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287 Cards in this Set
- Front
- Back
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state the 6 elements of energy |
chemical, mechanical, electrical, radiant, nuclear, heat. Dive Man, pg. 2-4 |
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1 ATA = ______________ psi |
1 ATA = 14.7 psi. 1 Foot of water sea water = .445 psi Dive Man, Pg 2-12 |
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Archimede's Principle |
Any object wholly or partly immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object. Dive Man, Pg 2-13 |
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Boyles Law |
at constant temperature, the absolute pressureand the volume of gas are inversely proportional. As pressure increases the gasvolume is reduced; as the pressure is reduced the gas volume increases. Dive Man, Pg 2-17 |
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Charles'?gay-Lussac's Law |
at a constant pressure, the volume of a gas is directly proportionalto the change in the absolute temperature. Dive Man, Pg 2-18 |
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Dalton's Law |
The total pressure exerted by a mixture of gases is equal to the sum of the pressures of each of the different gases making up the mixture, with each gas acting as if it alone was present and occupied the total volume. Dive Man, Pg 2-24 |
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Henry's Law |
The amount of any given gas that will dissolve in a liquid at a given temperature is directly proportional to the partial pressure of that gas. Dive Man, pg 2-29 |
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The average human body contains _________ liters of blood? |
approx. 5 liters Dive Man, Pg 3-3 |
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What carries oxygen throughout the circulator system? |
Hemoglobin on red blood cells. Dive Man, pg 3-4 |
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State the 6 phases of respiration |
1. Vent lungs with fresh air. 2. Exchange of gas b/w blood and air in lungs. 3. Transport of gases by blood. 4. Exchange of gases b/w blood and tissue fluids. 5. Exchange of gases b/w tissue fluids and cells. 6. Use and production of gases by cells. Dive Man, pg 3.5 |
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Respirator Rate for adult at rest |
approx. 12-16 breaths per min Dive Man, pg 3-8 |
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Total Lung Capacity |
The total volume of air that the lungs can hold at full capacity. Approx. 5-6 liters of air. Dive Man, pg 3-8 |
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Respiratory Cycle is defined as |
one complete breath of inspiration and exhalation including any pauses b/w. Dive Man, Pg 3-8 |
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Respirator Minute Volume |
The total amount of air moved in or out of the lungs in 1 minute. It is calculated by multiplying the tidal volume by the respiratory rate. It's approx. 6-10 liters/min at rest and can be over 100 liters/min during server work. Dive Man, pg 3-9 |
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Tidal Volume |
The amount of air moved in or out of the lungs during a single normal resipratory cycle. Approx. 1/2 liter for an adult at rest. Can be over 3 liters during sever work. Dive Man, 3-8 |
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What chart from the Dive Manual do we use to calculate "planned" RMV during dive planning? How do we read this chart? |
Figure 3-6. O2 consumption and RMV at different work rates. You enter the chart at the planned workload. You get the RMV in ( x.x) by the work rate. Dive Man, 3-12 |
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Define Hypoxia. What % do we usually see the onset of hypoxic Sx (symptoms) |
an abnormal deficiency of O2 in the arterial blood. 16% or 0.16 ata. Dive Man, pg 3-12 |
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State 5 causes of hypoxia |
improper purge of closed-circuit UBA's, improper line up of breathing gases, failure of O2 addition valve in MK-16, blockage of air passages by vomit/water/other foreign objects, CO poisioning, breathholding Dive Man, pg 3-13 |
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Sx of hypoxia |
loss of judgement, lack of concentration, lack of muscle control, inability to perform delice or skill-requiring tasks, drowsiness, weakness, agitation, euphoria, loss of consciousness. Dive man, pg 3-13 |
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Tx (treatment) of hypoxia |
100% Dive Man, pg 3-14 |
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Define Hypercapnia |
an abnormally high level of carbon dioxide in the blood and body tissues Dive man, pg 3-15 |
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Causes of Hypercapnia |
inadequate ventilation of SS dive helments, over breathing the rigs, failure of CO2 scrubber in re-breathers Dive man, pg 3-15 |
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Sx of hypercapnia |
increased breathing, shortness of breath, confusion or feeling euphoric, inability to concentrate, sweating, drowsiness, headache, unconsciousness, convulsions Dive Man, pg 3-16 |
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Tx of Hypercapnia |
Purge the rig or vent, fresh air, 100% O2 Dive man, pg 3-17 |
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Why does someone with hypercapnia or hypoxia have increased breathing? |
Thier body is trying to compensate the low level of O2 in the system by inhaling more air. -Deep Sea OJT |
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Excessive CO2 dilates the arteries of the brain; this increased blood flow to the brain. This explains why excessive CO2 in the body speeds up the onset of ___ _______ _________. |
CNS Oxygen Toxicity Dive Man, pg 3-17 |
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Define "Near Drowing" |
When a drowning victum is successfully resucitated. Dive Man, Pg 3-18 |
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Explain how the onset of hypoxia occurs during breathold diving. |
Air in the lungs is compressed during descent, raising theoxygen partial pressure. The increased ppO2 readily satisfies the body's oxygen demand during descent and while on the bottom, even though a portion is beingconsumed by the body. During ascent,the partial pressure of the remaining oxygenis reduced rapidly as the hydrostatic pressure on the body lessens. Dive Man, pg 3-20 |
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What is the primary cause of CO poisoning? |
A compressors intake being too close to the exhuast of an internal combution engine or a malfunction of a oil lubricated compressor. Dive Man, pg 3-21 |
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CO Sx's |
Headache, dizziness, confusion, nausea, vomiting, tightness across the forehead. Dive man, Pg 3-22 |
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During which phase of a dive are CO sx's commonly noticed? Why? |
During the start of ascent. The PPO2 is reduced allowing the concentrated % of CO to become more effective. Dive Man, pg 3-22 |
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What is the TX for cases of sever CO poisoning? |
TT6 Dive Man, pg 3-22 |
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What are sever Sx's of CO poisoning? |
severe headache, mental status changes, neurological Sx's, rapid heart rate. DIve Man, Pg 3-22 |
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State the prerequisites for a Squeeze |
Gas Filled Space, Rigid Tissue Walls, Ambient Pressure Change, Venous Penetration forcing blood into space, Enclosed gas-filled space G-R-A-V-E Dive Man, pg 3-23 |
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Most common squeeze? |
Middle Ear Squeeze Dive Man, pg 3-24 |
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Hallmark Sx of middle ear squeeze and immediate Tx |
sharp pain in eardrum stop & ascend a few feet usually brings immediate relief Dive Man, pg 3-24 |
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TX of middle ear squeeze (post dive) |
decongestants, pain meds & medical evaluation. Probably consultation at ENT. Dive Man, 3-25 |
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Prior to any dental work what shoud divers do? Why? |
Notify the Dentis that they are actively on a DIVING STATUS. Dentis can pay extra care to fillings and decaying teeth and take preventitive measures to ensure no extra air can get traped in tooth canals and/or under fillings; which would lead to a tooth squeeze and possible "blowing out/off" of fillings. DIve Man, pg 3-26 |
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Damage to which inner ear organ causes tinnitus? |
Damage to the cochlea (sense of hearing) results in hearing loss and ringing in the ears (tinnitus). DIve Man, pg 3-27 |
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What 3 bones are found in the middle ear? |
malleus, incus and stapes (hammer, anvil and stirrup) Dive Man, pg 3-27 |
