AAUS Test Review

1. AAUS Test Review For Scubanauts International

2. Here’s what to do: • Get out a piece of paper and something to write with • Make a heading of each section : • Dive equipment • Diving physics • Diving physiology • Diving environment • Dive planning and execution • Diving skills • Emergency skills • SNI diving program Record your answers and check them at the end of the presentation. If you get some wrong, try again!

3. Dive Equipment Section 1

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8. 5. *According to the Department of Transporation (DOT)

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14. Diving Physics Section 2

15. 1.

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18. 4.

19. 5. • 1% carbon dioxide • .934% inert gas

20. 6. • 75 psi/min

21. 7. • 37 min

22. 8. • 15

23. 9. • 3.0 ATA

24. 10. • 3.87 liters

25. 11. • 4

26. 12. • Partial pressure

27. 13. • orange

28. Diving Physiology Section 3

29. 1. Breathing dry air, a scuba diver tends to become dehydrated while diving due to: Excessive persperation Moisturizing dry inhaled air Saltwater absorbing moisture from skin Extreme energy expended during a dive

30. 2. Symptoms of nitrogen narcosis are similar to: Caisson’s disease asphyxia Diver’s disease Alcoholic intoxication

31. 3. Pressure in the middle ear is equalized through a part of the body called the: Vascular canal Intravascular tube Eustachian tube Semi-circular canal

32. 4. If your dive buddy complains about having aching pain in his shoulder one hour after the dive, you might suspect: arterial gas embolism Decompression sickness Nitrogen narcosis hypothermia

33. 5. An irregular breathing pattern while diving will possibly cause: Anorexia nervosa Carbon dioxide excess asphyxia pneumothorax

34. 6. The_____ in the air you are breathing limits the time you can stay at depth. Water vapor nitrogen oxygen All of the above

35. 7. The onset of nitrogen narcosis is characterized by: A clear thought process Impairment of thought Inability of sense pleasure Increased precision in motor skill function

36. 8. Which symptom is reflective of oxygen toxicity? euphoria Muscular twitching Bright, red skin Decreased body core temperature

37. 9. Generally , for maximum efficiency, your breathing should be… than you normally breath. Slightly faster and shallower The same Slightly slower and shallower Slightly slower and deeper

38. 10. Physical damage to the body resulting from a direct change in pressure is called: edema hemorrhage thrombosis barotrauma

39. 11. Increases carbon monoxide in the blood Smoking cigarettes affects a diver in which of the following ways? Increases tolerance for exercise Lowers the number of beats per min of heart Provides greater resistance to decompression sickness

40. 12. A diver with blood and mucous in his/her mask upon surfacing will most likely have: Lung squeeze/block Ear squeeze/block Sinus squeeze/block Air embolism

41. 13. What is the maximum safe ascent rate recommended for scientific diving and required for use of the NAUI dive tables? 90 ft/min. 30 ft/min. 70 ft/min. 60 ft/min.

42. 14. Breath 100% oxygen during dives To prevent air embolism, a diver should: Decompress correctly Breathe compressed air only Breathe normally at all times during ascent and never hold his breath.

43. Diving Environment Section 4

44. 1. • Which of the following is the point at which a sudden change in water temperature occurs?

45. 2. • When waves break on shore and the backrush is funneled through a narrow opening, the condition is known as:

46. 3. • Examples of natural navigation aids divers may use during dives include:

47. 4. • _________ is the underwater movement of water caused by wave action that you will experience when diving in areas close to shore.

48. 5. • The horizontal boundary between waters of differing salinity is defined as:

49. 6. • If the water conditions are reasonable to make a beach dive, all of the following procedures are suggested except:

50. 7. • Scyphozoans, or true jellyfish, possess stinging cells within their tentacles called: