When I turn off a gas ring on my cooker the flame reduces as you might expect, but then it sometimes extinguishes with a small explosive popping sound. Why does it do that?rnWhen gas is mixed with air it can burn smoothly or it can explode. The gas is fed to the gas ring by a small venturi mechanism, which uses incoming gas to draw in air for combustion. This is adjusted to give a blue cone-shaped flame which indicates complete combustion.
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