Alberta Boilers Safety Association (ABSA) Practice Test

Why should gas cylinders be stored upright?

1. Minimize space requirements

2. Avoid liquified product from escaping

3. Keep them from rolling during transportation

4. Enhance proper identification

The correct answer is: Avoid liquified product from escaping

Storing gas cylinders upright is crucial primarily to prevent liquefied gas from escaping. Many gases, particularly those that are liquefied under pressure, can exist in both liquid and gas forms. When cylinders are stored upright, the valve located at the top allows gas to be released in a controlled manner. If cylinders are stored on their sides, there is a risk that liquid gas could escape through the valve, leading to potential hazards such as fire or asphyxiation, depending on the nature of the gas. While there are valid reasons related to space management, transportation stability, and identification associated with upright storage, the primary safety concern revolves around preventing the unintended release of liquefied product. This not only protects individuals handling the cylinders but also maintains a safer environment by mitigating the risk of gas leaks.