PADI Open Water Final Exam B | 2025/2026 Edition | 100%
Correct Answers | Verified & Updated
This document includes verified and updated questions with 100% correct answers from
the PADI Open Water Final Exam B, prepared for the 2025/2026 certification cycle. It
covers critical diving knowledge such as dive theory, depth and time limits, air
consumption, emergency procedures, and safe diving practices. Expert-verified and
graded A+, this study guide also includes knowledge review content based on official
PADI Open Water Diver materials.
PADI Open Water Final Exam
Study
1 bar is what depth?
0m/0ft
2 bar is what depth?
33ft/10m
2 Types of aquatic interactions are?
passive and active
3 bar is what depth?
66ft/20m
3 types of valves are?
K; J; DIN
4 bar is what depth?
99ft/30m
75% heat loss in body occurs in?
The head
Air is made up of?
Nitrogen and Oxygen
Aquatic life injuries are a result of?
diver carelessness
As you descend, colors fade from...
Red to blue
As you go deeper you use your air ___?
faster
Avoid bottom contact by:
remaining neutrally buoyant, swimming with your feet up off the bottom
Before diving, don't
drink excessively the night before
Best tidal level for diving is...
high tide
T/F? Carry a slate with you in order to communicate/carry info.
,True
Collecting bags are useful for
collecting under water garbage; carrying several objects at once
Decompression illness implies
both decompression sickness and lung over expansion injuries
Do tides generate rip currents?
No
Do you always feel the pressure in body air spaces?
Only if the pressure is different inside and outside of the air spaces.
Factors that affect visibility are?
water movement, weather, suspended particles, bottom composition
Features of the BCD are
Hold enough air; large deflation hose; low pressure inflation system; relief valve;
comfortable fit
Features of a snorkel are
large bore; not too long; smooth round bends
Features you look for in a mask
low profile; nose or finger pockets; wide FOV; adjustable strap; comfortable skirt;
tempered-glass lens plate
First rule of diving
Always breathe continuously
Fresh water dive considerations include
deep water, altitude, thermoclines, limited visibility
How does the buoyancy of an object differ in fresh/salt water?
More buoyant in salt water than in fresh water
How do you equalize air spaces in your ears?
Blow and squeeze nose; wiggle your jaw; swallowing
How do you know a mask fits?
"sniff" test
How do you maintain air volume as you descend?
equalize
How do you navigate a straight line with a compass
Point the lubber in your travel direction, put the index marks over the compass needle.
How do you prevent water from entering your scuba tank?
Never completely drain it of air pressure
How do you react to reverse block?
Slow/stop ascent and give air time to work its way out
How do you react to running low on or out of air?
1. Make a normal ascent
2. Ascend with an alternate air source
3. Ascend using a controlled emergency swimming ascent
4. Buoyant emergency ascent
How is air density affected when depth is increased?
It increases.
How is air volume affected when depth is increased?
It decreases.
, How often does your regulator need to be tested?
Annually
How often should the cylinder be inspected?
At least once a year
How often should you equalize?
Every few feet before discomfort
How to check your buddy
BWRAF (Begin with review and friend)
Hypothermia
Body cools so much it can't function
If a diver has contaminated air, you should
give the diver fresh air, give the diver oxygen, reach medical attention
If caught in a rip current, you should
swim parallel to shore
If nitrogen narcosis occurs
ascend to a shallower depth
If you become over exerted
stop all activity and rest
If you exceed the no decompression limit of your dive computer you should
make an emergency decompression stop
If you exceed your no decompression limit by less than 5 minutes you should
ascend to 15' and wait 8 minutes; don't dive for 6 hours
If you exceed your no decompression limit by more than five minutes you should
ascend to 15 feet and wait 15 minutes; don't dive for 24 hours
If you have decompression illness you should
have emergency oxygen
lie on left side if unresponsive
contact local emergency medical care
contact local diver emergency service
If you're properly weighed you will
float at eye level with an empty BCD and holding a normal breath
Important part of weight system is the
right hand release
Longshore currents push you
parallel to shore
Low pressure inflator allows for
inflation/deflation of BCD
Panicked divers typically:
push off their masks, spit their regulators, need immediate help
Parts of a compass are
index marks; magnetic north needle; bezel; lubber line
Parts of regulator
First stage
Second stages
Dust cover
Purge Button
Correct Answers | Verified & Updated
This document includes verified and updated questions with 100% correct answers from
the PADI Open Water Final Exam B, prepared for the 2025/2026 certification cycle. It
covers critical diving knowledge such as dive theory, depth and time limits, air
consumption, emergency procedures, and safe diving practices. Expert-verified and
graded A+, this study guide also includes knowledge review content based on official
PADI Open Water Diver materials.
