ENRICHED AIR NITROX CORRECT FINAL EXAM
QUESTIONS AND ANSWERS SURE A+
✔✔Any cylinder containing a gas other than air must be:
A) O2 clean
B) Clearly labeled
C) Marked with a black X
D) Painted yellow/Green - ✔✔Clearly labeled
✔✔O2 cleaned and O2 service rated cylinders will maintain their rating if they are filled
only with:
A) Nitrogen
B) Oxygen-compatible gas
C) Any breathing gas
D) Air - ✔✔Oxygen-compatible gas
✔✔If a diver mistakenly uses a Nitrox cylinder, thinking it was air, he/she would risk:
A) Unanticipated CNS oxygen toxicity
B) Shallow water black out
C) Nothing, if he/she is not diving deeper than 40 meters
D) Decompression sickness - ✔✔Unanticipated CNS oxygen toxicity
✔✔SSI offers a complete maintenance program designed to keep the components of
your Total Diving System performing to the best of their potential. This program is:
A) SSI Equipment Service Program
B) EAN Nitrox Program
C) SSI Oxygen Program
D) SSI Cleaning Program - ✔✔SSI Equipment Service Program
, ✔✔Which special skills are required in the water to dive with Nitrox?
A) Ability to carry up to 2 cylinders
B) Buddy breathing
C) None
D) Perfect buoyancy - ✔✔None
✔✔Which special skills are required before you dive with Nitrox?
A) None
B) Correct analysis of cylinder content in the field and at the blending station
C) Ability to carry up to 2 cylinders
D) Buddy breathing - ✔✔Correct analysis of cylinder content in the field and at the
blending station
✔✔Equivalent Air Depth (EAD) means:
A) Breathing a particular Nitrox mixture at depth exposes your body to a lower oxygen
level experience by breathing air at the same depth
B) There is no difference between diving air or Nitrox at the same depth
C) Breathing a particular Nitrox mixture at depth exposes your body to a higher overall
nitrogen level experienced by breathing air at a shallower depth
D) Breathing a particular Nitrox mixture at a depth exposes your body to same overall
nitrogen level experienced by breathing air at a shallower depth - ✔✔Breathing a
particular Nitrox mixture at a depth exposes your body to same overall nitrogen level
experienced by breathing air at a shallower depth
✔✔Which kind of warnings should you observe and adhere to while diving with a dive
computer?
A) Oxygen/Nitrogen exposure
B) all answers are correct
C) Ascent rates
D) Decompression limits - ✔✔all answers are correct
✔✔The way in which planning nitrox dives differs most from planning air dives
because?
A) You must also manage your exposure to nitrogen
B) You must also manage your exposure to oxygen
C) You have to plan longer surface intervals
D) You have to dive more deep - ✔✔You must also manage your exposure to oxygen
✔✔On each dive you determine the percentage of the CNS "clock" limit that you
received. When making multiple dives you have to:
QUESTIONS AND ANSWERS SURE A+
✔✔Any cylinder containing a gas other than air must be:
A) O2 clean
B) Clearly labeled
C) Marked with a black X
D) Painted yellow/Green - ✔✔Clearly labeled
✔✔O2 cleaned and O2 service rated cylinders will maintain their rating if they are filled
only with:
A) Nitrogen
B) Oxygen-compatible gas
C) Any breathing gas
D) Air - ✔✔Oxygen-compatible gas
✔✔If a diver mistakenly uses a Nitrox cylinder, thinking it was air, he/she would risk:
A) Unanticipated CNS oxygen toxicity
B) Shallow water black out
C) Nothing, if he/she is not diving deeper than 40 meters
D) Decompression sickness - ✔✔Unanticipated CNS oxygen toxicity
✔✔SSI offers a complete maintenance program designed to keep the components of
your Total Diving System performing to the best of their potential. This program is:
A) SSI Equipment Service Program
B) EAN Nitrox Program
C) SSI Oxygen Program
D) SSI Cleaning Program - ✔✔SSI Equipment Service Program
, ✔✔Which special skills are required in the water to dive with Nitrox?
A) Ability to carry up to 2 cylinders
B) Buddy breathing
C) None
D) Perfect buoyancy - ✔✔None
✔✔Which special skills are required before you dive with Nitrox?
A) None
B) Correct analysis of cylinder content in the field and at the blending station
C) Ability to carry up to 2 cylinders
D) Buddy breathing - ✔✔Correct analysis of cylinder content in the field and at the
blending station
✔✔Equivalent Air Depth (EAD) means:
A) Breathing a particular Nitrox mixture at depth exposes your body to a lower oxygen
level experience by breathing air at the same depth
B) There is no difference between diving air or Nitrox at the same depth
C) Breathing a particular Nitrox mixture at depth exposes your body to a higher overall
nitrogen level experienced by breathing air at a shallower depth
D) Breathing a particular Nitrox mixture at a depth exposes your body to same overall
nitrogen level experienced by breathing air at a shallower depth - ✔✔Breathing a
particular Nitrox mixture at a depth exposes your body to same overall nitrogen level
experienced by breathing air at a shallower depth
✔✔Which kind of warnings should you observe and adhere to while diving with a dive
computer?
A) Oxygen/Nitrogen exposure
B) all answers are correct
C) Ascent rates
D) Decompression limits - ✔✔all answers are correct
✔✔The way in which planning nitrox dives differs most from planning air dives
because?
A) You must also manage your exposure to nitrogen
B) You must also manage your exposure to oxygen
C) You have to plan longer surface intervals
D) You have to dive more deep - ✔✔You must also manage your exposure to oxygen
✔✔On each dive you determine the percentage of the CNS "clock" limit that you
received. When making multiple dives you have to:
