QUESTIONS AND CORRECT ANSWERS
Question:
1. Problems where you convert Psig to ata
Answer:
50 Psig = 4.40 ata (50+14.7)/14.7= 4.40ata
Question:
2. Factors that affect a diver's buoyancy
Answer:
-Lung capacity -Bone Structure -Bone Weight -Body Fat -Add or remove weight -air in buoyancy comp.
-put air in dry suit -put air in lungs -vary thickness of wet suit
Question:
3. Know Partial Pressure(PP) of 02 and N2 Problems
Answer:
33 FSW (33+33)/33 = 2(.21)=.42PP02 =2(.79)=1.58PPN2
Question:
4. How fast does sound travel underwater?
Answer:
4 X faster than air
Question:
5. Kinetic Theory of Gases
Answer:
the constant motion of particles in a gas allows a gas to fill a container of any shape or size
Question:
6. 3 types of energy in diving
Answer:
-Light -Heat -Sound
Question:
7. Decompression terms
Answer:
-BT -DT -TDT -TTD -DS -MD
Question:
8. Diving Record Abbreviations
Answer:
-LS -RB
-LB -RS
-L -RS
, Question:
9. Parts of circulatory and respiratory system and how they relate to diving
Answer:
-Alveolar
-Bronchioles
-Arteries
-Veins
-Hemoglobin
Question:
10. Know symptoms/causes/treatment for CO poisoning
Answer:
Headache Pounding in the temples Nausea/Vomiting Unconsciousness
Remove patient from CO exposure 100 O2 by mask medical uma eval hyperbaric chamber therapy
Question:
11. Know symptoms/causes/treatment for Hypoxia (lack of 02 to tissues)
Answer:
.16 ata
Euphoria Lack of concentration Weakness Irritability Lack of muscle control Drowsiness Dizziness
Euphoria Agitation Loss of consciousness Cyonosys
Question:
12. Know symptoms/causes/treatment for CO2 toxicity. (Hypercapnia)
Answer:
becomes apparent at depths greater than 120fsw
Question:
13. Know what nitrogen narcosis is and the things used to compensate for it
Answer:
The narcotic affect that nitrogen has on the body at a depth(100fsw) from the nitrogen dissolving into the
tissues. Helium and workup dives are used to compensate for it.
Question:
14. Know symptoms/causes/treatment for O2 tox (CNS and Pulmonary)
Answer:
VENTID-C for CNS Vision, Ears, Nausea, Twitching/Tingling, Irritability, Dizziness, Convulsions
CBS for Pulmonary Coughing, Burning, Dyspnea
Question:
15. Anatomy of the Ear
Answer:
outer ear middle ear inner ear
Question:
16. Know the conditions for a barotrauma to occur