Final answer:
Immediately evacuate the area if you notice a strange smell when working on old gas lines. Report the gas leak to the authorities or the gas company. Ensure proper ventilation and follow safety procedures to avoid danger.
Step-by-step explanation:
If you're working on some old gas lines and notice a strange smell, the first thing you should do is evacuate the area immediately to ensure safety. Gas leaks can be very dangerous, leading to explosions or suffocation. It is crucial to not operate any electrical switches or create any sparks, as these can trigger an explosion. Next, you should report the gas leak to the appropriate authorities or the gas company right away so that they can take the necessary steps to fix the issue.
For safety, always ensure areas where gas is present are well-ventilated. Remember to waft any suspect odor towards you rather than smelling it directly to avoid inhaling harmful fumes. Lastly, follow any additional safety procedures that are recommended for dealing with gas leaks, such as avoiding the use of cell phones near the leak, extinguishing any open flames, and avoiding any actions that may start a fire.