Enriched Air Nitrox
Knowledge Review test
questions and answers
The primary benefit of using enriched air nitrox is that it
Gives you longer no stop times compared to air.
When using EANx, you should expect narcosis to be
No different from diving with air.
The primary concern regarding enriched air nitrox and
equipment is high oxygen content.
True
The recommendations for using equipment, other than
cylinders, with enriched air with up to 40% oxygen,
include that (choose all that apply)
1. You can use regular scuba equipment for EANx blends
with up to 40% oxygen.
2. Local laws/standards may require special fitting or
cleanings.
3. Oxygen compatible lubricants are generally
recommended.
The potential hazards of improper enriched air filling
procedures include (choose all that apply)
1. Fire or explosion hazard.
2. Making the percentage of oxygen in the blend
questionable.
The markings that, according to broadly accepted dive
community practices, you should have on a scuba cylinder
used for enriched air nitrox include (choose all that apply)
Knowledge Review test
questions and answers
The primary benefit of using enriched air nitrox is that it
Gives you longer no stop times compared to air.
When using EANx, you should expect narcosis to be
No different from diving with air.
The primary concern regarding enriched air nitrox and
equipment is high oxygen content.
True
The recommendations for using equipment, other than
cylinders, with enriched air with up to 40% oxygen,
include that (choose all that apply)
1. You can use regular scuba equipment for EANx blends
with up to 40% oxygen.
2. Local laws/standards may require special fitting or
cleanings.
3. Oxygen compatible lubricants are generally
recommended.
The potential hazards of improper enriched air filling
procedures include (choose all that apply)
1. Fire or explosion hazard.
2. Making the percentage of oxygen in the blend
questionable.
The markings that, according to broadly accepted dive
community practices, you should have on a scuba cylinder
used for enriched air nitrox include (choose all that apply)