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What fluid is found in the middle ear? |
Cerebrospinal Fluid DIve Man, pg 3-27 |
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What are the 2 primary Sx's of Inner Ear Barotrauma (IEB)? |
persisten vertigo & hearing loss Dive Man, pg 3-28 |
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When a IEB is confirmed what other visual Sx's often accompany? |
Nystagmus (rapid movement of the eyes) Dive Man, pg 3-29 |
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State 2 post-dive situations that can abruptly onset the Sx's of IEB from a damaged inner ear round window. |
Lifting heavy weights or a bowel movement Dive Man, pg 3-29 |
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For divers with confirmed IEB, what precaution should a Chamber Sup and Inside Tender take for recompression operations? |
Ensure the BIBS mask doesn't have excessive positive or negative pressure during O2 periods. (an injured diver will have a hard time i.e. very painful....... drawing a breath since his ear bones/organs will flex and relax during normal breathing) Dive Man, pg 3-29 |
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What's an easy way to test/rule out for IEB? |
Abruptly move the suspected divers head. (sit him in a chair and have him put his head b/w his legs; if his pukes, resists or screams it's probably IEB) Deep Sea OJT |
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State the different POIS's |
AGE, Pneumothorax (simple/tension), Mediastinal Emphysema, Subcutaneous emphysema Dive Man, Pg 3-32 |
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What are the 2 main causes of alveolar rupture? |
Excessive pressure inside the lung caused by positive pressure & failure of expanding gas to escape from the lungs during ascent. Dive Man, pg 3-32 |
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10 Sx of AGE |
Unconsciousness, Paralysis, Numbness, Weakness, Extreme Fatigure, large areas of paresthesias, difficulty thinking, vertigo, convulsions, vision abnormalties, loss of coordination, loss of bodily functions. **anything tested during a neuro** Dive Man, pg 3-34 |
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Tx of AGE |
basic 1st aid, 100% O2, immediate recompression to 60 fsw -> on O2 @60'. **don't say TT6. This is not the immediate Tx for AGE. You have to see how the Px responds on O2 @60' before you can follow a TT6** Dive Man, pg 3-35 |
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Dv experiences mild to moderate pain (tightness) under the breastbone after his ascent. What is your diagnosis? |
Mediastinal Emphysema Dive Man, pg 3-36 |
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Dv experiences mild to moderate pain (tightness) under his breast bone during his ascent and upon surfacing has a noticable voice change. What is your diagnosis? |
Subcutaneous Emphysema Dive man, pg 3-36 |
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TX of mediastinal/sub"q" emphysema |
100% surface O2 Possible shallow (5-10 ft) recompression as prescribed by DMO after a pneumothorax has been ruled out Dive Man, pg 3-37 |
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DV has shortness of breath, increased resiprations, guarding one side of his chest What is your diagnosis? Treatment? Further considerations? |
Pneumothorax 100% O2 & observation of vitals. If not improving needle "D" plural area to relieve pressure buildup in chest cavity. Dive Man, pg 3-39 |
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common onset depth of nitrogen narcosis |
99 fsw or 4 ata's Dive Man, pg 3-40 |
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acronym for CNS O2 Toxicity Sx's |
VENTID-C Dive Man, Pg 3-44 |
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Pulmonary O2 Toxicity Sx's |
dry coughing, increased short respirations Dive Man, pg 3-42 |
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Why must particular care must be taken when administering 100% O2 to unconcious Px's on TT's 4, 7 or 8? |
You can induce permanent lung damage and/or pneumonia since they can't feel the initial onset of "pain" from the toxicity. Dive Man, pg 3-42 |
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At what ata's does CNS O2 Toxicity commonly occur? |
1.3 ata wet 2.4 ata dry Dive Man, pg 3-42 |
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State the factors that increase the risk of CNS O2 Toxicity |
Individual Suceptibilty, CO2 Retention, Exercise, Immersion in Water, Depth Dive Man, pg 3-43 |
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Explain the "off-effect" |
After O2 breathing is interupted a high % of O2 remains in the body/tissues. This high % of O2 can still induce O2 toxicity Sx's/Convulsions. Observe Px's for 1-2 minutes after "off-O2" Dive Man, pg 3-44 -Deep Sea OJT |
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TX of 1st CNS O2 Sx's in chamber (non convulsion) |
-Off O2 -Wait for Sx's to subside. Wait additional :15 -Back on O2 at point of interruption Dive Man, pg 17-26 |
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TX of CNS O2 Sx's in chamber (convulsive) |
-Off O2 -Protect Px from mechanical injury -wait until Px is relaxed and breathing normally -Take Vitals -Ascend 10 fsw @ 1 fpm -Contact DMO Dive Man, pg 17-27 |
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What gases can cause DCS |
nitrogen or helium Dive Man, pg 3-46 |
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Explain the direct bubble effect |
the built up bubble formation can put pressure on nerve endings, stretch and tear tissues and apply pressure on blood flow thus slowing it down. Bubbles can also completely block veins from draining to various organs. Direct Bubble effects often occur in short periods of time (minutes to hours). Dive Man, pg 3-50 |
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Explain the Indirect Bubble Effect |
The body's immune system see's the bubble formation in the tissues as a foreign object and send white blood cells to "fight" it. Indirect Bubble Effect Sx's take a longer period of time to onset. This is why after a successful Tx a DV might still have swollen lyphnodes. Dive Man, Pg 3-51 |
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DCS Type 1 SX's |
Pain in Joints Musculoskeletal Skin Sx's Dive Man, Pg 3-51 |
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DCS Type 2 SX's |
Neurological Respiratory (chokes) Circulatory (staggers) Dive Man, pg 3-51 |
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Why do most Sup's wait :10 post-surfacing to announce "on the side, last set of divers clean?" |
It "normally" takes :10 for red blood cells to leave the heart, travel throughout the body and return in a military aged, healthy adult. -Deep Sea OJT |
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State 3 ways we can prevent DCS from occuring. |
Follow proper Tables Weekly/Monthly/Quarterly Training Physical Training & Work up dives for deep dives -Deep Sea OJT |
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SX's of HYPOthermia |
Mild: shivering, slurred speech, imbalance, poor judgement Severe: loss of shivering, impaired mental status, irregular heartbeat, shallow pulse/respirations Dive Man, pg 3-54 |
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State the different types of rewarming and give an example of each |
Passive: Remove wet clothing and place NEAR a heat source Active: Place INSIDE a heat source. Ex. Shower, on top of a engine DIve Man, pg 3-54 |
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What common depth are HPNS Sx's noticed |
400-500 fsw Dive Man, pg 3-58 |
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What term describes joint pain during compression (descent) of deep dives? |
Comression Arthralgia Dive Man, pg 3-58 |
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What is Immersion diuresis? |
An increase in urination under water Dive Man, Pg 3-59 |
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What is imeesrion pulmonary edema? |
Fluid leakage into the lung tissues caused by over-hydrating prior to a dive. **the pressure of the depth literally squeeze excess fluid into tissues** -Dive Man, pg 3-60 -Deep Sea OJT |
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What is Carotid Sinus Reflex? |
When you wear a wet suit or neck dam that is so tight it causes a decrease in your heart rate that can lead to unconciousness. Dive Man, Pg 3-60 |
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What is Otitis Externa? |
Swimmers Ear Dive Man, pg 3-62 |
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State the hierarchy of maintenance procedure documentation |
PMS/MRC takes #1 Preference Military O&M manual (Topside tech Notes/Process Instructions) Manufacturer Tech Manual Dive Man, pg 4-2 |
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State the different SCA's and they systems they are responsible for
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NAVFAC: Shore Based diving & Hyperbaric Systems Dive Man, pg 4-3 |
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Who approves OP's/EP's?
