PADI Open Water Exam questions with detailed answers.
ears, sinuses, mask - accurate answers-three major body air spaces that
increasing pressure affects
squeeze - accurate answers-caused by greater pressure outside the air space
than inside it, and causes discomfort or injury by pressure balance that pushes
tissues into an air space
ear squeeze - accurate answers-pressure pushing your eardrum and
surrounding tissues inward
sinus squeeze - accurate answers-discomfort in cheeks, central forehead, and
along nose
mask squeeze - accurate answers-pulling or sucking sensation on face
equalization - accurate answers-keeping the pressure equal with outside
pressure, so people stay at their normal volume
ears and sinuses - accurate answers-to equalize ______ ______ __________: pinch
your nose and blow gently against it
mask - accurate answers-to equalize a _______: blow air through your nose as
you descend
as often as you can - accurate answers-when should you equalize?
stop; signal - accurate answers-if you can't equalize, _______ your descent
immediately, and __________ your buddies or instructor
gently - accurate answers-how should you equalize?
breathe continuously and never hold your breath - accurate answers-the most
important rule of scuba diving
lung over-expansion - accurate answers-what can occur from not following
the most important rule of scuba diving?
, reverse block (squeeze) - accurate answers-results when expanding air
becomes trapped in a body air space
slow/stop ascent; descend a meter (to reduce discomfort and give the trapped
air time to work its way out) - accurate answers-what should i do if i feel
discomfort in my ears, sinuses, or mask?
1/2 - accurate answers-how long does my air supply last at 10 meters/33 feet
than at surface?
1/3 - accurate answers-how long does my air supply last at 20 meters/66 feet
than at surface?
deep, slow breaths - accurate answers-what type of breaths should you take
when trying to efficiently breathe dense air underwater?
water displacement - accurate answers-what causes buoyancy?
positive buoyancy - accurate answers-an object weighs less than the water it
displaces; it floats
negative buoyancy - accurate answers-an object weight more than the water it
displaces; it sinks
neutral buoyancy - accurate answers-an object weighs the same as the water
it displaces; it neither floats nor sinks
salt water weighs more (due to minerals) - accurate answers-why does salt
water cause more buoyancy than fresh water?
bcd and weight system - accurate answers-what two pieces of equipment do I
normally use to control buoyancy?
chest expands when inhaling (increasing water displacement) - accurate
answers-how does breathing affect your buoyancy?
buddy system - accurate answers-diving with another diver or divers in a
team that provides shared assistance and safety benefits
ears, sinuses, mask - accurate answers-three major body air spaces that
increasing pressure affects
squeeze - accurate answers-caused by greater pressure outside the air space
than inside it, and causes discomfort or injury by pressure balance that pushes
tissues into an air space
ear squeeze - accurate answers-pressure pushing your eardrum and
surrounding tissues inward
sinus squeeze - accurate answers-discomfort in cheeks, central forehead, and
along nose
mask squeeze - accurate answers-pulling or sucking sensation on face
equalization - accurate answers-keeping the pressure equal with outside
pressure, so people stay at their normal volume
ears and sinuses - accurate answers-to equalize ______ ______ __________: pinch
your nose and blow gently against it
mask - accurate answers-to equalize a _______: blow air through your nose as
you descend
as often as you can - accurate answers-when should you equalize?
stop; signal - accurate answers-if you can't equalize, _______ your descent
immediately, and __________ your buddies or instructor
gently - accurate answers-how should you equalize?
breathe continuously and never hold your breath - accurate answers-the most
important rule of scuba diving
lung over-expansion - accurate answers-what can occur from not following
the most important rule of scuba diving?
, reverse block (squeeze) - accurate answers-results when expanding air
becomes trapped in a body air space
slow/stop ascent; descend a meter (to reduce discomfort and give the trapped
air time to work its way out) - accurate answers-what should i do if i feel
discomfort in my ears, sinuses, or mask?
1/2 - accurate answers-how long does my air supply last at 10 meters/33 feet
than at surface?
1/3 - accurate answers-how long does my air supply last at 20 meters/66 feet
than at surface?
deep, slow breaths - accurate answers-what type of breaths should you take
when trying to efficiently breathe dense air underwater?
water displacement - accurate answers-what causes buoyancy?
positive buoyancy - accurate answers-an object weighs less than the water it
displaces; it floats
negative buoyancy - accurate answers-an object weight more than the water it
displaces; it sinks
neutral buoyancy - accurate answers-an object weighs the same as the water
it displaces; it neither floats nor sinks
salt water weighs more (due to minerals) - accurate answers-why does salt
water cause more buoyancy than fresh water?
bcd and weight system - accurate answers-what two pieces of equipment do I
normally use to control buoyancy?
chest expands when inhaling (increasing water displacement) - accurate
answers-how does breathing affect your buoyancy?
buddy system - accurate answers-diving with another diver or divers in a
team that provides shared assistance and safety benefits
