Chapter 6 - Oxygen Precautions and Preparing Nitrox
Oxygen Precautions and Preparing Nitrox
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CHAPTER 6: OXYGEN PRECAUTIONS AND PREPARING NITROX - KNOWLEDGE REVIEW
1. In order for a fire to occur or continue, three things must be present:
____________________,
____________________, and
____________________.
2. All equipment to be used with pure oxygen must be “_____________,” and “_________________”
parts must be used in order to minimize the risk of fire or destruction by the oxygen.
3. Oxygen compatible means that the materials used in the various parts in the system are not
_____________________________________________________ in the presence of
________________________________________.
4. The general rule of thumb is that any equipment that is to be used with pure oxygen or an oxygen level that is
above ______________ must be cleaned for oxygen service and have only oxygen-compatible parts.
5. After being cleaned for use with oxygen-enriched air, the cylinder will be ________________________
________________________________.
6. The common identification labeling for a nitrox cylinder is ________________________________
___________________________ with a printed identifier such as “Nitrox” or “Enriched Air Nitrox.”
7. Cylinders must be prepared for designated nitrox service because most of the time __________________
________________________________________.
8. In partial-pressure mixing, the blending technician first __________________________________
and then _________________________________________________________.
9. The continuous-flow method injects a measured ______________________ into the air
__________________ it reaches the intake of the compressor.
10. Pressure swing absorption (PSA) uses a material called ____________________ that
_____________________________________________ from the air that passes over or
through it.
11. Membrane separation uses a ________________________ that allows ___________ to flow
through it more readily than ____________________.