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PADI Open Water Diver Final Exam|144 Complete Answered Questions
PADI Open Water Diver Final Exam|144 Complete Answered Questions
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PADI Open Water Diver Final Exam|144 Complete Answered Questions
As you descend in water the pressure - -increases
-A depth change of 10 meters/33 feet causes a pressure change of - -2
bar/ata
-if you take 6 liters of air from the surface to 20 metres/66 feet, the volume
will be - -2 liters
-The density of the air at 20 meters/66 feet would be _______ the density at
the surface of - -three times
-A balloon fully inflated and sealed at 10 meters/33 feet, would probably
________ during ascent to the surface. - -expand/burst
-As I descend, increasing pressure affects my _________ - -mask, ears,
sinuses
-A squeeze is caused by - -a pressure imbalance between the surrounding
pressure and an air space
-Equalization is the process of - -adding air to an air space
-I should equalize - -before i feel pain or discomfort
-I'm descending and discovering I can't equalize. The first thing I would do is
- -stop my descent and signal my buddy/the instructor
-On a day I plan to go diving, I wake up with my sinuses blocked due to a
cold or allergy. I should - -cancel the dive until I'm well
-When scuba diving, normal breathing keeps your lungs equalized to the
surrounding pressure (T/F) - -True
-The most important rule in scuba diving is to - -breathe continuously and
never hold your breath
-Failure to follow the most important rule in scuba diving can cause severe
lung overexpansion injuries, which can result in paralysis or death (T/F) - -
true
, -During ascent I feel discomfort in my ears. I should - -stop, descend slightly
and allow trapped air to work its way out
-Depth 0m/0ft what is the pressure, volume and density - -1 bar/ata, 1
volume, 1x density
-Depth 10m/33ft what is the pressure, volume and density - -2 bar/ata, 1/2
volume, 2x density
-Depth 20m/66ft what is the pressure, volume and density - -3 bar/ata, 1/3
volume, 3x density
-Depth 30m/99ft what is the pressure, volume and density - -4 bar/ata, 1/4
volume, 4x density
-As I descend, I need to equalize air spaces. Which of the following are
accepted ways of equalizing my ears?
a. Block my nose and attempt to gently blow through it.
b. Swallow and wiggle the jaw from side to side
c. Block my nose and blow forcefully for an extended period - -Block my
nose and attempt to gently blow through it + swallow and wiggle the jaw
from side to side
-I should equalize
a. early and often, before I feel discomfort
b. when I begin to feel discomfort
c. only if I experience pain - -early and often, before I feel discomfort
-I should not dive with a cold, nor use medications to dive with a cold. True
or False - -True
-Failure to follow the most important rule in scuba diving can cause serious
lung overexpansion (lung rupture) injuries, which in turn can cause paralysis
and death. True or False - -True
-During a descent, I try to equalize but discover I'm having trouble doing so.
Which of the following is correct?
a. Slow my descent, signal my buddy to slow down and equalize more
forcefully
b. Stop my descent, signal my buddy to slow down and try again
c. Continue my descent while equalizing repeatedly
d. Signal my buddy, ascend to the surface and start my descent over the - -
Stop my descent, signal my buddy to slow down and try again
-My buddy and I are planning a dive to 18m/60ft. We would expect our air
supply to last _______ at 10m/33ft, all else being the same.
, a. longer than
b. shorter than
c. the same as - -shorter than
-During a dive, I swim hard to keep up with the fish that interests me, but
shortly I begin to feel like I can't get enough air. The correct action would be
to:
a. Signal my buddy and head up to the surface
b. Use the regulator purge button to boost air flow
c. Stop all activity and rest to restore proper deep, slow breathing - -Stop all
activity and rest to restore proper deep, slow breathing
-An object that is neutrally buoyant in fresh water will ______ in salt water.
a. sink
b. float
c. be neutrally buoyant - -float
-The ocean has more - -buoyancy compared to fresh water
-The three overall benefits of the buddy system are practicality, safety, and
fun. True or False - -True
-The primary considerations when choosing any piece of scuba gear are:
a. suitability
b. brand
c. fit
d. comfort - -suitability, fit, and comfort
-I'm planning to dive the following week and am checking my gear. I put my
kit together and notice that my regulator seems to breathe harder than I
remember. The appropriate action would be to:
a. Have it inspected and serviced as needed by a professional before using it
b. Go ahead and use it, but limit my dive depth to 10metres/33feet
c. Wash it in fresh water and see if the problem persists - -have it inspected
and serviced as needed by a professional before using it
-There is no way to use a DIN regulator on a yoke cylinder valve. True/False
- -False
-It is important to master buoyancy control because it allows me to control
whether I descend, float or am neutrally buoyant. I adjust my buoyancy
frequently while diving. True/False - -True
-I take a colorful fish identification slate with me while diving. Looking at the
slate underwater at 12metres/40feet, I would expect the slate to look
a. smaller/farther away
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