PADI OPEN WATER DIVER FINAL STUDY
GUIDE 2026 TESTED ANSWERS GRADED A+
⩥ 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?
Answer: The balloon will get smaller and the air inside the balloon will
be more dense
⩥ 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 m/33 ft. The air space would...
Answer: Become half the size it was at the surface
⩥ If I am not able to equalize my body air spaces, it may be because I
have...
Answer: A cold, allergy or another medical problem
⩥ If my ears or sinuses hurt while I am descending, it usually means...
Answer: I am feeling a squeeze and need to equalize
⩥ The best place for me to position an alternate air source is...
Answer: In the triangle area formed by my chin and the lower corners of
my rib cage
, ⩥ Lung overexpansion injuries can be caused by...
Answer: Holding my breath while scuba diving
⩥ 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 m/66 ft breathing normally?
Answer: 20 minutes
⩥ How often should I take my scuba cylinder to be visually inspected by
my dive center?
Answer: Once a year
⩥ The difference between DIN values and yoke valves is that DIN
valves...
Answer: Have threaded openings to screw the regulator into
⩥ Which of the following is not part of proper care for my scuba
cylinder?
Answer: Keep some air in it
⩥ Refer to the regulator picture on the right. Each regulator part has a
number next to it. Please choose the correct numeric order from the
choices below
GUIDE 2026 TESTED ANSWERS GRADED A+
⩥ 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?
Answer: The balloon will get smaller and the air inside the balloon will
be more dense
⩥ 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 m/33 ft. The air space would...
Answer: Become half the size it was at the surface
⩥ If I am not able to equalize my body air spaces, it may be because I
have...
Answer: A cold, allergy or another medical problem
⩥ If my ears or sinuses hurt while I am descending, it usually means...
Answer: I am feeling a squeeze and need to equalize
⩥ The best place for me to position an alternate air source is...
Answer: In the triangle area formed by my chin and the lower corners of
my rib cage
, ⩥ Lung overexpansion injuries can be caused by...
Answer: Holding my breath while scuba diving
⩥ 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 m/66 ft breathing normally?
Answer: 20 minutes
⩥ How often should I take my scuba cylinder to be visually inspected by
my dive center?
Answer: Once a year
⩥ The difference between DIN values and yoke valves is that DIN
valves...
Answer: Have threaded openings to screw the regulator into
⩥ Which of the following is not part of proper care for my scuba
cylinder?
Answer: Keep some air in it
⩥ Refer to the regulator picture on the right. Each regulator part has a
number next to it. Please choose the correct numeric order from the
choices below
