammability limit of propane in air?

8.0%
9.0%
9.6%
10.5%

The correct answer is: 9.6%

The upper flammability limit of propane in air is a critical safety parameter since it indicates the maximum concentration of propane in the air that can ignite if there is an ignition source present. In this case, the correct choice of 9.6% represents the concentration of propane above which the mixture can become too rich to burn. At this concentration, the proportion of propane is sufficient to prevent combustion due to an excess of propane compared to oxygen, making it non-flammable. This knowledge is essential for safe handling and usage of propane in various applications, such as heating and cooking. Understanding the upper flammability limit also assists in properly ventilating areas where propane is used.