AAUS Test - Part 2
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All SNI divers (adults and 'nauts) must complete the AAUS test with a passing grade (80% or higher) to participate in SNI open water dives. Part 2 of the AAUS Test includes 56 multiple choice questions about diving physiology, diving environment, diving skills, emergency skills, and the SNI diving program. This is a TIMED CLOSED BOOK test. You have 60 minutes to complete it.
- 1.Breathing dry air, a scuba diver tends to become dehydrated while diving due to:
- A.
Excessive perspiration
- B.
Moisturizing dry inhaled air
- C.
Saltwater absorbing moisture from the skin
- D.
The extreme amount of energy expended during a dive
- 2.Pressure in the middle ear is equalized through a part of the body called the:
- A.
Vascular canal
- B.
Intravascular tube
- C.
Eustachian tube
- D.
Semi-circular canal
- 3.Symptoms of nitrogen narcosis are similar to:
- A.
Caisson's disease
- B.
Asphyxia
- C.
Diver's disease
- D.
Alcoholic intoxication
- 4.If your dive buddy complains to you about having aching pain in his/her shoulder one hour after the dive, you might suspect:
- A.
Arterial gas embolism
- B.
Decompression sickness
- C.
Nitrogen narcosis
- D.
Hypothermia
- 5.The ______________ in the air you are breathing limits the time you can stay at depth
- A.
Water vapor
- B.
Nitrogen
- C.
Oxygen
- D.
All of the above
- 6.An irregular breathing pattern (skip breathing) while diving will possibly cause:
- A.
Anorexia nervosa
- B.
Carbon dioxide excess
- C.
Asphexia
- D.
Pneumorthorax
- 7.The onset of nitrogen narcosis is characterized by:
- A.
A clear thought process
- B.
Impairment of thought
- C.
The inability to sense pleasure
- D.
Increased precision in motor skill function
- 8.Generally, for maximum efficiency, your breathing should be:
- A.
Slightly faster and shallower than you normally breathe
- B.
The same as you normally breathe
- C.
Slightly slower and shallower than you normally breathe
- D.
Slightly slower and deeper than you normally breathe
- 9.Which symptom is reflective of oxygen toxicity?
- A.
Euphoria
- B.
Convulsions
- C.
Bright, red skin
- D.
Decreased body core temperature
- 10.Physical damage to the body resulting from a direct change in pressure is called:
- A.
Edema
- B.
Hemorrhage
- C.
Thrombosis
- D.
Barotrauma
- 11.Smoking cigarettes affects a diver in which of the following ways?
- A.
Increases the level of carbon monoxide in the blood.
- B.
Increases tolerance for exercise.
- C.
Lowers of the number of beats per minute of the heart.
- D.
Provides greater resistance to decompression sickness.
- 12.A diver with blood and mucous in his/her mask upon surfacing will most likely have:
- A.
Lung squeeze/block
- B.
Ear squeeze/block
- C.
Sinus squeeze/block
- D.
Air embolism
- 13.To prevent air embolism, a diver should:
- A.
Breathe 100 percent oxygen during scuba dives.
- B.
Decompress correctly.
- C.
Breathe compressed air only.
- D.
Breathe normally at all times during ascent and never hold his/her breath.
- 14.What is the maximum safe ascent rate recommended for scientific diving and required for use of the NAUI dive tables?
- A.
90 feet per minute
- B.
30 feet per minute
- C.
70 feet per minute
- D.
60 feet per minute
- 15.Which of the following is the point at which a sudden change in water temperature occurs?
- A.
A pinnacle
- B.
A thermocline
- C.
A halocline
- D.
An upwelling
- 16.Examples of natural navigation aids divers may use during dives include:
- A.
Ripple marks in the sand.
- B.
Sun brightness/available light.
- C.
Bottom contours.
- D.
All of the above.
- 17.When waves break on shore and the backrush is funneled through a narrow opening, the condition is known as:
- A.
A feeder current
- B.
Undertow
- C.
A rip current
- D.
The Gulf Stream
- 18.__________________is the underwater movement of water caused by wave action that you will experience when diving in areas close to shore.
- A.
Surf
- B.
Tide
- C.
Tidal current
- D.
Surge
- 19.The horizontal boundary between waters of differing salinity is defined as:
- A.
A halocline
- B.
A thermocline
- C.
A thermal zone
- D.
A reverse thermocline
- 20.If the water conditions are reasonable to make a beach dive, all of the following procedures are suggested EXCEPT:
- A.
Having your buoyancy compensator partially inflated for slight positive buoyancy.
- B.
Being fully equipped.
- C.
Getting as close to the water’s edge as possible after timing the sets and lulls to match your entry with the smallest waves.
- D.
Entering the water as slowly as possible immediately after a wave breaks, getting beyond the surf zone quickly, before the next wave breaks.
- 21.Almost all injuries from aquatic life are caused by _________ action on the part of the animal.
- A.
Defensive
- B.
Offensive
- C.
Aggressive
- D.
Planned
- 22.Scyphozoans, or true jellyfish, possess stinging cells within their tentacles called ____________.
- A.
Cilia
- B.
Thorns
- C.
Barbs
- D.
Nematocysts
- 23.The distance between successive wave crests is defined as:
- A.
Wave period
- B.
Wave sets
- C.
Wave length
- D.
Swell period
- 24.The first aid for sea stings, such as those from jellyfish is:
- A.
The application of a stinging neutralizing agent.
- B.
Applying a tourniquet.
- C.
Wrapping the injured site tightly with a bandage.
- D.
To do nothing.
- 25.If you are diving wearing an exposure suit, you should _________to safely control buoyancy as you descend.
- A.
Do nothing
- B.
Add air to your buoyancy device
- C.
Let air out of your buoyancy device
- D.
Add weight to your weight belt
- 26.If it is suspected that the air in a tank is contaminated due to its smell or taste:
- A.
Do not use the tank and immediately call the dive shop that filled the tank so they can investigate the problem.
- B.
Have your buddy keep a close watch on you throughout the dive.
- C.
Immediately call the dive shop that filled the tank and check on the compressor maintenance schedule before using the tank.
- D.
Go ahead and use the tank at depths of less than 30 feet.
- 27.A thick wetsuit (e.g., 5 mm or 7 mm):
- A.
Will require more weight to be neutral near the surface, and more air in the buoyancy compensation device (BCD) at depth to remain neutral, than a thinner wetsuit.
- B.
Will lose positive buoyancy as it ages (due to crushing of the neoprene), requiring the diver to use less weight for neutral buoyancy as the suit gets older.
- C.
Can be useful even in tropical areas, but is necessary for safely diving in cooler water temperatures.
- D.
All of the above.
- 28.Immediately upon reaching the dive site, you should:
- A.
Check your equipment.
- B.
Suit up.
- C.
Discuss the dive plan with your buddy.
- D.
Observe conditions.
- 29.No dive plan is complete without:
- A.
A malfunction in equipment.
- B.
A list of all the dives you have completed.
- C.
A good contingency plan.
- D.
A mean Chapter Diving Safety Officer.
- 30.Completing any given scuba certification course makes you knowledgeable and skillful enough to dive safely in or at:
- A.
Closed compartments in shipwrecks.
- B.
Water with conditions similar to those in which you were trained.
- C.
Depths deeper than 100 feet.
- D.
Anywhere
- 31.If during a dive you and your buddy become separated, you should:
- A.
Return to where you last saw him/her and search.
- B.
Go up a few feet and search until you locate his/her exhaust bubbles.
- C.
Remain where you are until he/she finds you.
- D.
Spend no more than one minute looking and then safely surface.
- 32.A dive team conducting a night dive should have a total of how many lights (minimum) between them?
- A.
1
- B.
2
- C.
4
- D.
5
- 33.It is recommended that a dive team diving from an anchored boat begin their dive:
- A.
With the prevailing current.
- B.
At low tide.
- C.
Against the prevailing current.
- D.
With negative buoyancy.
- 34.It is recommended that a dive team diving from an anchored boat have
- A.
Gear with matching colors
- B.
High anxiety and small physical size
- C.
Resistance to pain
- D.
A trail line 30 meters long with a buoy at the end
- 35.Planning safe, successful, and fun dives requires:
- A.
Good weather.
- B.
Care and attention to detail.
- C.
Warm water and no hazardous marine life.
- D.
A dive computer.
- 36.When conducting a buoyancy check, neutral buoyancy or proper weighting is attained when, with a normal breath, you float at or near:
- A.
Waist level.
- B.
Shoulder level.
- C.
Eye level.
- D.
Instead of floating, you sink slowly.
- 37.Decompression Sickness (DCS) is usually caused by some combination of exceeding recommended time and depth exposure limits along with a possible rapid ascent rate. Some Type II DCS signs/symptoms are characterized by:
- A.
Dizziness, loss of bowel/bladder control, tingling in extremities.
- B.
Burning skin, euphoria.
- C.
Aching in the muscles and joints
- D.
None of the above.
- 38.______________ is a worldwide emergency network of hyperbaric chambers and diving physicians.
- A.
U.S. Coast Guard (USCG)
- B.
Divers Alert Network (DAN)
- C.
National Oceanic & Atmospheric Administration (NOAA)
- D.
University of South Florida (USF)
- 39.A diver experiencing anxiety should:
- A.
Ascend immediately
- B.
Stop, rest, and breathe slowly and deeply until they recover
- C.
Descend and continue the dive
- D.
Swim at maximum pace toward the beach or boat
- 40.A diver experiencing Arterial Gas Embolism (AGE) usually exhibits signs and symptoms within 5 minutes of surfacing from a dive. These signs/symptoms may include:
- A.
Severe headache, dizziness, shortness of breath.
- B.
Pain in a joint area
- C.
Euphoria, skin rash.
- D.
Pain in the sinuses, nausea.
- 41.