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Dive Man, pg 4-3 |
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What chapter give guidance on procuring commercial air sources that will be for military use?
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Chapter 4 Dive Man, 4-4 |
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How often are air samples taken?
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Dive Man, pg 4-9 |
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State the range on Diving System Gauges
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Dive Man, pg 4-15 |
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What "entity" governs the transportation of compressed gases?
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Dive Man, 4-15 |
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How long are Command Smooth Logs required to be kept on file?
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Dive Man, pg 5-2 |
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What minimum information is required on Command Smooth Logs?
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Dive Man, pg 5-2 |
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How long are Chamber Logs kept on file?
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Dive man, g 5-3 |
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Minimum info for chamber logs
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Dive Man, 5-3 |
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What system is used to report mishaps?
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Diveman, pg 5-7 |
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What is a FAR?
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Dive Man, pg 5-4 |
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What is the determining factor for establishing a Permissible Exposure Limit (diving near active sonar)? |
Sound Pressure Level Dive Man, Appd 1A-1 |
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At what common Sound Pressure Level (SPL) does a hooded divers visual-field shift, fogging of the face plate occur and spraying of water in the mask begin? |
As SPL increases above 215 dB Dive Man, Appd 1A-2 |
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At 200 dB what is required to be worn by divers? |
Fully protected = full wet suits with hoods. Dive Man, Appd 1A-2 |
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What is the safe operating distance from Ultrasonic Sonar? |
10 yards or greater Dive Man, Appd 1A-16 |
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What is the purpose of UWSH operations? |
Provide a permanent repair without dry-docking the ship. Dive Man, pg 6-2 |
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What condiitions must be met to perform ascent training? (not SPECWAR ascent training) |
fully qualified instructiors are present, recompression chamber is available within :05, DMT is on station and DMO is able to provide immediate response to an accident. Dive Man, pg 6-3 |
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State the 5 step ORM process |
Identify Hazards Assess hazards Make Risk Decisions Implement Controls Supervise Dive man, pg 6-7 |
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What requirememts must be met for open-ocean diving vessels? (think sea state) |
2 point moore or use of Dynamc Positioning Vesel IMO Equipment class 2 or 3. Exceptions are when diving from a platform that is moored to a pier or another vessel that is properly anchored or when the ship simply cannot moore due to depth. Diveman, pg 6-10 |
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State three negative conditions that can affect topside tenders. |
Sunburn, hypothermia, heat exhuastion, windburn Diveman, pg 6-10 |
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State the minimum clearance(s) for conducting UWSH dives. |
4' from pier for surface ships 20' from pier for carriers 6' from keel during low tide Dive man, pg 6-13 |
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What temperature defines warm water diving? |
88 degree water temp. Dive Man, pg 6-17 |
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What hydration guidelines are followed for warm water diving? |
500 ml of water or a glucose/electrolyte beverage for every hour of diving Dive Man, pg 6-17 |
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At what altitude can we dive without correcting our charts? |
300 feet above sea level Dive Man, pg 6-20 |
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WHat three independant actions must occur simultaneously to shock a diver? |
GFI must fail elec equipment diver is working must experience a ground fault The dive ends up between the ground fault and earth DIve Man, pg 6-21 |
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When divers are working within 15 feet of active Impressed Current Cathodic Protection (ICCP) system what must they wear? |
full dry/wet suit with hood and gloved Dive Man, pg 6-21 |
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What Manual shall be referenced when working with/around explosives? |
SWO-60 Dive Man, pg 6-22 |
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What device do divers wear when working on/around nuclear radiation? |
Thermal Luminescence Dosimeter Dive Man, pg 6-22 |
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What is the best "planning" procedure a Dive Sup can utilize when diving in foreign waters..... in regards to dangerous marine life? |
Contact local dive shop and ask if they've had any encounters recently. Contact other military branches operating in the area. Contact local hospitals/marine biologists in the area (if applicable, think worst case scenario 3rd world country) -Deep Sea OJT |
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What guidance is provided by the Dive Manual IRT diving in the vicinity of small civiliain boats? |
Use the civilian sport diver flag along with teh code alpha dive flag Dive Man, pg 6-22 |
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State the minimum emergency equipment required on the dive station. |
Comms 1st Aid Kit (completely stocked)***not sure what document you bounce this off of*** AED Portable O2 BVM, Bag Valve Mask Extraction Line/Strectcher/Backboard/Strop Dive Man, pg 6-24 |
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State the different levels of chambers |
1: Navy Certified withing :05 2: Navy Certified within :60 (1 hour) 3: Navy Certified within 6 hours Dive Man, pg 6-26 |
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Who can certify a NON-Navy chamber? |
A formally trained DSW Qualified Chamber Supervisor Dive Man, pg 6-26 |
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Depth Limits for SCUBA |
130fsw Normal 190fsw with OIC/CO Permission DIve Man, pg 6-27 |
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Depth Limit for Mk 20 |
60fsw Dive Man, pg 6-27 |
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Depth Limit for KM-37 |
190 FSW Normal with EGS Dive Man, pg 6-27 |
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SCUBA Depth Limit when DIVERS have less than 100 SCF of air? |
100fsw Dive Man, pg 6-58 |
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6 Restrictions of SCUBA |
1. Normal Depth 130fsw 2. Max Depth 190 fsw with OIC/CO permission 3. 100 fsw max depth when with less than 100 SCF of air 4. Standby SHALL have AT LEAST 100 SCF for dives deeper than 6p fsw 5. No D dives 6. 1 knot current max or ORM dictated tending line/floats DIve Man, pg 6-58 |
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8 items of miminum SCUBA equipment |
1. Regulators with J-Valve or Pressure Gauge 2. BC 3. Ditchable Weights/belt 4. Knife (sharp) 5. Mask 6. Fins 7. Watch 8. Depth Gauge DIve Man, pg 6-58 |
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3 Uses of SCUBA |
Shallow water searches Inspections Light repair/recovery Dive Man, pg 6-58 |
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When is a SMALL CRAFT MANDATORY IRT SCUBA Diving operations? |
1. Open-Ocean dives 2. Diving from large platforms (i.e. a barge that cannot get underway to recover a displaced diver) 3. When the diver is untended and can become displaced from the dive station DIve Man, pg 6-58 |
