PADI Open Water Diver Certification| Questions
and Approved Answers| Latest Update 2026/2027|
Graded A+| Perfect Score 100%
alternate air source - Correct Answer ✅💯An extra second stage you use for sharing air with
a buddy
Attaches in triangle area between chin and hips
At a minimum, how many surface signaling devices should I have with me on a dive? -
Correct Answer ✅💯At least 2 - one audible and one visual
bow - Correct Answer ✅💯The front of the boat
BWRAF - Correct Answer ✅💯BCD, weight, releases, air, final check
danger/hazard - Correct Answer ✅💯
DIN system - Correct Answer ✅💯Regulator screws into valve
distress/in trouble - Correct Answer ✅💯
dive computer - Correct Answer ✅💯Tells you your time and depth underwater and guides
you in keeping dissolved nitrogen in your body within accepted limits
down/descend - Correct Answer ✅💯
first stage - Correct Answer ✅💯Supplies air to all the other components, connecting to the
cylinder valve by screw or clamp, reduces cylinder pressure to intermediate pressure (above
surrounding pressure)
For what 4 purposes might I carry a slate or wet book? - Correct Answer
✅💯Communication, to note dive plan limits, to record information during the dive, and for
the unexpected
galley - Correct Answer ✅💯The boat's kitchen area
go up/end dive - Correct Answer ✅💯
harness/jacket and cylinder band - Correct Answer ✅💯Holds cylinder on back
head - Correct Answer ✅💯The boat's toilet facilities
How close am I supposed to stay to a dive flag? - Correct Answer ✅💯Within 15 m/50 ft
How do dive tables work? - Correct Answer ✅💯Table 1 assigns a Pressure Group letter
that represents the theoretical amount of residual nitrogen based on your dive time and depth.
Table 2 gives you credit for nitrogen leaving your body during a surface interval. Table 3
provides reduced no stop times for a repetitive dive
, How do I avoid gas narcosis and what do I do if it occurs? - Correct Answer ✅💯Don't dive
too deep and immediately ascend to a shallower depth
How do I be a SAFE diver? - Correct Answer ✅💯You slowly ascend from every dive
How do I breathe to reduce anxiety when under stress? - Correct Answer ✅💯Do NOT
breathe faster - keep breathing slowly
How do I equalize as I descend? - Correct Answer ✅💯For ears and sinuses, pinch your
nose and blow gently, or wiggle your jaw and swallow
For mask, blow into it with nose
How do I generally care for scuba equipment? - Correct Answer ✅💯Rinse everything in
fresh water and dry it in the shade and store in a cool, dry place
How do I make a buoyant emergency ascent? - Correct Answer ✅💯When you have no air
and are very deep, ditch your weights, look up and swim to the surface making a continuous
ahhhhh sound into your regulator
How do I make a controlled emergency swimming ascent (CESA)? - Correct Answer
✅💯When you have no air and are approximately 6-9 m/20-30 ft from the surface, look up
and swim to the surface making a continuous ahhhhh sound into your regulator
How do I measure/define visibility as a diver? - Correct Answer ✅💯The distance you can
see horizontally underwater
How do I prevent oxygen toxicity? - Correct Answer ✅💯The higher the oxygen content,
the shallower the depth limit for using it while diving. Don't exceed 40 m/130 ft when diving
recreationally
How do my buddy and I manage our air supply together while diving? - Correct Answer
✅💯Plan your dive around who breathes air the fastest.
