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Which of the following statements is not true concerning the oxyacetylene rig?

  1. Always wear protective gear

  2. Check gas leaks with soapy water

  3. Do not stand in front of the gauges when opening the cylinders

  4. Stand in front of the gauges when opening the cylinders so you can see the amount of pressure

The correct answer is: Stand in front of the gauges when opening the cylinders so you can see the amount of pressure

In oxyacetylene welding, safety is of utmost importance. The statement "Stand in front of the gauges when opening the cylinders so you can see the amount of pressure" is not true. It is crucial not to stand in front of the gauges when opening the cylinders as a safety precaution. The gauges can release pressure and debris upon opening, and standing in front of them can lead to injury. Therefore, it is essential to stand to the side when opening the cylinders to ensure safety.