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State two types of environmental protection we provide surface supplied divers. |
Hot Water Heaters Dry Suits Dive Man, pg 6-30 |
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State the requirements Diving Craft must adhere to |
-Seaworthy -Live saving gear -Reliable Engines -Ample room to dress -Shelter & working area for the support crew -Safely carry support equipment -Well Trained crew Dive Man, pg 6-31 |
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State the 4 current (as of 2016) ARS class ships |
Grasp, Grapple, Safeguard & Salvor -Deep Sea |
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What should small craft used to support SCUBA diving operations must be capable of if (it) is the only craft on station? |
It must be able to quickly slip it's moore to recover displaced divers. Dive Man, pg 6-32 |
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State the MINIMUM Manning Requirement (and the positions) for -Buddy Pair SCUBA Team -SSD Operation |
SCUBA PAIR: (4) 1. Sup, 2. Diver, 3. Diver, 4. Standby Diver SSD: (5) 1. Sup, 2. Diver, 3. Standby Diver, 4. Standby Tender, 5. Console Operator DIve Man, pg 6-34 |
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What conditions must be met to deploy standby as a working diver (SSD)? |
1. SS No D dive 60fsw or shallower 2. Same job site/location 3. Red Diver deems site is safe to send standby 4. If in ballast tanks each diver shall be tended by third diver outside of the confined space(s) Dive Man, pg 6-38 |
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State the OSHA restritions for formally trained (i.e. they've been to dive school at some point in their life and have a certificate to prove it) Civilian Navy Divers IRT SCUBA Diving |
1. SCUBA diving shall not be conducted To depths deeper than 130 fsw. To depths deeper than 100 fsw or outside no-decompression limits unless arecompression chamber is available within 5 minutes of the dive location. 2. All SCUBA cylinder manifolds shall be equipped with a manual reserve (Jvalve), or an independent reserve cylinder gas supply with a separate regulator. 3. A SCUBA cylinder submersible pressure gauge shall be worn by each diver. Dive Man, pg 6-42 |
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State the OSHA restritions for formally trained (i.e. they've been to dive school at some point in their life and have a certificate to prove it) Civilian Navy Divers IRT SS AIR Diving |
1. Surface-supplied air diving shall not be conducted: To depths deeper than 190 fsw if bottom time is 30 minutes or greater. To depths deeper than 220 fsw regardless of bottom time. To depths deeper than 100 fsw or outside no-decompression limits unless arecompression chamber is available within 5 minutes of the dive location. 2. The diver shall be equipped with an emergency gas supply (come-home bottle)for all planned decompression dives regardless of depth. DIve Man, pg 6-42 |
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State the OSHA restritions for formally trained (i.e. they've been to dive school at some point in their life and have a certificate to prove it) Civilian Navy Divers IRT SS MIXED-GAS Diving |
1. Mixed gas diving shall not be conducted: To depths deeper than 220 fsw, unless a bell diving system is used. With a total in-water decompression time greater than 120 minutes 2. A recompression chamber shall be available within 5 minutes of the divelocation for all mixed gas dives. Dive Man, pg 6-42 |
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What are 5 major points of discussion when planning a dive operation? |
1. Clear, brief statement of the mission objective 2. Dominant factors that may determine mission outcome. 3. All tasks required to accomplish the mission 4. Time factors that may prevail 5. Any changes or augmentations of the dive plan Dive Man, pg 6-44 |
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What is the principle application of the MK-20? |
Diving in mud tanks and enclosed spaced Dive man, pg 6-59 |
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State the 3 MK-20 restrictions. |
1. 60fsw max depth 2. 1.5 current requires ORM and extra weight 3. Enclosed space diving requires EGS with 50-150' with and second stage regulator Dive Man, pg 6-59 |
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State the KM-37 restrictions |
1. Max Depth 190 fsw (AIR) 2. EGS required when diving deeper than 60 fsw or inside a wreck or enclosed space 3. Current - Above 1.5 knots requires extraweights 4. Enclosed space diving requires an EGS DIve Man, pg 6-60 |
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State the DP-1 restrictions |
1. Work limits: ??? Not sure what that means...... 2. Max Depth 130 fsw 3. Standby diver has MINIMUM 100 SCF cylinder for all DP-1 diving 4. Within no-decompression limits 5. Current – 1 knot maximum 6. Diving team – minimum 4 persons Dive Man, pg 6-66 |
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What does the + sign on a SCUBA cylinder mean?
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+ indicates air allowable 10% over service pressure Dive Man, Pg 7-5 |
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What are the abort pressures when diving SCUBA?
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Twins: 250 Psi Dive Man, pg 7-7 |
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State the three basic types of lifelines used in diving operations.
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Float Line Buddy Line Dive Man, Pg 7-13 |
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When using a dive computer, what is the dive computer NOT a substitute of?
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Dive Man, pg 7-14 |
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What factors are considered when calculating the duration of divers air?
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Depth capacity and abort pressure (minimum air psi) Dive man, 7-14 |
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State the SAE material standards that shall be met for SCUBA charging lines.
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SAE 100R8 for 5,000 psi Dive Man, pg 7-17 |
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At what minimum length do charging lines require strain reliefs?
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18 inches Dive Man, pg 7-17 |
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What is the required over-bottom pressure for SCUBA 1st stage regulators? When is it required to be verified?
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Dive Man, pg 7-22 |
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What requirement must be met when SCUBA divers use externally powered tools?
|
Dive man, pg 7-37 |
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State the minimum KM-37 over bottom pressures required for depths to 190 fsw
|
61-130'=135 psi 131-190'=165 psi Dive man, pg 8-4 |
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when planning surface supplied dives what acfm's are used for calculating MMP/Air consumption?
|
0.75 for ascent and decompression stops Dive man, pg 8-5 |
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IRT the MK-3 LWDS Mod 0 Each flask holds _________ scf of compressed air at ___ psi. |
3,000 psi Dive Man, pg 8-13 |
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MK3 LWDS Mod 0 Config. 1
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Secondary: one air rack assembly Dive Man, pg 8-13 |
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MK3 LWDS Mod 0 Config. 2
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Secondary: (1) air rack assembly Dive Man, 8-13 |
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MK3 LWDS Mod 0 Config. 3
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Secondary: (2) air rack assemblies Dive Man, pg 8-13 |
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MK3 LWDS Mod 1 |
Secondary: (2) air rack assemblies @ 5,000 psi Control Console Volume Tank Dive Man, pg 8-13 |
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FADS III components & total SCF of air when charged
|
- Control Console Assembly - Volume Tank 9600 scf @ 5,000 psi Dive Man, pg 8-15 |
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How are the banks on the ASRA configured?
