What safety measure should be taken when handling the acetylene cylinder?

When handling an acetylene cylinder, it is essential to open it cautiously and only partially. This practice helps to manage the potential risks associated with acetylene, which is a highly flammable gas. Opening the valve fully can increase the risk of a rapid release of gas, which could lead to an uncontrolled combustion or an explosion under certain conditions. By only opening the cylinder partially, the flow of gas is controlled, allowing for safer use in welding or brazing applications.

Additionally, it’s important to follow this protocol to minimize the risk of an accidental leak or a surge of gas that could ignite. Proper cylinder handling is critical in maintaining a safe working environment, especially when dealing with flammable materials like acetylene.