PADI OPEN WATER DIVER CERTIFICATION TEST
BANK 2026 QUESTIONS WITH CORRECT
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. Answer: 1. Regulator first stage, 2. regulator second
stage, 3. alternate air source second stage, 4. low pressure inflator hose
for the BCD, 5. instrument console/gauges/computer
◉ When I look at things underwater they often seem _____ than they
look on the surface. Answer: Larger and/or nearer
BANK 2026 QUESTIONS WITH CORRECT
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. Answer: 1. Regulator first stage, 2. regulator second
stage, 3. alternate air source second stage, 4. low pressure inflator hose
for the BCD, 5. instrument console/gauges/computer
◉ When I look at things underwater they often seem _____ than they
look on the surface. Answer: Larger and/or nearer
