Open Water Course Final Exam A Questions with Correct Answers Verified by
Experts| Latest Update
To prevent breathing contaminated air (bad air): - Have tanks filled at a dive center you
trust.
- Do not use air that tastes or smells bad.
- Do not use a compressor designed to fill car tires to fill your scuba tank.
Divers who act foolishly at depth may start acting normal again if they: Ascend (go up) to a
shallower depth.
You are likely to increase the risk of decompression sickness (DCS - nitrogen bubbles blocking
blood circulation/flow in your body after a dive) if: You are tired, cold, sick, thirsty or
overweight.
If you think you have decompression sickness (DCS - nitrogen bubbles blocking blood
circulation/flow in your body after a dive) you should: Breathe 100 percent oxygen and
contact emergency medical care.
The first step in using your dive computer is Reading the manufacturer's instructions.
When planning a dive with a computer, you use the "plan" or "NDL scroll" mode (or other name
thr manufacturer uses) to determine The no decompression limits for depth (typically in 3
meters/10 feet increments).
When making computer assisted dives Each diver needs an individual computer.
It's important that you not turn off a dive computer between dives because It would lose
memory of the previous dive and not calculate repetitive dives correctly.
, If you accidentally exceed your computers no stop limits Decompress according to the
omputer's instructions.
If you're diving in cold water or under strenuous conditions Add an extra safety margin and
stay well within your computer's limits.
If your computer fails during a dive, use your backup computer to continue the dive. If you're
not wearing a backup, you should Ascend, make a safety stop and end the dive.
You make two dives in one day and are flying home on a commercial plane. You should wait
until your computer says you can fly or ..... hours, whichever is longer. 48
As a new PADI Open Water Diver, the recommended maximum depth is 18 meters/60 feet
When diving at an altitude above 300 meters/1000 feet - You need to follow special
procedures.
- You may need to set your computer for the altitude.
- Your computer may set itself for the altitude automatically.
If an object is neutrally bouyant (does not sink or float) in fresh water; the same object placed
into salt water would: Float.
Imagine you 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? The balloon will get smaller and the air
inside the balloon will be more dense (molecules move closer together).
Imagine you turn a glass upside down, trap the air in it by putting it in water, and then you take
the glass down to 10 meters/33 feet. What would happen to the air space in the glass? The
air space would become half the size it was at the surface.
Experts| Latest Update
To prevent breathing contaminated air (bad air): - Have tanks filled at a dive center you
trust.
- Do not use air that tastes or smells bad.
- Do not use a compressor designed to fill car tires to fill your scuba tank.
Divers who act foolishly at depth may start acting normal again if they: Ascend (go up) to a
shallower depth.
You are likely to increase the risk of decompression sickness (DCS - nitrogen bubbles blocking
blood circulation/flow in your body after a dive) if: You are tired, cold, sick, thirsty or
overweight.
If you think you have decompression sickness (DCS - nitrogen bubbles blocking blood
circulation/flow in your body after a dive) you should: Breathe 100 percent oxygen and
contact emergency medical care.
The first step in using your dive computer is Reading the manufacturer's instructions.
When planning a dive with a computer, you use the "plan" or "NDL scroll" mode (or other name
thr manufacturer uses) to determine The no decompression limits for depth (typically in 3
meters/10 feet increments).
When making computer assisted dives Each diver needs an individual computer.
It's important that you not turn off a dive computer between dives because It would lose
memory of the previous dive and not calculate repetitive dives correctly.
, If you accidentally exceed your computers no stop limits Decompress according to the
omputer's instructions.
If you're diving in cold water or under strenuous conditions Add an extra safety margin and
stay well within your computer's limits.
If your computer fails during a dive, use your backup computer to continue the dive. If you're
not wearing a backup, you should Ascend, make a safety stop and end the dive.
You make two dives in one day and are flying home on a commercial plane. You should wait
until your computer says you can fly or ..... hours, whichever is longer. 48
As a new PADI Open Water Diver, the recommended maximum depth is 18 meters/60 feet
When diving at an altitude above 300 meters/1000 feet - You need to follow special
procedures.
- You may need to set your computer for the altitude.
- Your computer may set itself for the altitude automatically.
If an object is neutrally bouyant (does not sink or float) in fresh water; the same object placed
into salt water would: Float.
Imagine you 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? The balloon will get smaller and the air
inside the balloon will be more dense (molecules move closer together).
Imagine you turn a glass upside down, trap the air in it by putting it in water, and then you take
the glass down to 10 meters/33 feet. What would happen to the air space in the glass? The
air space would become half the size it was at the surface.
