PADI, OPEN WATER DIVER, FINAL EXAM
REVIEW WITH CORRECT ANSWERS.
Question: If an object is neutrally buoyant in fresh water, the
same object placed into salt water would...
Correct Answer: Float
Question: 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?
Correct Answer: The balloon will get smaller and the air
inside the balloon will be more dense
Question: 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...
Correct Answer: Become half the size it was at the surface
Question: If I am not able to equalize my body air spaces, it
may be because I have...
Correct Answer: A cold, allergy or another medical problem
Question: If my ears or sinuses hurt while I am descending, it
usually means...
Correct Answer: I am feeling a squeeze and need to
equalize
Question: The best place for me to position an alternate air
source is...
Correct Answer: In the triangle area formed by my chin and
the lower corners of my rib cage
Question: Lung overexpansion injuries can be caused by...
Correct Answer: Holding my breath while scuba diving
Question: 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?
Correct Answer: 20 minutes
Question: How often should I take my scuba cylinder to be
visually inspected by my dive center?
Correct Answer: Once a year
Question: The difference between DIN valves and yoke
valves is that DIN valves...
Correct Answer: Have threaded openings to screw the
regulator into
Question: Which of the following is not part of proper care
for my scuba cylinder?
Correct Answer: Keep some air in it
Question: 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.
Correct 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
Question: When I look at things underwater they often seem
_____ than they look on the surface.
Correct Answer: Larger and/or nearer
Question: _____ travels faster in water than it does in air.
This is why you cannot easily tell where it comes from.
Correct Answer: Sound
Question: Unless there are laws that say differently, I should
stay within _____ of my dive flag.
Correct Answer: 15 m/50 ft
Question: If I work too hard and find it difficult to breathe
underwater, I should...
Correct Answer: Stop all activity and rest, holding onto
something for support if possible
Question: As I descend, my wet suit will...
Correct Answer: Compress from water pressure, and I will
lose buoyancy and warmth
Question: I know I am properly weighted for diving if I...
Correct Answer: Float at eye level while holding a normal
breath of air and with an empty BCD
Question: Choose the best answer for the signal shown from
the choices provided (Stop signal).
Correct Answer: Stop, hold it, stay there
Question: Choose the best answer for the signal shown from
the choices provided (Something is wrong signal).
Correct Answer: Something is wrong
Question: Choose the best answer for the signal shown from
the choices provided (Okay? Okay signal, version 1).
Correct Answer: Okay? Okay
Question: Choose the best answer for the signal shown from
the choices provided (Okay? Okay signal, version 2).
Correct Answer: Okay? Okay
Question: Choose the best answer for the signal shown from
the choices provided (Low on air signal).
