Basic Scuba Knowledge

How buffed up are you on your basic scuba knowledge, anyway? Computers are great and having hi-tech dive equipment is awesome...but it is only as good as the diver behind it all. Do you have IT?

You may just be interested in diving or may have had Jacques Cousteau himself sign your divelog...either way here are some basic questions from the open water diver course.

1. What is your age?
Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
2. What is your gender?
Male
Female
3. Colors fade underwater. What color goes first?
Blue
Purple
Green
Red
Yellow
4. How fast does sound travel underwater?
5 times slower than in air
25 times faster than in air
4 times faster than in air
25 times slower than in air
300 feet per second
5. How does water affect your body's heat?
loss is 5 times slower in water
loss is 25 times faster in water
loss is 4 time slower in water
loss is 25% slower in water
loss is twice as fast in water
6. What is the absolute pressure at 66 feet of salt water?
14.7 psi
2 bar
4 bar
44.1 psi
58.8 psi
7. What is nitrogen narcosis also known as?
the bends
overexpansion injury
oxygen toxicity
enriched air nitrox
rapture of the deep
8. Holding your breath during ascent can cause...
nitrogen narcosis
overexpansion injury
oxygen toxicity
enriched air nitrox
decompression sickness
9. A high partial pressure of nitrogen can cause...
nitrogen narcosis
overexpansion injury
oxygen toxicity
enriched air nitrox
decompression sickness
10. You can avoid decompression sickness by...
never holding your breath on ascent
making a safety stop at 15 feet for 3-5 minutes
monitoring your air supply
making a slow, controlled ascent
both 1 and 3
both 2 and 4
11. What is the maximum recreational diving limit?
60 feet
100 feet
130 feet
220 feet
250 feet
12. Decompression Illness covers
overexpansion injuries and decompression sickness
decompression sickness and nitrogen narcosis
overexpandion injuries and nitrogen narcosis
oxygen toxcitiy and overexpansion injuries
13. First aid for all decompression illnesses is:
immediate recompression in a chamber
asprin
hydration and rest
100% oxygen
treatment for shock

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