PADI Open Water Final Exam
Study
1 bar is what depth?
0m/0ft
2 bar is what depth?
33ft/10m
2 Types of aquatic interactions are?
passive and active
3 bar is what depth?
66ft/20m
3 types of valves are?
K; J; DIN
4 bar is what depth?
99ft/30m
75% heat loss in body occurs in?
The head
Air is made up of?
Nitrogen and Oxygen
Aquatic life injuries are a result of?
diver carelessness
As you descend, colors fade from...
Red to blue
As you go deeper you use your air ___?
faster
Avoid bottom contact by:
remaining neutrally buoyant, swimming with your feet up off the bottom
Before diving, don't
drink excessively the night before
Best tidal level for diving is...
high tide
T/F? Carry a slate with you in order to communicate/carry info.
,True
Collecting bags are useful for
collecting under water garbage; carrying several objects at once
Decompression illness implies
both decompression sickness and lung over expansion injuries
Do tides generate rip currents?
No
Do you always feel the pressure in body air spaces?
Only if the pressure is different inside and outside of the air spaces.
Factors that affect visibility are?
water movement, weather, suspended particles, bottom composition
Features of the BCD are
Hold enough air; large deflation hose; low pressure inflation system; relief valve;
comfortable fit
Features of a snorkel are
large bore; not too long; smooth round bends
Features you look for in a mask
low profile; nose or finger pockets; wide FOV; adjustable strap; comfortable skirt;
tempered-glass lens plate
First rule of diving
Always breathe continuously
Fresh water dive considerations include
deep water, altitude, thermoclines, limited visibility
How does the buoyancy of an object differ in fresh/salt water?
More buoyant in salt water than in fresh water
How do you equalize air spaces in your ears?
Blow and squeeze nose; wiggle your jaw; swallowing
How do you know a mask fits?
"sniff" test
How do you maintain air volume as you descend?
equalize
How do you navigate a straight line with a compass
Point the lubber in your travel direction, put the index marks over the compass needle.
How do you prevent water from entering your scuba tank?
Never completely drain it of air pressure
How do you react to reverse block?
Slow/stop ascent and give air time to work its way out
How do you react to running low on or out of air?
1. Make a normal ascent
2. Ascend with an alternate air source
3. Ascend using a controlled emergency swimming ascent
4. Buoyant emergency ascent
How is air density affected when depth is increased?
It increases.
How is air volume affected when depth is increased?
It decreases.
, How often does your regulator need to be tested?
Annually
How often should the cylinder be inspected?
At least once a year
How often should you equalize?
Every few feet before discomfort
How to check your buddy
BWRAF (Begin with review and friend)
Hypothermia
Body cools so much it can't function
If a diver has contaminated air, you should
give the diver fresh air, give the diver oxygen, reach medical attention
If caught in a rip current, you should
swim parallel to shore
If nitrogen narcosis occurs
ascend to a shallower depth
If you become over exerted
stop all activity and rest
If you exceed the no decompression limit of your dive computer you should
make an emergency decompression stop
If you exceed your no decompression limit by less than 5 minutes you should
ascend to 15' and wait 8 minutes; don't dive for 6 hours
If you exceed your no decompression limit by more than five minutes you should
ascend to 15 feet and wait 15 minutes; don't dive for 24 hours
If you have decompression illness you should
have emergency oxygen
lie on left side if unresponsive
contact local emergency medical care
contact local diver emergency service
If you're properly weighed you will
float at eye level with an empty BCD and holding a normal breath
Important part of weight system is the
right hand release
Longshore currents push you
parallel to shore
Low pressure inflator allows for
inflation/deflation of BCD
Panicked divers typically:
push off their masks, spit their regulators, need immediate help
Parts of a compass are
index marks; magnetic north needle; bezel; lubber line
Parts of regulator
First stage
Second stages
Dust cover
Purge Button