|
Bank 2: 3 flasks Bank 3: 4 Flasks = 9 flasks Dive Man, pg 8-15 |
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What is the ORCA and what is it's use? |
Used for in-water decompression Dive man, pg 8-15 |
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What size/type of line is recommended for the Descent Line?
|
Dive man, pg 8-16 |
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What type/size line will the stage line be?
|
Dive man, pg 8-16 |
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When is a volume tank required?
|
DIve Man, pg 8-20 |
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HP air cylinders and flasks are vessels deigned to hold air at pressures over _____ psi.
|
DIve Man, pg 8-22 |
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Line Pull From Tender To Diver 1 2 3 4 2-1 3-2 4-3 |
Go down Stand by to come up Come up Talk to me VENT Circulate DIve Man, pg 8-25 |
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Line Pulls from Diver to Tender 1 2 3 4 2-1 3-2 4-3 |
Lower/Give me slack Take up slack haul me up talk to me more air less air Dive Man, pg 8-25 |
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Line Pull: Special Signals from Diver 1-2-3 5 2-1-2 |
Send me a square mark send me a line send me a slate Dive Man, pg 8-25 |
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Line Pulls Emergency Signals from Diver 2-2-2 3-3-3 4-4-4 |
I am fouled but can clear "3-3-3-me-me-me" Haul me up immediately DIve Man, pg 8-25 |
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What is the procedure prior to unhatting in a ballast tank?
|
Dive Man, pg 8-30 |
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If conditions call for use of steel cable or chain as a descent line, who must approve?
|
Diving Officer Dive Man, pg 8-33 |
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How much time to tenders have to undress their diver during Sur"D" dives?
|
Dive Man, pg 8-36 |
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What time restrictions are applied to divers upon surfacing from a normal dive?
|
Dive Man pg 8-37 |
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Define Residual Nitrogen
|
Dive Man, pg 9-3 |
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Define Residual Nitrogen Time
|
Dive Man, pg 9-3 |
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State the 6 tables used to perform air dives
|
Air Decompression Tables RNT Tables Sea Level Equivalent Tables Repet group for initial ascent to altitude Surface Interval before Ascent to altitude post dive Dive Man, pg 9-7 |
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State the Pnemo-correction factors
|
101-200 = +2 201-300 = +4 301-400 = +7 Dive man, pg 9-7 |
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What is the last water stop (depth) for in water D
|
Dive man, pg 9-8 |
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When is a diver eligible for Sur-D?
|
Dive Man, pg 9-8 |
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What depth range does the Shallow Water No-D table capture?
|
Dive Man, pg 9-9 |
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If the Air Decompression Table does NOT list a Repet Group designator what rule applies?
|
Dive Man, pg 9-11 |
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During in-water air/O2 decompression stops, -What depth do divers start breathing O2 -When does O2 time start -How long are the O2 periods -What procedure is followed after the 20fsw O2 stop |
-Once ORCA/FMGS system has deflection on regulator -:30 with :05 air breaks unless the O2 period is :35 -Divers surface on O2 Dive Man, pg 9-11 |
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Descent rate for chamber during Sur "D"
|
Dive Man, pg 9-16 |
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What is the DEEPEST depth ALL personnel in a chamber can breath O2?
|
-Deep Sea OJT |
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When can a Dive Sup elect to initiate Sur D?
|
Dive Man, pg 9-17 |
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State the procedure for an A-Sx Omitted D deeper than 30 fsw. (with chamber)
|
TT6
Dive Man, pg 9-43 |
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State the procedure for A-Sx Omitted D at 20 fsw or 30 fsw with a surface interval greater than :07 |
TT5 for 2 or fewer O2 periods in the chamber TT6 for more than 2 O2 periods in the chamber Dive Man, pg 9-43 |
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State the procedure for A-Sx Omitted D at 20 fsw or 30 fsw with a surface interval greater than :05 but less than :07 |
Increase 50' chamber O2 period from :15 to :30 (simply put: add 1/2 an O2 period @ 50') Dive Man, pg 9-43 |
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State the procedure for A-Sx Omitted D when a diver misses a in-water D stop deeper than 50 fsw. |
Compress to 165 and start TT-6A Dive Man, pg 9-43 note 4 |
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State the procedure for an A-Sx Omitted D, missing the 20 or 30 fsw stop. (with OUT chamber) |
Return to depth of stop multiply the 30 and/or 20 foot AIR OR O2 stops by 1.5. Dive Man, pg 9-43 |
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State the procedure for an A-Sx Omitted D deeper than 30 fsw. (with OUT chamber) |
Go to depth of 1st stop. Follow original schedule to 30 fsw. Shift to O2 if avil and multiply AIR & O2 stops by 1.5. Dive Man, pg 9-43 |
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What is the maximum descent rate allowed for the chamber phase of Sur "D"? |
100 fpm Dive Man, pg 9-43 note 2. |
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If :90 or greater in-water decompression time is required, who's permission is needed to conduct the dive? |
CNO Dive Man, pg 9-21 |
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Once residual nitrogen time is added to a bottom time of a reptitive dive what is obtained? |
Equivalent Single Dive Time (ESDT) Dive Man, pg 9-21 |
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|
What depths of the No D chart do not have a repet group designator? |
10, 15 & 20 fsw Dive Man, pg -23 |
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If a Repet Group is not shown in a decompression schedule, repet dives deeper than _______ are not allowed? The diver must remain on surface for at least ____ hours before diving deeper than _____ fsw. |
20 fsw 18 hours 20 fsw Dive Man, pg 9-25 |
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|
State the RNT exception rule. |
After you add two bottom times and take the deeper of two depths, you come up with a table and schedule................ This new table and schedule will produce a longer no-decompression time (the No D chart) or a shorter decompression time (Standard Air Charts). Choose the table/schedule that obligates the LEAST amount of decompression time; whether it be No D or Shorter D. Dive Man, pg 9-29 |
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|
Can we perform repetitive MK-16 dives? |
Yes. Follow the Repet Dive Procedure Dive Man, pg 9-30 |
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|
What is the "best/most efficent" way to plan Repet Dives? |
Deepest dives 1st Dive man, Pg 9-30 |
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|
What are exceptional exposure dives? |
Any Air Dives deeper than 190 fsw Any dives requiring :90 or more in-water Deco. Any SurDO2 dives with :120 (4) or more O2 time (periods) Dive Man, pg 9-31 |
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|
What are the minor variations in rate or ascent? |
20 - 40 fpm Dive Man, pg 9-31 |
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What do you (Sup) do if the diver (think umbilical/stage/console readings) ascends greater than 40 fpm? |
