Canadian Entry To Practice (CETP) Practice Test

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Why is it crucial to know the specific gravity of propane vapor?

Determining the proper fill level of containers
It can be used to calculate the flammability of the propane
Evaluation of the potential location of gas accumulation in a leak
It can be used for calculating the pressure in the propane container

The correct answer is: Evaluation of the potential location of gas accumulation in a leak

Understanding the specific gravity of propane vapor is essential for evaluating the potential location of gas accumulation in the event of a leak because specific gravity provides insight into how propane vapor behaves in relation to air. Propane has a specific gravity of approximately 1.5, meaning it is about 1.5 times heavier than air. As a result, in the case of a leak, propane vapor tends to accumulate in low-lying areas or confined spaces rather than dispersing evenly into the atmosphere. This information is critical for safety measures, allowing individuals to predict where hazardous concentrations of gas may form, thereby facilitating effective response strategies to prevent accidents or disasters. Ensuring that safety protocols consider the buoyancy and dispersion characteristics of propane vapor can significantly enhance safety in environments where propane is used or stored.