Recreational Vehicle (RV) Technician Practice Test

What should be done after shutting off the service valve on a propane container?

1. Leave it unattended

2. Test for leaks

3. Connect another tank

4. Nothing is necessary

The correct answer is: Test for leaks

After shutting off the service valve on a propane container, the correct procedure is to test for leaks. This step is crucial to ensure safety because even after the service valve is closed, there may still be residual pressure in the lines or connections that can cause leaks. By testing for leaks, typically using a solution of soapy water that will bubble in the presence of gas, you can verify that there are no escaping gases, which can lead to hazardous situations like explosions or fires. Testing for leaks is a fundamental safety practice in handling propane tanks. It ensures that any potential risks are identified and mitigated before further use or connection of equipment. This practice aligns with regulatory and safety standards for working with propane and helps protect not only the technician but also anyone who might be in proximity to the propane system.