Enriched Air Nitrox (Sc-Ean) Exam Latest Update This Year All With 180 Questions And Correct Detailed Answers

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ENRICHED AIR NITROX (SC-EAN) EXAM LATEST
UPDATE THIS YEAR ALL WITH 180 QUESTIONS
AND CORRECT DETAILED ANSWERS

Question: The major benefit of diving with nitrox is that it has a lower concentration of the gas
which limits our time at depth. This gas is:




A) Air

B) Nitrox

C) Oxygen

D) Nitrogen - CORRECT ANSWER✔✔Nitrogen




Question: Compared to air, Nitrox has a higher concentration of:




A) Air

B) Nitrogen

C) Carbon dioxide

D) Oxygen - CORRECT ANSWER✔✔Oxygen

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Question: Which Gas adds a lot of benefits to multi-level Computer Diving?




A) Nitrox

B) Nitrogen

C) pure Oxygen

D) Air - CORRECT ANSWER✔✔Nitrox




Question: The recommended limiting ppO2 and maximum limiting ppO2 for recreational nitrox
dives are:




A) 0.21/ 0.16

B) 0.21/ 0.79

C) 1.3/ 1.6

D) 1.4/ 1.6 - CORRECT ANSWER✔✔1.4/ 1.6




Question: The best way to compare the levels of oxygen found in any mixture of the breathing
gas we breathe under water is to compare:




A) Amount of breathing gas in the cylinder

B) Partial Pressure of Nitrogen

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C) The Dive plan

D) Partial Pressure of Oxygen - CORRECT ANSWER✔✔Partial Pressure of Oxygen




Question: Since CNS oxygen toxicity is among the greatest of risks in Nitrox diving, you must be
able to recognize:




A) Its positive aspects in deep diving

B) Its warning signs and symptoms, both in yourself and others

C) Its treatment

D) Its warning signs and symptoms, only in yourself - CORRECT ANSWER✔✔Its warning signs
and symptoms, both in yourself and others




Question: The chief sign of CNS oxygen toxicity, which can cause the loss of the second stage
and drowning is?




A) Joint Pain

B) Itchiness of the skin

C) Convulsions

D) Visual impairment - CORRECT ANSWER✔✔Convulsions