Recreational Vehicle (RV) Technician Practice Test

When purging a 20# propane cylinder, what is the minimum distance to an ignition source?

1. 10 feet

2. 15 feet

3. 20 feet

4. 25 feet

The correct answer is: 25 feet

The correct answer is 25 feet because purging a propane cylinder releases flammable gas, creating potential hazards if ignition sources are nearby. Maintaining a minimum distance of 25 feet from any ignition sources, such as flames, sparks, or electrical apparatus, is a vital safety measure to prevent possible fires or explosions during the purging process. This distance helps ensure that any accidental release of propane does not reach an ignition source, thereby reducing the risk of fire. While shorter distances might be sufficient in some contexts, safety standards and regulations for handling flammable gases, like propane, often emphasize the importance of greater distances in order to enhance safety protocols. In this case, 25 feet is established as a standard to protect those involved in the purging process and to mitigate the hazards associated with propane leakage.