What should you do to mitigate risk while pumping compressed gas?

To mitigate risk while pumping compressed gas, it is crucial to immediately turn off the engine after the delivery is completed. This is because running engines can create potential ignition sources due to heat or sparks, which poses a significant hazard in environments where flammable gases may be present. Turning off the engine helps reduce the likelihood of an explosion or fire, thereby enhancing safety for all personnel involved.

In contrast, keeping the engine running or turning it off only after the hoses are unhooked can create unnecessary risks, particularly when refueling or making connections. Checking the engine oil before starting is a good practice for maintenance, but it does not directly address the immediate safety concerns involved in handling potentially hazardous materials like compressed gas. Ensuring that the engine is off reduces the overall risk during and after gas delivery operations.