A cylinder must be completely depressurized before attempting to remove a valve.
True False
With the valve open, and after squirting air into a cylinder, if you initially hear air flowing back out, and then it stops flowing, you know the cylinder is depressurized.
If you are absolutely SURE that there is no compressed air remaining in a cylinder, then you may remove a valve without testing the cylinder for pressure.
Seasoned veterans have been killed while attempting to control the removal of a defective valve with pressure in the cylinder.
The first step in depressurizing a cylinder is to step aside, open the valve, _______ and feel. (Fill in the correct answer in the text field below.)
You can determine if a valve is working correctly by checking to see if it holds and _________ pressure. (Fill in the correct answer in the text field below)
With the valve open and after inserting air with the air gun, listen and _________ .(Fill in correct answer in the text field below.)
Galiso further recommends a small diameter coilded air line because it is safer to use.
If you do not hear air escaping when you open a cylinder's valve, which of the following is true? (Select all correct answers below)
There is NO safe way to pull a valve out of a cylinder if there is pressure in the cylinder.
An air gun with rubber on the end is not recommended as a tool to confirm pressure in a cylinder.
There is a prescribed method to know for sure that a cylinder has no pressure in it before de-valving.
When you cannot (or no longer) hear air escaping, the most difficult tool for confirmation is an air gun.
If you are very careful, it is possible to safely remove a valve even though there is some pressure in the cylinder.
If a pressurized cylinder does not release air when the valve is opened, then you know that you have a faulty valve.