- A.
Site selection, environmental conservation, local thermocline.
- B.
Depth, duration, activity, and buddy team ability to perform the anticipated dive.
- C.
Concern for the evening social schedule, buddy selection, equipment color/appearance.
- D.
All of the above.
- 42.Which of the following physical factors can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving?
- A.
Inadequate sleep.
- B.
A recent head cold.
- C.
Recent ingestion of drugs (medicine, alcohol, narcotics).
- D.
All of the above.
- 43.A diver on the surface waving his/her hand overhead and thrashing violently indicates:
- A.
Distress.
- B.
Danger.
- C.
Out of air.
- D.
Euphoria.
- 44.In an out-of-air situation at depths shallower than 33 feet of seawater (10 m), if making a shared-air or redundant scuba ascent is not possible, the procedure of choice is:
- A.
Buddy breathing ascent.
- B.
Breath holding ascent.
- C.
Rapid ascent.
- D.
Emergency swimming ascent.
- 45.A diver displaying signs of in-water distress often includes the following signs:
- A.
Calm, relaxed behavior and agitated behavior.
- B.
Agitated behavior and buoyancy problems.
- C.
Excessive bubbles exhaled from the regulator and relaxing at the surface post-dive.
- D.
No buoyancy problems and relaxed behavior.
- 46.Four main actions you should consider in giving first aid for diving accidents are:
- A.
Give mouth-to-mouth, call the Coast Guard, keep victim warm, talk to them.
- B.
Treat for shock, call a lifeguard, deliver 100% oxygen, give liquids.
- C.
Maintain basic life support, call for help, treat for shock, deliver 100% oxygen.
- D.
Tilt victim's feet up at 50 degrees, deliver oxygen, call a doctor, encourage victim.
- 47.One common sign that accompanies Type I Decompression Sickness is:
- A.
Sinus headache.
- B.
Ear pain.
- C.
Euphoria.
- D.
Deep, joint-centered aching or pain.
- 48.When a diver is distressed at the surface, he or she should take the following action:
- A.
Descend, make a decompression stop, relax and gain control of breathing.
- B.
Thrash wildly at the surface, deflate his/her buoyancy compensator, and continue diving.
- C.
Stop and signal their buddy, establish positive buoyancy, relax and gain control of breathing.
- D.
Ditch their weight belt or weight system, inflate their buoyancy compensator as full as possible, relax and gain control of breathing.
- 49.Continued loss of body heat in cold water will produce:
- A.
Confusion.
- B.
Progressive immobility.
- C.
Insensibility to pain.
- D.
All of the above.
- 50.SCUBAnauts International (SNI) is an organizational member of AAUS, which is an acronym for:
- A.
The Association for Academic Underwater Scubadiving.
- B.
The American Academy of Underwater Sciences.
- C.
The Academy of American Underwater Scientists.
- D.
The Academic Association of Underwater Scientists.
- 51.SNI diving regulations require which of the following to maintain status as a current qualified diver?
- A.
At least 6 dives in the last 12 months, and at least one dive to 100 fsw (30 m).
- B.
At least 12 dives in the last 12 months, a current approved diving physical, and at least one dive to your maximum level of qualification.
- C.
A certification card (a.k.a., c-card) for open water diver and advanced open water diver.
- D.
None of the above, once you are an SNI diver, you can always dive with SNI.
- 52.Which of the following is true of the SNI diver qualification rating system (DIT, D-30, D-60, D-100)?
- A.
It is not a rank system, and divers may move up or down in the rating based on current skills.
- B.
A diver with a D-100 rating is a better diver than a diver with a D-60 rating.
- C.
Every SNI diver should expect to be a D-100 diver when they get enough experience.
- D.
Once you reach a certain qualification level, you can never have your qualification reduced.
- 53.With SNI, the ultimate diving authority rests with the:
- A.
President of SNI
- B.
SNI Diving Safety Officer (DSO)
- C.
Diving Control Board
- D.
Diver in Charge (DIC)
- 54.According to SNI regulations, the Diver in Charge (DIC):
- A.
Must be an adult who is a Divemaster, Assistant Instructor, Instructor, or in training for those certifications.
- B.
Does not have to be in the water for every dive as long as they remain in a supervisory capacity.
- C.
Is designated by the Chapter Diving Safety Officer or SNI DSO as the on-scene leader for a diving operation.
- D.
All of the above.
- 55.Dive logs are essential to safety and record keeping. On multiday expeditions, the team dive log:
- A.
Must be available on request within 24 hrs.
- B.
Is due within two weeks after the end of the trip.
- C.
Must be kept in the open and completed by every diver immediately after each dive.
- D.
Must always use PADI dive tables to record the repetitive group (RG).
- 56.SNI divers must maintain current certifications in:
- A.
Rescue Diver and Advanced Open Water Diver.
- B.
Underwater scientific techniques.
- C.
Equipment and cylinder maintenance.
- D.
CPR, First Aid, and Emergency Oxygen Provider.
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