Canadian Entry To Practice (CETP) Practice Test

Butane is not commonly used as a fuel gas in residential applications primarily because its ability to vaporize diminishes at temperatures below 32 degrees Fahrenheit (0 degrees Celsius). In residential heating and cooking applications, it is crucial for the fuel to remain in a vaporized state to ensure efficient combustion and proper functioning of appliances. Butane requires a specific temperature to transition from a liquid to a gas, and when the temperature drops below freezing, it cannot vaporize sufficiently to be used effectively. In contrast, fuels such as propane have a lower vaporization point, making them more suitable for colder climates. Understanding the properties of fuels, including boiling and vaporization points, is crucial for selecting appropriate fuel sources based on environmental conditions.