PADI OPEN WATER DIVE COURSE FINAL EXAM A
Questions and Answers
1.If an object is neutrally buoyant (does not sink or float) in fresh water,
the same object placed into salt water would
Answer float
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?
Answer The balloon will get smaller and the air inside the balloon will be
more dense (molecules move closer together)
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 m/33 ft. The air space would...
Answer become half the size it was at the surface
4.If I am not able to equalize (clear) my body air spaces, it may be because
I have
Answer a cold, allergy or another medical problem
5.If my ears or sinuses hurt while I am descending (going down), it
usually means...
Answer I am feeling a squeeze and need to clear
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10
, 6.The best place for me to position an alternate air source is...
Answer in the triangle are formed by my chin and the lower corners of
my rib cage
7.Lung overexpansion injuries can be caused by
Answer Holding my breath while scuba diving
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 m/66 ft breathing normally?
Answer 20 minutes
9.How often should I take my scuba cylinder to be visually inspected by
my dive center?
Answer Once a year
10.The difference between DIN valves and yoke valves is that DIN valves
Answer have threaded openings to screw the regulator into
11.Which of the following is part of proper care for my scuba cylinder?
Answer Keep some air in it
12.Look at the regulator picture. Each regulator part has a number next to
it. Write the number of the part next to its name
Answer Number 4 low pressure inflator hose for the BCD
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10
Questions and Answers
1.If an object is neutrally buoyant (does not sink or float) in fresh water,
the same object placed into salt water would
Answer float
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?
Answer The balloon will get smaller and the air inside the balloon will be
more dense (molecules move closer together)
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 m/33 ft. The air space would...
Answer become half the size it was at the surface
4.If I am not able to equalize (clear) my body air spaces, it may be because
I have
Answer a cold, allergy or another medical problem
5.If my ears or sinuses hurt while I am descending (going down), it
usually means...
Answer I am feeling a squeeze and need to clear
1/
10
, 6.The best place for me to position an alternate air source is...
Answer in the triangle are formed by my chin and the lower corners of
my rib cage
7.Lung overexpansion injuries can be caused by
Answer Holding my breath while scuba diving
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 m/66 ft breathing normally?
Answer 20 minutes
9.How often should I take my scuba cylinder to be visually inspected by
my dive center?
Answer Once a year
10.The difference between DIN valves and yoke valves is that DIN valves
Answer have threaded openings to screw the regulator into
11.Which of the following is part of proper care for my scuba cylinder?
Answer Keep some air in it
12.Look at the regulator picture. Each regulator part has a number next to
it. Write the number of the part next to its name
Answer Number 4 low pressure inflator hose for the BCD
2/
10
