SSI Enriched Air Nitrox Exam Questions
& Answers!!
Which kind of warnings should you observe and adhere to while diving with a dive
computer ? - ANSWER Ascent rates
Decompression limits
Oxygen / Nitrogen exposure
all answers are correct
If you experience a computer failure underwater , you should : - ANSWER Do not enter
the water again for at least 24 hours and watch for signs of decompression sickness
Signal your buddy , and ascend with them while they monitor your ascent on their
computer
As an added precaution , perform a longer than normal safety stop if breathing gas
supply permits
All answers are correct
Which of the following is a significant difference between planning a dive on nitrox and
planning a dive using air ? - ANSWER You must also manage your exposure to oxygen
Which special skills are required to dive with nitrox ? - ANSWER None
The risk of CNS oxygen toxicity becomes more substantial above : - ANSWER A ppO2
of 1.6 bar
A common misconception is , that compared to air , Nitrox enables Divers to dive : -
ANSWER deeper
How is the ppO2 of a breathing gas calculated ? - ANSWER Multiplying ambient
pressure by the fraction of oxygen ( FO2 ) in the breathing gas
The single most important aspect of managing your exposure to oxygen is , controlling
the intensity of that exposure by determining : - ANSWER A Maximum Operating Depth
( MOD ) , based on a limiting pp02 of 1.4 bar or less .
Nitrox and the acronym EANx refer to mixtures with oxygen concentrations ( FO2 )
higher than : - ANSWER 21 %
The potential benefits of using the same dive tables or dive computers that you do when
diving air are : - ANSWER You greatly simplify the dive - planning process by using the
same tools as you do when diving air .
You reduce your risk of DCS to some degree by basing your dive plans on the
assumption your breathing mixture contains more nitrogen than it actually does .
You ensure a greater safety margin
& Answers!!
Which kind of warnings should you observe and adhere to while diving with a dive
computer ? - ANSWER Ascent rates
Decompression limits
Oxygen / Nitrogen exposure
all answers are correct
If you experience a computer failure underwater , you should : - ANSWER Do not enter
the water again for at least 24 hours and watch for signs of decompression sickness
Signal your buddy , and ascend with them while they monitor your ascent on their
computer
As an added precaution , perform a longer than normal safety stop if breathing gas
supply permits
All answers are correct
Which of the following is a significant difference between planning a dive on nitrox and
planning a dive using air ? - ANSWER You must also manage your exposure to oxygen
Which special skills are required to dive with nitrox ? - ANSWER None
The risk of CNS oxygen toxicity becomes more substantial above : - ANSWER A ppO2
of 1.6 bar
A common misconception is , that compared to air , Nitrox enables Divers to dive : -
ANSWER deeper
How is the ppO2 of a breathing gas calculated ? - ANSWER Multiplying ambient
pressure by the fraction of oxygen ( FO2 ) in the breathing gas
The single most important aspect of managing your exposure to oxygen is , controlling
the intensity of that exposure by determining : - ANSWER A Maximum Operating Depth
( MOD ) , based on a limiting pp02 of 1.4 bar or less .
Nitrox and the acronym EANx refer to mixtures with oxygen concentrations ( FO2 )
higher than : - ANSWER 21 %
The potential benefits of using the same dive tables or dive computers that you do when
diving air are : - ANSWER You greatly simplify the dive - planning process by using the
same tools as you do when diving air .
You reduce your risk of DCS to some degree by basing your dive plans on the
assumption your breathing mixture contains more nitrogen than it actually does .
You ensure a greater safety margin
