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What Should You Do If a Backfire Occurs? A Close the Oxygen Valve A at the Gas Cylinder. B on the Blowpipe and Close the Fuel Gas Valve

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What should you do if a backfire occurs? A Close the oxygen valve A at the gas cylinder. B on the blowpipe and Close the fuel gas valve B then immediately shut off the oxygen gas at the blowpipe valve. C on the blowpipe and Close the oxygen valve c then immediately shut off the fuel gas at the Close the fue I gas valve

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José maestro · Tutor durante 5 años
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If a backfire occurs, you should:1. Close the fuel gas valve on the blowpipe.2. Immediately shut off the oxygen gas at the blowpipe valve.So, the correct answer is:B. Close the fuel gas valve on the blowpipe and then immediately shut off the oxygen gas at the blowpipe valve.