Stop the ascent where it's at and let the watches catch up. Dive Man, pg 9-31 |
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What does the Sup do is the diver arrives early to his 1st decompression stop (considering that the 1st stop is NOT the surface). |
-Start the 1st stop time when required time is completed on the watches. -If the 1st Stop is an O2 stop, shift and vent and start time once all divers are on O2 and required travel time is completed on the watches. Dive Man, pg 9-32 |
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What does the Sup do if there is a delay in reaching the 1st In-Water Deco stop LESS THAN :01 |
Disregard Dive Man, pg 9-32 |
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What does the Sup do when there is a delay to the 1st stop greater than :01 deeper than 50 fsw? |
Round up to the next whole minute. Add that new minute time to the bottom time and recompute the table/schedule to see if you owe deeper/longer in-water deco. Dive Man, pg 9-32 |
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What does the Sup do if there is a delay greater than :01 shallower than 50 fsw? |
Round the delay time up to the next whole minute and add that time to the divers 1st decompression stop. Dive Man, pg 9-32 |
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|
What happens when there is a delay less than :01 leaving and air stop or between air stops? |
Disregard Dive Man, pg 9-35 |
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|
If divers are leaving a 20 sw O2 stop and there is a delay, how much time can the Sup keep them on O2 before shifting to air? |
:30 max continuous O2 time Dive Man, pg 9-35 |
|
|
EP for bottom time in excess of a table (this trapped Air diver) |
-Contact NEDU if possible -Use Thalaman Algorith Dive Planner if Avail. -Find a deeper depth in the Air Decompression Tables that has a schedule that is equal to or longer than the divers current bottom time then, follow it. Dive Man, Pg 9-36 |
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|
EP for Loss of O2 in Water (In-Water Air/O2 Decompression) **Prior to Diver going on O2** as in, upon arrival and shifting stuff ain't working |
-Shift to Air -If correctable, shift to O2 and count air time as dead time, resume and fulfill O2 requirement -If not correctable, initiate Sur D or continue In-Water D on Air Dive man, pg 9-36 |
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EP for Loss of O2 in Water (In-Water Air/O2 Decompression) **After Diver(s) have already been shifted to O2** As in, during O2 period, it broke or went wrong |
-Shift back to Air -If correctable, re-vent with O2 (::20) and resume, any time on air is dead time -If cannot be corrected (chamber is available), initiate Sur"D" O2. Chamber O2 periods are found by multiplying remaining (in-water) O2 time by 1.1, divide that # by :30, then round up to next 1/2 O2 period. (1/2 O2 period = :15) -If cannot be corrected (no chamber available **this is obviously a shitty situation since pre-dive plans require chambers available) continue decompression on air in water. Compute the remaining stop time by multiplying remaining O2 stop time by the air : O2 ratio. Dive man, pg 9-37 |
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|
Contaminated O2 supply (ORCA operator misaligned the ORCA) |
-Align ORCA properly -Re-Vent each diver for ::20 -Restart O2 time Dive Man, 9-37 |
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|
CNS O2 Tox (NON-Convulsive) @ 30 or 20' in water stop. Chamber Available |
- Initiate Sur D -Shift to Air and Travel to surface -multiple remaining in-water O2 stops by 1.1, divide by :30 & round up to next highest 1/2 period Dive Man 9-38 |
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CNS O2 Tox (NON-Convulsive) @ 30' in water stop. Chamber NOT Available |
-Travel to 20', Shift to air, Vent upon arrival @ 20' **ventilate affected diver 1st** -To compute 20' stop time, multiply missed 30' time by air : O2 ratio at 30'. Add this # to the prescribed 20' stop time Dive Man 9-38 |
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CNS O2 Tox (NON-Convulsive) @ 20' in water stop. Chamber NOT Available |
-Shift to air -Vent both divers (affected diver first) -complete decompression on air -Compute remaining O2 stop time by air : oxygen ratio at 20'. Dive Man 9-38 |
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|
CNS O2 Convulsion at 30' or 20' in-water stop Sur D is available |
-Shift to air -vent unaffected diver 1st, then vent affected diver -if only affected diver in water, launch standby and direct him to vent affected diver -hold divers at depth until tonic/clonic phase is over -confirm breathing, if not, adjust his airway -travel when affected diver is stable, start Sur D -calculate remaining in-water O2 periods by 1.1, divide by :30, round up to next highest 1/2 period
Dive Man 9-39 |
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CNS O2 Convulsion at 30' or 20' in-water stop Sur D is NOT available |
-vent unaffected diver 1st, then vent affected diver -if only affected diver in water, launch standby and direct him to vent affected diver -hold divers at depth until tonic/clonic phase is over-confirm breathing, if not, adjust his airway -Complete in-water D on air -compute remaining stop time by multiplying air : O2 stop time ratio **if convulsion occurred at 30', calculate remaining time as stated above, complete 20' time as prescribed in table** Dive Man 9-39 |
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Surface Interval Greater than :05 during Sur "D" (greater than :05 but less than :07) |
-Increase O2 time @ 50' in chamber from :15 to :30 -In other words, add an extra 1/2 period to 50' stop Dive Man Pg 9-40 |
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Surface Interval Greater than :05 during Sur "D"(greater than :07) |
-Compress to 60' in chamber -Treat on TT-5 if 2 or fewer O2 periods were required -Treat on TT-6 for 2.5 or more O2 Periods were required (TT-5 for 2 or few, TT-6 for 2.5 or more) Dive Man Pg 9-40 |
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|
What procedure is used when a diver cannot reach 50' in the chamber due to equalization problems but still owes decompression? |
Safe Way Out Procedure Dive Man Pg 9-40 |
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Safe way Out procedure (20' or 30' Air/O2 stop required during in-water D) |
-Compress to deepest attainable depth in chamber -Begin O2 breathing at this depth -Gradually attempt to go to 20' or 30' if possible -Double the required Chamber O2 Periods and complete them at the divers attainable depth. -O2 time is :60 with :15 air breaks -Surface @ 30fpm -Observe on Surface for DCS -Reprt diving is NOT Allowed Dive Man, Pg 9-40 |
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|
Is Repet diving allowed following Safe-Way Out procedure? |
NO Dive Man, Pg 9-40 |
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|
DCS Type I Sx's during Surface Interval (SX's go away) |
-Delay Neuro & compress to 50' in chamber -Go on O2 and Complete Neuro -If Sx's go away during :15 stop @ 50', the SI was :05 or less and no NEURO Sx's are found........ -Add 1/2 O2 period @ 50" and continue on Dive Man Pg 9-41 |
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|
DCS Type I Sx's during Surface Interval (SX's DO NOT go away or SI was > :07) |
-Delay Neuro & compress to 50' in chamber -Go on O2 and Complete Neuro (SX's DO NOT go away or SI was > :07) -Compress to 60' WHILE ON O2 -TT-5 for 2 O2 periods or fewer -TT-6 for 2.5 O@ periods or more -Time starts upon arrival at 60 fsw (because diver is already on O2) Dive Man Pg 9-41 |
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|
DCS Type II Sx's during travel from 40fsw, during the SI ORRRRRRRR the Neuro @ 50' in chamber is abnormal (all the same treatment) |
