PADI Open Water Diver Final Exam Review
Questions and Answers
1.1) If an object is neutrally buoyant (does not sink or float) in fresh water,
the same object placed into salt water would
A sink.
B either sink or float.
C do nothing.
D float.
Answer D
2.2) I blow up a balloon, tie it off, and take it to the bottom of the
swimming pool. What will happen to the balloon and the air inside it?
A The balloon will get bigger and the air inside the balloon will be less dense
(molecules move further apart).
B The balloon will get smaller and the air inside the balloon will be more
dense (molecules move closer together).
C The balloon will get bigger and the air inside the balloon will be more dens
D The balloon will get smaller and the air inside the balloon will be less
dense.
Answer B
3.3) I turn a glass upside down, trap the air in it by putting it in water, and
,then I take the glass down to 10 meters. The air space would
A become half the size it was at the surface.
B not change in size.
C become 1/3 the size it was at the surface.
D become 2/3 the size it was at the surface.
Answer A
4.4) If I am not able to equalize (clear) my body air spaces, it may be
because I have
A seasickness.
B heart disease and high blood pressure.
C a cold, allergy or another medical problem.
D anxiety.
Answer C
5.5) If my ears or sinuses hurt while I am descending (going down), it
usually means
A my air spaces are equalized.
B my mask strap is too tight.
C I am feeling a squeeze and need to equalize.
D my mask is too small.
Answer C
, 6.6) The best place for me to position an alternate air source is
A loose by my side so I can find it fast.
B in the triangle area formed by my chin and the lower corners of my rib cage
C to the base of my cylinder.
D to the back of my BCD between my shoulder blades and waist.
Answer B
7.7) Lung overexpansion injuries can be caused by
A scuba diving without a buddy.
B continuing a dive when not properly weighted.
C not drinking enough water before scuba diving.
D holding my breath while scuba diving.
Answer D
8.8) If my cylinder of air lasts 60 minutes while I am at the surface
breathing normally, assuming all else is the same, how long will it last at 20
meters breathing normally?
A 60 minutes
B 20 minutes
C 15 minutes
D 12 minutes
Answer B
Questions and Answers
1.1) If an object is neutrally buoyant (does not sink or float) in fresh water,
the same object placed into salt water would
A sink.
B either sink or float.
C do nothing.
D float.
Answer D
2.2) I blow up a balloon, tie it off, and take it to the bottom of the
swimming pool. What will happen to the balloon and the air inside it?
A The balloon will get bigger and the air inside the balloon will be less dense
(molecules move further apart).
B The balloon will get smaller and the air inside the balloon will be more
dense (molecules move closer together).
C The balloon will get bigger and the air inside the balloon will be more dens
D The balloon will get smaller and the air inside the balloon will be less
dense.
Answer B
3.3) I turn a glass upside down, trap the air in it by putting it in water, and
,then I take the glass down to 10 meters. The air space would
A become half the size it was at the surface.
B not change in size.
C become 1/3 the size it was at the surface.
D become 2/3 the size it was at the surface.
Answer A
4.4) If I am not able to equalize (clear) my body air spaces, it may be
because I have
A seasickness.
B heart disease and high blood pressure.
C a cold, allergy or another medical problem.
D anxiety.
Answer C
5.5) If my ears or sinuses hurt while I am descending (going down), it
usually means
A my air spaces are equalized.
B my mask strap is too tight.
C I am feeling a squeeze and need to equalize.
D my mask is too small.
Answer C
, 6.6) The best place for me to position an alternate air source is
A loose by my side so I can find it fast.
B in the triangle area formed by my chin and the lower corners of my rib cage
C to the base of my cylinder.
D to the back of my BCD between my shoulder blades and waist.
Answer B
7.7) Lung overexpansion injuries can be caused by
A scuba diving without a buddy.
B continuing a dive when not properly weighted.
C not drinking enough water before scuba diving.
D holding my breath while scuba diving.
Answer D
8.8) If my cylinder of air lasts 60 minutes while I am at the surface
breathing normally, assuming all else is the same, how long will it last at 20
meters breathing normally?
A 60 minutes
B 20 minutes
C 15 minutes
D 12 minutes
Answer B
