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PADI ENRICHED AIR DIVER EXAM NEWEST VERSION UPDATE
QUESTIONS WITH VERIFIED ANSWERS GRADED A+ | WITH
RATIONALES
1. What is the primary benefit of diving with enriched air?
A. Increased bottom time
B. Reduced risk of decompression sickness
C. Exposes you to less nitrogen
D. Improved underwater visibility
Answer: C. Exposes you to less nitrogen
Rationale: Enriched air nitrox has a higher percentage of oxygen and lower percentage of nitrogen,
reducing nitrogen absorption and the risk of decompression sickness.
2. When diving with enriched air nitrox, for a given depth, you should expect narcosis to be
_______________ compared to diving with air.
A. Less severe
B. More severe
C. The same as
D. Unpredictable
Answer: C. The same as
Rationale: Nitrogen narcosis is primarily caused by nitrogen partial pressure, which remains the same at
a given depth regardless of the gas blend.
3. Advantages of using a dive computer with enriched air nitrox include that...
A. It adds multilevel diving advantages for the longest no-stop dive time.
B. Most models will warn you if you exceed the maximum depth for your gas blend.
C. It eliminates the need for dive tables.
D. Both A and B
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Answer: D. Both A and B
Rationale: Dive computers with enriched air capabilities optimize no-stop dive times and provide safety
warnings for depth limits.
4. The general recommendation for scuba equipment (other than your cylinder) used with enriched air
is...
A. Use only equipment specifically designed for nitrox.
B. Everything can be used normally just as it is with air.
C. Replace all O-rings with nitrox-compatible ones.
D. Avoid using regulators with nitrox.
Answer: B. Everything can be used normally just as it is with air.
Rationale: Standard scuba equipment is generally compatible with enriched air, provided it is properly
maintained and oxygen-clean if required.
5. True or False: Some SCUBA manufacturers have special recommendations or requirements that you
should follow when using their equipment with enriched air nitrox.
A. True
B. False
Answer: A. True
Rationale: Some manufacturers may specify additional requirements for using their equipment with
enriched air to ensure safety and compatibility.
6. Nitrox requires a dedicated cylinder because...
A. It is heavier than air.
B. It is important no one accidentally confuses it with an air cylinder.
C. It cannot be stored in standard cylinders.
D. It requires special valves.
PADI ENRICHED AIR DIVER EXAM NEWEST VERSION UPDATE
QUESTIONS WITH VERIFIED ANSWERS GRADED A+ | WITH
RATIONALES
1. What is the primary benefit of diving with enriched air?
A. Increased bottom time
B. Reduced risk of decompression sickness
C. Exposes you to less nitrogen
D. Improved underwater visibility
Answer: C. Exposes you to less nitrogen
Rationale: Enriched air nitrox has a higher percentage of oxygen and lower percentage of nitrogen,
reducing nitrogen absorption and the risk of decompression sickness.
2. When diving with enriched air nitrox, for a given depth, you should expect narcosis to be
_______________ compared to diving with air.
A. Less severe
B. More severe
C. The same as
D. Unpredictable
Answer: C. The same as
Rationale: Nitrogen narcosis is primarily caused by nitrogen partial pressure, which remains the same at
a given depth regardless of the gas blend.
3. Advantages of using a dive computer with enriched air nitrox include that...
A. It adds multilevel diving advantages for the longest no-stop dive time.
B. Most models will warn you if you exceed the maximum depth for your gas blend.
C. It eliminates the need for dive tables.
D. Both A and B
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Answer: D. Both A and B
Rationale: Dive computers with enriched air capabilities optimize no-stop dive times and provide safety
warnings for depth limits.
4. The general recommendation for scuba equipment (other than your cylinder) used with enriched air
is...
A. Use only equipment specifically designed for nitrox.
B. Everything can be used normally just as it is with air.
C. Replace all O-rings with nitrox-compatible ones.
D. Avoid using regulators with nitrox.
Answer: B. Everything can be used normally just as it is with air.
Rationale: Standard scuba equipment is generally compatible with enriched air, provided it is properly
maintained and oxygen-clean if required.
5. True or False: Some SCUBA manufacturers have special recommendations or requirements that you
should follow when using their equipment with enriched air nitrox.
A. True
B. False
Answer: A. True
Rationale: Some manufacturers may specify additional requirements for using their equipment with
enriched air to ensure safety and compatibility.
6. Nitrox requires a dedicated cylinder because...
A. It is heavier than air.
B. It is important no one accidentally confuses it with an air cylinder.
C. It cannot be stored in standard cylinders.
D. It requires special valves.
