Gas Heat ESCO Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the difference between natural gas and propane?

Natural gas is denser and requires less volume for combustion

Natural gas is lighter than air and needs a larger volume for combustion

Natural gas is primarily composed of methane, which is lighter than air. This characteristic means that when natural gas is released into the atmosphere, it tends to rise rather than spread out along the ground, making it a safe option in the event of a leak. Additionally, natural gas has a lower energy content by volume compared to propane, which means that more volume of natural gas is needed to produce the same amount of heat as propane. This is why option B accurately describes the relationship between natural gas and propane in terms of their combustion properties and how they behave in the environment.

Understanding the physical properties of these gases is crucial for correctly handling and using them in applications such as heating, cooking, and other energy-related functions. This knowledge is essential for professionals in the gas heat industry to ensure safety and efficiency in their work.

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Propane is primarily used for residential heating whereas natural gas is not

Natural gas is a solid, while propane is a liquid

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