-Compress to 60' in chamber -Treat on TT-6 -Time starts upon arrival at 60 (because diver is already on O2) Dive Man Pg 9-41 |
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|
What "defines" Surface Interval? |
Travel from 40fsw to 50' in the chamber Dive Man pg 9-41, Table 9-1 Note 1 |
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|
What 2 conditions must be met for a SX diver to follow prescribed SUR D schedule? |
1. DCS Type I Sx's must COMPLETELY resolve during 50' O2 period and 2. NEURO at 50' must be normal Dive Man Pg 9-41, Table 9-2 Note 2 |
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|
If DCS Type I Sx's do NOT completely reslove and/or the Neuro @ 50' is abnormal what is the COA (course of action)? |
Treat diver on TT-5 or 6 based on the Surface Interval Time and amount of O2 periods subscribed Dive Man, Pg 9-41, Table 9-2, Note 2 |
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|
What is the COA when DCS Type II Sx's occur during ANY part of the SI? |
TT-6 Dive Man, Pg 9-41, Table 9-2, Note 3 |
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|
What is the COA is the Neuro is ABNORMAL @ 50' in the chamber during Sur D? |
TT-6 Dive Man, Pg 9-41, Table 9-2, Note 3 |
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|
What is the COA if/when DCS Sx's (any of them) appear at the 50', 40'or 30' chamber stop during SUR D? |
Treat as recurrence of Sx's IAW Chapter 20 Dive Man, Pg 9-41 |
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|
EP for Loss of O2 during SUR D chamber phase (Permanent Loss of O2, 50/50 Available) |
-Multiply remaining O2 time by 2 -No air breaks required Dive man, pg 9-42 |
|
|
*********************EP for Loss of O2 during SUR D chamber phase (Permanent Loss of O2, 50/50 NOT Available... AIR is only available) |
************************ |
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|
CNS O2 Toxicity in Chamber (non-convulsive) |
-Off O2 -Wait for Sx to subside -Wait additional :15 (to ensure O2 affect is mimimized) -Back on O2 at Point of Interruption Dive man Pg 9-42 |
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|
CNS O2 Toxicity in Chamber (Convulsive) or recurrence of CNS O2 Sx's |
-Off O2/Protect Px best you can -Verify Px relaxed and breathing normally (bounce vital signs off initial vital signs) -Ascend 10' @ 1FPM -Back on O2 at Point of Interruption Dive Man Pg 9-42 |
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|
Immediate decision upon recurrence of CNS O2 Toxicity SX's after 10' ascent |
-Complete decompression on air Dive Man Pg 9-42 |
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|
Allocate remamining Decompression Time using AIR after O2 has been suspended due to toxicity. Px currently @ 40' Chamber |
10% remaining air time to 40' 20% to 30' 70% to 20' Dive Man Pg 9-42 |
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|
Allocate remamining Decompression Time using AIR after O2 has been suspended due to toxicity. Px currently @ 30' Chamber |
30% remaining air time to 30' 70% to 20' Dive Man Pg 9-43 |
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|
Max descent rate for SUR D |
100 fpm Dive Man Pg 9-43, Table 9-3 Note 2 |
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|
COA for SI greater than :05 but less than :07 |
add an extra O2 period (an extra :15) @ 50' in chamber Dive Man Pg 9-43, Table 9-3 Note 3 |
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|
COA If diver missed in-water D stop deeper than 50fsw (Chamber Avail) |
Immediate recompression to 165' in chamber & follow TT-6A Dive Man Pg 9-43, Table 9-3 Note 4 |
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|
COA, ASx diver with fast (greater than 30 fpm) ascent no in-water D stops prescribed (Chamber Avail) |
Observe on surface for 1 hour Dive Man Pg 9-43, Table 9-3 **DiveMan doesn't STATE to complete Neuro but it wouldn't hurt** DiveMan simply states "observe for Sx's"..... very subjective........... |
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|
COA, ASx diver misses 20fsw or 30fsw on surface for less than :01 (Chamber Avail) |
Return to dpeth of missed stop, increase total stop time by :01 Dive man Pg 9-43, Table 9-3 |
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|
COA, ASx diver missed in-water D stop deeper than 30fsw (Chamber Avail) |
TT-6 unless missed stop was deeper than 50fsw Dive Man Pg 9-43, Table 9-3 |
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Diver missed In-Water D stop at 20fsw or 30fsw; he is on surface for more than :01 and NO CHAMBER IS AVAILABLE. What is your COA? |
-Return to depth of missed stop -Complete In-Water D at 20fsw and/or 30fsw by multiplying air/O2 (whichever you elect to use) by 1.5. Dive Man, Pg 9-45 |
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Diver Omits all or part of in-water D stop at 40fsw or deeper & Chamber IS available. What is your COA? |
-Surface @ 30fpm -TT-6 (unless dive was deeper than 50fsw then initiate TT6A @ 165' in chamber) Dive Man, Pg 9-45 |
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Diver Omits all or part of in-water D stop at 40fsw or deeper & Chamber IS NOT available. What is your COA? |
-Return to depth of 1st in-water stop -Follow original in-water D schedule to 30fsw -Shift to 100% O2 (if avail) -Complete in-water D by multiplying air/O2 stops by 1.5 Dive Man, Pg 9-45 |
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|
What is "normally" the predominant Sx of decompression in the water during prolonged decompression on air/O2? |
Joint Pain Dive Man, Pg 9-45 |
|
|
When is decompression sickness most likely to appear in the water? |
-Shallow in-water D stops just prior to surfacing -In some cases, during ascent to 1st in-water D stop or shortly after arriving at 1st in-water D stop Dive Man, Pg 9-45 |
|
|
When attempting to manage in-water DCS, who's advice should be sought after? |
Diving Medical Officer Dive Man, Pg 9-45 |
|
|
What two options does the Dive Sup have when faced with in-water DCS? |
1. Keep diver in water (based on diver's feedback) 2. Surface Diver Dive Man, Pg 9-46 |
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|
When electing to keep a diver with DCS in the water, what max depth can the Dive Sup elect to have him descend to, to relieve DCS Sx's? (Diver is on O2) |
-Have Diver descend 10fsw from current depth -If Sx's are not significantly relieved, have him descend 10 fsw more NOT TO EXCEED 40 FSW (while on O2). Dive Man, Pg 9-45 |
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|
When electing to keep a diver with DCS in the water, what max time does the diver stay at in-water depth of relief? (Diver is on O2) |
:30 @ depth of relief Dive Man, Pg 9-45 |
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|
Diver with in-water DCS Sx's completes in-water D and surfaces symptom-free. What is your COA? |
-100% O2 -TT-5 **may be waived for dives in remote locations however, 99.9999999% of all dives require chamber locations and times to be identified well before the dive is conducted. The likelihood of maxing out a depth where DCS could occur during in-water D is very rare.** Dive Man, Pg 9-46 |
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|
Diver with in-water DCS Sx's completes in-water D and surfaces WITH DCS symptoms. What is your COA? |
-100% -TT-6 Dive Man, Pg 9-46 |
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|
After completing recompression treatment for a diver that had DCS Sx's during in-water D, how long must he be observed in the vicinity of the chamber facility? |
-6 hours Dive Man, Pg 9-46 |
|
|
Why do dives at altitude require MORE decompression? |
-There is a reduced atmospheric pressure on the divers. Dive Man, Pg 9-46 |
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|
