NAUI Open Water eLearning (New 2024/
2025 Update) Questions and Verified
Answers| 100% Correct| A Grade
QUESTION
Which of the following physical factors can make you incapable of sustaining the efforts
sometimes demanded when participating in recreational diving
Answer:
All of the above (inadequate sleep, recent head cold, recent ingestion of drugs)
QUESTION
If it is suspected that the air in a tank is contaminated due to its smell or tase:
Answer:
Do not use the tank and immediately call the dive shop that filled the tank so they can investigate
the problem
QUESTION
Physical fitness is an important consideration for scuba divers because it helps to prevent diving
accidents due to:
Answer:
Exhaustion
QUESTION
If during a dive you and your buddy become separated, you should:
Answer:
Spend no more than one minute looking then surface
,QUESTION
Which of the following limits should be established prior to every scuba dive?
Answer:
Maximum bottom time, maximum depth, minimum air pressure
QUESTION
Immediately upon reaching the dive site, you should:
Answer:
Observe conditions
QUESTION
The preferred action to take if you find yourself alone and out of air at 30ft in open water is:
Answer:
Weight dropping buoyant ascent
QUESTION
Currents that suddenly appear and disappear are ___ and ___ is the underwater movement of
water caused by wave action that you will experience when diving in areas close to shore.
Answer:
Transition; surge
QUESTION
Breathing dry air, a scuba diver tends to become dehydrated while diving due to:
Answer:
, Moisturizing dry inhaled air
QUESTION
The first color lost in the spectrum upon descent during a dive is
Answer:
red
QUESTION
Two types of materials that scuba tanks are made from are steel and __
Answer:
aluminum
QUESTION
When selecting a face mask, the most important thing to consider is:
Answer:
proper seal and fit
QUESTION
Pressure in the middle ear is equalized through a part of the body called the
Answer:
Eustachian tube
QUESTION
The stage of the regulator which reduces working tank pressure to intermediate pressure is
2025 Update) Questions and Verified
Answers| 100% Correct| A Grade
QUESTION
Which of the following physical factors can make you incapable of sustaining the efforts
sometimes demanded when participating in recreational diving
Answer:
All of the above (inadequate sleep, recent head cold, recent ingestion of drugs)
QUESTION
If it is suspected that the air in a tank is contaminated due to its smell or tase:
Answer:
Do not use the tank and immediately call the dive shop that filled the tank so they can investigate
the problem
QUESTION
Physical fitness is an important consideration for scuba divers because it helps to prevent diving
accidents due to:
Answer:
Exhaustion
QUESTION
If during a dive you and your buddy become separated, you should:
Answer:
Spend no more than one minute looking then surface
,QUESTION
Which of the following limits should be established prior to every scuba dive?
Answer:
Maximum bottom time, maximum depth, minimum air pressure
QUESTION
Immediately upon reaching the dive site, you should:
Answer:
Observe conditions
QUESTION
The preferred action to take if you find yourself alone and out of air at 30ft in open water is:
Answer:
Weight dropping buoyant ascent
QUESTION
Currents that suddenly appear and disappear are ___ and ___ is the underwater movement of
water caused by wave action that you will experience when diving in areas close to shore.
Answer:
Transition; surge
QUESTION
Breathing dry air, a scuba diver tends to become dehydrated while diving due to:
Answer:
, Moisturizing dry inhaled air
QUESTION
The first color lost in the spectrum upon descent during a dive is
Answer:
red
QUESTION
Two types of materials that scuba tanks are made from are steel and __
Answer:
aluminum
QUESTION
When selecting a face mask, the most important thing to consider is:
Answer:
proper seal and fit
QUESTION
Pressure in the middle ear is equalized through a part of the body called the
Answer:
Eustachian tube
QUESTION
The stage of the regulator which reduces working tank pressure to intermediate pressure is
