| A | B |
| Red | Color used on Acetylene hoses |
| Green | Color used on Oxygen Hoses and bottles |
| left handed | Threads use on Acetylene hoses |
| right handed | Threads used on Oxygen hoses |
| Number 5 | Darkness of shade used for OxyAcetylene |
| 30-40 | PSI setting for Oxygen when cutting |
| 3-5 | PSI acetylene when cutting |
| Neutral | Type of flame desired when cutting or welding |
| 1/4 turn | The amount the Acetylene bottle should be opened this much |
| Completely | The amount that the oxygen bottle should be opened |
| Soap Test | Used in detecting leaks |
| Bleed | What should be done to the lines at the end of the class |
| Wire ring | should be placed on the top of the gas cylinder when empty. |
| chained | what should be done to secure bottles for safety |
| line pressure | the gauge to the far left of the bottle valve |
| bottle pressure | the gauge right next to the bottle valve |