What is "produced" when Dive Sups elect to use the "cross-correction" method for calculating altitude dives? What does this do? |
-Yeilds a sea level dive that is deeper than the actual dive -A deeper sea level equivalent dive provides the extra decompression needed to offset effects of diving at altitude. Dive Man, Pg 9-46 |
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|
When calculating altitude dives, two corrections must be made, what are they? |
-Actual depth of dive must be corrected to determine the sea level equivalent depth -decompression stops in the sea level equivalent depth table must be correct for use at altitude Dive Man, Pg 9-47 |
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|
What depth ranges (when diving at altitude) do not require correction? |
-0-300 above sea level -300 - 1000 above sea level for dives deeper than 145 fsw - any dives (regardless of depth) above 1000 feet sea level require correction Dive Man, Pg 9-49 |
|
|
What is the preferred measuring method for measuring depth at altitude? |
-A mechanical or electronic gauge than can be zeroed at the dive site Dive Man, Pg 9-49 |
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|
If using a recompression chamber at altitude, what must be done before conducting Sur "D"or Tx's? |
-zero chamber depth gauges once on site Dive Man, Pg 9-49 |
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|
What happens to "most" sealed depth gauges normally used by divers when used during altitude dives? What correction factor is used? |
-The read lower than actual due to the reduced atmospheric pressure on them. **they are sealed with one atmosphere in them when manufactured** -Correction factor of 1 fsw for every 1000 fsw is used to compensate Dive Man, Pg 9-49 |
|
|
True/False Pneumo correction factors are changes at altitude? |
False, Pneumo corrections are unchaged at altitude Dive Man, Pg 9-49 |
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|
What approximate time is required at altitude for equilibirum to occur in the body? |
-12 hours Dive Man, Pg 9-49 |
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|
Can you use table 9-4 (sea level equivalent depth) when diving MK-16 at altitude? |
No, they maintain a constant partial pressure. Contact NAVSEA for guidance. Dive Man, Pg 9-49 |
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|
If a diver cannot wait 12 hours prior to making a dive at altitude, what must the Dive Sup do? |
-Figure the divers rep group designator and add it to his bottom time as a repet dive. Dive Man, Pg 9-50 |
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|
Ascent to altitude after diving increases the risk of decompression sickness because ____________. |
of the additional reduction of atmospheric pressure. Dive Man, Pg 9-57 |
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|
The surface interval divers must wait prior to flying (or ascending to altitude, i.e. driving in a car over mountains) is based off of what? |
The highest repet group designator attained within the past 24 hours. Dive Man, Pg 9-57 |
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|
What tool is used to assist Dive Sups in planning surface intervals when faced with "flying after diving" situations? |
Table 9-6, Required SI before Ascent to Altitude Dive Man, Pg 9-62, Table 6-2 |
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|
If ascent above 10,000' is required, what entity provides guidance? |
NAVSEA OOC Dive Man, Pg 9-62, Table 9-6 Note 2 |
|
|
What altitude is used when calculating "flying after diving" when divers are flying in commercial aircraft? |
8,000' Dive Man, Pg 9-62, Table 9-6 Note 3 |
|
|
How long shall a diver wait to fly after diving if the dive was exceptional exposure? |
48 hour minimum Dive Man, Pg 9-62 Table 9-6 |
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|
How long shall divers wait to fly after conducting a non-saturation Helium-Oxygen No-D dive? |
12 hours Dive Man, Pg 9-62 Table 9-6 Note 5 |
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|
No D Time Limit for the following Depths 50 60 80 100 130 190 |
:92 :60 :39 :25 :10 :05 Dive Man, Pg 9-63 Table 9-7 No D Chart |
|
|
What gas mixes are used in Navy NITROX diving? |
75/25 - 60/40 Dive Man, Pg 10-1 |
|
|
#1 benefit of NITROX diving? |
Significantly increases amount of time a dive can spend at depth without having to decompress. Dive Man, Pg 10-1 |
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|
Normal Depth limit for NITROX diving? |
140 fsw Dive Man, Pg 10-1 |
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|
What topics are require (IAW Dive Man) to be trained on by a MDV prior to NITROX diving? |
1. Pulmonary & CNS O2 Toxicity 2. EAD tables and their association with air table 3. Computing EAD then figuring chamber requirements 4. Safe handling/mixing procedures Dive Man, Pg 10-7 |
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|
When civilian divers perform NAVY NITROX dives, what is required? By Whom? |
-chamber on station -OSHA Dive Man, Pg 10-7 |
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What process is required to convert a Surface Supplied Diving System to NITROX? |
-Request to NAVSEA OOC3 -Changes are made to PSOB -O2 Cleanliness standards of 1330 are maintained Dive Man, Pg 10-8 |
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EGS's supporting surface supplied systems used in NITROX diving are filled with the same breathing mixture to a ___%? |
+/-0.5% Dive Man, Pg 10-8 |
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What temperature constitues "Cold Water Diving"? |
at or below 37 degree F Dive Man, Pg 11-1 |
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What happens to compasses and batteries when diving near polar regions? |
-Magnetic compasses become usless -Battey life is shortened Dive Man, Pg 11-2 |
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What type of air is required when using SCUBA during Cold Water/Ice Diving? Why? |
-Moisture Free Air -Reduces chance of regulator freeze up Dive Man, 11-3 |
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IRT the 1st Stage (single hose) regulator, what should be kept to a minimum? |
-Surface Purging/Breathing -Reg easily freezes up on surface Dive Man, pg 11-2 |
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What can be placed on a 1st stage regulator during Ice Diving to help elimiate freeze up? |
Anti-Freeze cap filled with silicone Dive Man, Pg 11-2 |
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When diving at/below 37 dgrees F, what is required IRT equipment when diving SCUBA? (not asking about minimum equipment) |
-Redundant SCUBA systems (2 tanks, each with k-valves and approved cold water regulator) Dive Man, Pg 11-3 |
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True/False Use of CO2 actuated life preserves are authorized for Ice Diving? |
False, accidental inflation could trap diver under thick sheet of ice. Dive Man, Pg 11-3 |
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What size hole is cut for entry/exit during Ice Diving? |
6' X 3' Dive Man, pg 11-8 |
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What length is standby divers tending line during ice diving? |
Twice the length of the divers line Dive Man, Pg 11-8 |
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In the event of a diving casualty during Ice Diving Operations, when is a stricken diver allowed to be labled "DEAD". WHY? |
Once rewarmed and all resuscitation attemps have proven unsuccessful? Sever Hypothermia can mask a weak heartbeat and breathing. Dive Man, Pg 11-14 |
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What depth ranges does the Shallow Water Diving Table conver? In what incriments? |
30' - 50' in 1 foot incriments Dive Man, Pg 2A-1 |
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