Nitrox Class– Questions With Verified Solutions
Nitrox is only technical divers Correct Answer - false
According to dalton's law the pressure exerted by each gas in a mixture will
add up to the total pressure of the gas Correct Answer - true
A diver using EAN33 at a depth of 21msw (70fsw) has a 1.025 partial pressure
of oxygen Correct Answer - true
21/10=2.1
2.1+1=3.1
3.1*.33=1.025
OR
70/33=2.1
2.1+1=3.1
3.1*.33=1.025
It is your responsibility to know what breathing mixture is in your cylinder
and to maintain your equipment in a safe manner for use with nitrox
Correct Answer - true
All RGBM divers should have a 3 min safety stop at 5 msw Correct Answer -
true
The 40% rule is based on published peer reviewed research and is a definitive
industry standard Correct Answer - false
Air is mostly comprised of oxygen and other miscellaneous gases with the
least abundant gas being Nitrogen Correct Answer - false
The ODIGTML order was originally determined to acount for the most
potentially serious physiological concerns facing dives Correct Answer -
true
EAN41 is the best mix at a depth of 24.3 (80fsw) with PPO2 of 1.4 Correct
Answer - false
math = 0.408 but cant round down
, Any equipment that is going to be exposed to a gas that contains greater than
40% oxygen must be oxygen cleaned and free of hydrocarbons Correct
Answer - true
Nitorx analyzers never need maintenance or to be calibrated Correct
Answer - false
The press of 22.7 msw is 2.27ATA Correct Answer - false
Using boyles law we can know that if you compared two 11 liter clyinders
with different pressures, the one with double the pressure also has greater
volume of gas Correct Answer - true
At 1 atm there is 79% nitrogen or partial pressure of .79. as the diver descend
the percentage of gas does not change by the partial pressure will increase
with increased pressure Correct Answer - true
The best mix for 28 msw is EAN 36 with pp of oxygen at 1.4 Correct Answer
- true
Henry's law addressess the quantity of gas that will dissolve and describes the
rate at which the gas will dissolve Correct Answer - false
Using NOAA oxygen exposure limits the 24 limit at maximum recreational
pressure (1.4) is 200 minutes Correct Answer - false it is 180
Pulmonary oxygen toxicity is significant concern for recreational nitrox divers
Correct Answer - fales
Signs and symptoms of DCS do not vary and can be easily identified no matter
the injury or severity Correct Answer - false
Using nitrox prevents nitrogen narcosis Correct Answer - false
The recreational diver's oxygen partial pressure range is from 0.21 to 1.4 with
contingency of 1.6 Correct Answer - true
It is safe for diver who has a has mixture of 34% to use a nitrox 36 table
Correct Answer - false
Nitrox is only technical divers Correct Answer - false
According to dalton's law the pressure exerted by each gas in a mixture will
add up to the total pressure of the gas Correct Answer - true
A diver using EAN33 at a depth of 21msw (70fsw) has a 1.025 partial pressure
of oxygen Correct Answer - true
21/10=2.1
2.1+1=3.1
3.1*.33=1.025
OR
70/33=2.1
2.1+1=3.1
3.1*.33=1.025
It is your responsibility to know what breathing mixture is in your cylinder
and to maintain your equipment in a safe manner for use with nitrox
Correct Answer - true
All RGBM divers should have a 3 min safety stop at 5 msw Correct Answer -
true
The 40% rule is based on published peer reviewed research and is a definitive
industry standard Correct Answer - false
Air is mostly comprised of oxygen and other miscellaneous gases with the
least abundant gas being Nitrogen Correct Answer - false
The ODIGTML order was originally determined to acount for the most
potentially serious physiological concerns facing dives Correct Answer -
true
EAN41 is the best mix at a depth of 24.3 (80fsw) with PPO2 of 1.4 Correct
Answer - false
math = 0.408 but cant round down
, Any equipment that is going to be exposed to a gas that contains greater than
40% oxygen must be oxygen cleaned and free of hydrocarbons Correct
Answer - true
Nitorx analyzers never need maintenance or to be calibrated Correct
Answer - false
The press of 22.7 msw is 2.27ATA Correct Answer - false
Using boyles law we can know that if you compared two 11 liter clyinders
with different pressures, the one with double the pressure also has greater
volume of gas Correct Answer - true
At 1 atm there is 79% nitrogen or partial pressure of .79. as the diver descend
the percentage of gas does not change by the partial pressure will increase
with increased pressure Correct Answer - true
The best mix for 28 msw is EAN 36 with pp of oxygen at 1.4 Correct Answer
- true
Henry's law addressess the quantity of gas that will dissolve and describes the
rate at which the gas will dissolve Correct Answer - false
Using NOAA oxygen exposure limits the 24 limit at maximum recreational
pressure (1.4) is 200 minutes Correct Answer - false it is 180
Pulmonary oxygen toxicity is significant concern for recreational nitrox divers
Correct Answer - fales
Signs and symptoms of DCS do not vary and can be easily identified no matter
the injury or severity Correct Answer - false
Using nitrox prevents nitrogen narcosis Correct Answer - false
The recreational diver's oxygen partial pressure range is from 0.21 to 1.4 with
contingency of 1.6 Correct Answer - true
It is safe for diver who has a has mixture of 34% to use a nitrox 36 table
Correct Answer - false
