To clean a cylinder valve outlet of foreign material, what should you do?

Name: To clean a cylinder valve outlet of foreign material, what should you do?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Quickly opening and then closing the valve is a common method to clear foreign material from a cylinder valve outlet. This action uses the pressure of the gas inside the cylinder to blow out any debris. Other methods like using oil, blowing into the valve, or using an alcohol swab could introduce contaminants or be unsafe.

To Clean a Cylinder Valve Outlet of Foreign Material, What