NAUI Nitrox Diver Final Exam.
Questions with Correct Verified
Answers. Latest 2026-2027. Graded A
"Credit" for the shallower portions of the dive - ANSDive computers offer
the advantage of giving the diver:
+/- 1% - ANSThe NAUI EAN32 and EAN36 Dive Tables have a tolerance
of _____ of the tables' value.
0.35 - ANSIf the PO2 at 30 msw (98 fsw) is 1.4 atmospheres, what is the
oxygen fraction of the breathing mixture?
0.36 - ANSIf a nitrox mix is 36% oxygen, what is the fraction of oxygen in
the gas mix?
1.4 ata - ANSThe accepted oxygen partial pressure exposure limit for
recreational nitrox diving is:
1.4 ata - ANSWhat is the oxygen partial pressure (PO2) of EAN38 at 27
msw (87 fsw)?
15- 33 msw (50-110 fsw) - ANSThe greatest advantages for diving using
nitrox occur in what depth range?
1
, 1992 - ANSNAUI sanctioned enriched air nitrox training in:
2.3 ata - ANSWhat is the nitrogen partial pressure (PN2) in EAN35 at a
depth of 26 msw (85 fsw)?
22 msw (71 fsw) - ANSCalculate the equivalent air depth for a 29 msw (95
fsw) dive using EAN36.
3.9 ata - ANSWhat is the partial pressure of nitrogen in air at 40 msw (130
fsw)?
300 meters (1000 feet) - ANSStandard NAUI Dive Tables can be used for
altitudes up to about:
32% oxygen and 36% oxygen - ANSHistorically, what are the two standard
nitrox mixes?
36 minutes - ANSUsing the NAUI EAN32 Dive Tables, a diver makes a
dive to 33 msw (110 fsw) for 20 minutes. After a surface interval of 2 hours,
the diver makes a second dive, also on EAN32 to a depth of 20 msw (65
fsw). What is the diver's maximum dive time for the second dive?
4.4 ata - ANSWhat is the absolute pressure at 34 msw (111 fsw)?
2
Questions with Correct Verified
Answers. Latest 2026-2027. Graded A
"Credit" for the shallower portions of the dive - ANSDive computers offer
the advantage of giving the diver:
+/- 1% - ANSThe NAUI EAN32 and EAN36 Dive Tables have a tolerance
of _____ of the tables' value.
0.35 - ANSIf the PO2 at 30 msw (98 fsw) is 1.4 atmospheres, what is the
oxygen fraction of the breathing mixture?
0.36 - ANSIf a nitrox mix is 36% oxygen, what is the fraction of oxygen in
the gas mix?
1.4 ata - ANSThe accepted oxygen partial pressure exposure limit for
recreational nitrox diving is:
1.4 ata - ANSWhat is the oxygen partial pressure (PO2) of EAN38 at 27
msw (87 fsw)?
15- 33 msw (50-110 fsw) - ANSThe greatest advantages for diving using
nitrox occur in what depth range?
1
, 1992 - ANSNAUI sanctioned enriched air nitrox training in:
2.3 ata - ANSWhat is the nitrogen partial pressure (PN2) in EAN35 at a
depth of 26 msw (85 fsw)?
22 msw (71 fsw) - ANSCalculate the equivalent air depth for a 29 msw (95
fsw) dive using EAN36.
3.9 ata - ANSWhat is the partial pressure of nitrogen in air at 40 msw (130
fsw)?
300 meters (1000 feet) - ANSStandard NAUI Dive Tables can be used for
altitudes up to about:
32% oxygen and 36% oxygen - ANSHistorically, what are the two standard
nitrox mixes?
36 minutes - ANSUsing the NAUI EAN32 Dive Tables, a diver makes a
dive to 33 msw (110 fsw) for 20 minutes. After a surface interval of 2 hours,
the diver makes a second dive, also on EAN32 to a depth of 20 msw (65
fsw). What is the diver's maximum dive time for the second dive?
4.4 ata - ANSWhat is the absolute pressure at 34 msw (111 fsw)?
2