Subtract your reserve/ascent supply from your starting pressure to find out how much
pressure you have for the main part of the dive
To be safe, plan to use half your air coming down, and half coming back
How do we conduct the predive safety check? - Correct Answer ✅💯Using Begin With
Review And Friend (BWRAF)
How do you altitude dive? - Correct Answer ✅💯You start and end your dive at lower
surface pressure at altitude
How do you fly or ascend to altitude after diving? - Correct Answer ✅💯You start and end
your dive at sea level, and then go to lower surface pressure at altitude
How does a dive computer or dive table estimate the amount of nitrogen I absorb during a
dive? - Correct Answer ✅💯By using your dive time and depth information to calculate the
theoretical amount of nitrogen in your body
How does ascending affect my buoyancy? - Correct Answer ✅💯The volume increases,
adding buoyancy, so you RELEASE air from the BC
and Approved Answers| Latest Update 2026/2027|
Graded A+| Perfect Score 100%
alternate air source - Correct Answer ✅💯An extra second stage you use for sharing air with
a buddy
Attaches in triangle area between chin and hips
At a minimum, how many surface signaling devices should I have with me on a dive? -
Correct Answer ✅💯At least 2 - one audible and one visual
bow - Correct Answer ✅💯The front of the boat
BWRAF - Correct Answer ✅💯BCD, weight, releases, air, final check
danger/hazard - Correct Answer ✅💯
DIN system - Correct Answer ✅💯Regulator screws into valve
distress/in trouble - Correct Answer ✅💯
dive computer - Correct Answer ✅💯Tells you your time and depth underwater and guides
you in keeping dissolved nitrogen in your body within accepted limits
down/descend - Correct Answer ✅💯
first stage - Correct Answer ✅💯Supplies air to all the other components, connecting to the
cylinder valve by screw or clamp, reduces cylinder pressure to intermediate pressure (above
surrounding pressure)
For what 4 purposes might I carry a slate or wet book? - Correct Answer
✅💯Communication, to note dive plan limits, to record information during the dive, and for
the unexpected
galley - Correct Answer ✅💯The boat's kitchen area
go up/end dive - Correct Answer ✅💯
harness/jacket and cylinder band - Correct Answer ✅💯Holds cylinder on back
head - Correct Answer ✅💯The boat's toilet facilities
How close am I supposed to stay to a dive flag? - Correct Answer ✅💯Within 15 m/50 ft
How do dive tables work? - Correct Answer ✅💯Table 1 assigns a Pressure Group letter
that represents the theoretical amount of residual nitrogen based on your dive time and depth.
Table 2 gives you credit for nitrogen leaving your body during a surface interval. Table 3
provides reduced no stop times for a repetitive dive
, How do I avoid gas narcosis and what do I do if it occurs? - Correct Answer ✅💯Don't dive
too deep and immediately ascend to a shallower depth
How do I be a SAFE diver? - Correct Answer ✅💯You slowly ascend from every dive
How do I breathe to reduce anxiety when under stress? - Correct Answer ✅💯Do NOT
breathe faster - keep breathing slowly
How do I equalize as I descend? - Correct Answer ✅💯For ears and sinuses, pinch your
nose and blow gently, or wiggle your jaw and swallow
For mask, blow into it with nose
How do I generally care for scuba equipment? - Correct Answer ✅💯Rinse everything in
fresh water and dry it in the shade and store in a cool, dry place
How do I make a buoyant emergency ascent? - Correct Answer ✅💯When you have no air
and are very deep, ditch your weights, look up and swim to the surface making a continuous
ahhhhh sound into your regulator
How do I make a controlled emergency swimming ascent (CESA)? - Correct Answer
✅💯When you have no air and are approximately 6-9 m/20-30 ft from the surface, look up
and swim to the surface making a continuous ahhhhh sound into your regulator
How do I measure/define visibility as a diver? - Correct Answer ✅💯The distance you can
see horizontally underwater
How do I prevent oxygen toxicity? - Correct Answer ✅💯The higher the oxygen content,
the shallower the depth limit for using it while diving. Don't exceed 40 m/130 ft when diving
recreationally
How do my buddy and I manage our air supply together while diving? - Correct Answer
✅💯Plan your dive around who breathes air the fastest.
Subtract your reserve/ascent supply from your starting pressure to find out how much
pressure you have for the main part of the dive
To be safe, plan to use half your air coming down, and half coming back
How do we conduct the predive safety check? - Correct Answer ✅💯Using Begin With
Review And Friend (BWRAF)
How do you altitude dive? - Correct Answer ✅💯You start and end your dive at lower
surface pressure at altitude
How do you fly or ascend to altitude after diving? - Correct Answer ✅💯You start and end
your dive at sea level, and then go to lower surface pressure at altitude
How does a dive computer or dive table estimate the amount of nitrogen I absorb during a
dive? - Correct Answer ✅💯By using your dive time and depth information to calculate the
theoretical amount of nitrogen in your body
How does ascending affect my buoyancy? - Correct Answer ✅💯The volume increases,
adding buoyancy, so you RELEASE air from the BC
