Warning signs are common in places in which there could be a personal injury risk. They can be found in industrial areas or where there are machines and vehicles. In these places, there are frequent sources of risks like the following: • toxic and ammable materials • doors opening constantly • moving parts • welding ashes • boiling water
• obstacles on the oor • objects that could fall
Remember that ignoring a warning sign might not cause death, but other injuries are probable.
welding: n. the activity of joining metal pieces by melting their edges when they are hot
Unit 7
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