According to NAUI Dive Tables, a "repetitive dive" is any dive made less than _____ hours after a previous dive. - THE CORRECT ANSWER IS 24
The *recommended* minimum surface interval for the NAUI Dive Tables is: - THE
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According to NAUI Dive Tables, a "repetitive dive" is any dive made less than _____ hours after a previous dive. - THE CORRECT ANSWER IS 24
The *recommended* minimum surface interval for the NAUI Dive Tables is: - THE CORRECT ANSWER IS 60 minutes
When using NAUI Dive Tables, all dives to depths shallower than 40 fsw (12 msw) are considered: - THE CORRECT ANSWER IS 40-foot (12-meter) dives
A NAUI Instructor takes her advanced students to 30 msw (100 fsw) for 18 minutes, then ascends and completes a safety stop at 5 msw (15 fsw) for three minutes, then surfaces. According to NAUI Dive Table rules, the instructor and her class have: - THE CORRECT ANSWER IS Attained the letter group of "F"
Using the NAUI Dive Tables, the RNT for a Group "D" Diver diving to 22 msw (72 fsw) is: - THE CORRECT ANSWER IS 18 minutes
Two divers, have just completed several days of repetitive ocean diving at 3:00 p.m. with a Repetitive Group of "J." When could they take a flight home? - THE CORRECT ANSWER IS If the aircraft is pressurized to sea level
after 24 hours if the aircraft is pressurized to 2500m (8000 feet) of elevation
When their dive computers allow
all of the above
Who is credited with developing the *NAUI RGBM* dive tables? - THE CORRECT ANSWER IS B.R. Wienke
Minimum surface intervals required by *NAUI RGBM No-Calculation Sea Level Tables* are: - THE CORRECT ANSWER IS One hour
A dive team makes a dive to a depth of 27 mfw (90 ffw) for 20 minutes in a fresh water lake at an elevation of 1830 meters (6000 feet). What is their required decompression obligation? - THE CORRECT ANSWER IS NAUI Dive Tables cannot be directly applied because of altitude
A buddy team makes an ocean dive to 29 msw (95 fsw) for 20 minutes. After a one hour and 20 minute surface interval they make a dive to 20 msw (65 fsw). What is their Maximum Dive Time for the second dive? - THE CORRECT ANSWER IS 19 minutes
The lubber line on a compass: - THE CORRECT ANSWER IS Indicates the course or bearing the user will follow
The basic types of compasses are: - THE CORRECT ANSWER IS Direct reading and indirect reading
The position each species occupies in its habitat is called its - THE CORRECT ANSWER IS Niche
The minimum number of lights recommended for a night dive is: - THE CORRECT ANSWER IS two lights per diver
Deep diving is typically defined as dives deeper than: - THE CORRECT ANSWER IS 60 fsw (18 msw)
The reciprocal compass heading for an original compass heading of 30 degrees is: - THE CORRECT ANSWER IS 210 degrees
Compass deviation is defined as - THE CORRECT ANSWER IS the compass error caused by nearby metal
The ALPHA flag is: - THE CORRECT ANSWER IS Blue and White Swallow tail flag indicates the boat is unable to maneuver due to underwater operations.
Hazards of deep diving include: - THE CORRECT ANSWER IS Increased risk of decompression sickness
Risk of Nitrogen Narcosis
Increased Air Consumption
Natural landmarks underwater are of little use to a diver who is able to use a compass. - THE CORRECT ANSWER IS False
The wavelength of a wave is the distance from: - THE CORRECT ANSWER IS Crest to crest
The rhythmic rising and falling of the water called "tides" is caused primarily by: - THE CORRECT ANSWER IS Gravitational influence of the moon
Offshore surface currents in large bodies of water are caused primarily by: - THE CORRECT ANSWER IS The wind
The horizontal boundary between waters of different salinity is termed - THE CORRECT ANSWER IS Halocline
The most common "plants" in the ocean are: - THE CORRECT ANSWER IS Phytoplankton
Stinging cells, such as on jellyfish, are called: - THE CORRECT ANSWER IS Nematocysts
On a gradually sloping beach, a moderately large swell will form what type of breaking waves - THE CORRECT ANSWER IS Spilling breakers
Waves caused by the wind increase in size with the wind velocity, duration, and: - THE CORRECT ANSWER IS Fetch
Red Tide is caused by______________: - THE CORRECT ANSWER IS Result of a plankton bloom
Sand ripples on the bottom in the ocean are usually: - THE CORRECT ANSWER IS Parallel to the shore
Which of the following is *not true* of the Visual Cylinder Inspection program? - THE CORRECT ANSWER IS Cylinder inspection is recommended every other year
The internal valves of a scuba regulator first stage are available in two basic types: ____________ and _____________ . - THE CORRECT ANSWER IS Diaphragm and Piston
The term "two-stage regulator" means: - THE CORRECT ANSWER IS The regulator reduces cylinder pressure to ambient pressure in two steps
The purpose of a hydrostatic test of a scuba cylinder is to: - THE CORRECT ANSWER IS Determine the permanent expansion of the cylinder
Which of the following is not part of the cylinder valve? - THE CORRECT ANSWER IS Diaphragm
Regulations for cylinders and their markings are established by: - THE CORRECT ANSWER IS Governmental agencies around the world and vary from place to place
Regulator maintenance after diving includes all of the following *except:* - THE CORRECT ANSWER IS Lubrication with silicone spray between dives
Which valve uses a captured o-ring to lessen the chance of failure during a dive? - THE CORRECT ANSWER IS DIN Valve
The three basic types of buoyancy compensators (BCs) are: - THE CORRECT ANSWER IS Horse collar, jacket and back inflation
A compressed gas cylinder with a four-inch wide green horizontal band bordered with yellow just below the cylinder shoulder indicates the cylinder: - THE CORRECT ANSWER IS has been cleaned and is dedicated to nitrox use
What is the first link in the chain of survival? - THE CORRECT ANSWER IS Early recognition and rapid activation of EMS
Personal protective equipment, which can help prevent infection while providing care, includes: - THE CORRECT ANSWER IS Gloves
Mask or face shield for CPR
Protective eyewear
True or False: The recovery position should not be used on someone with a suspected spine injury. - THE CORRECT ANSWER IS True
Gas exchange takes place at the: - THE CORRECT ANSWER IS Alveolar-capillary membrane
Compression to rescue breaths ratio in single rescuer CPR is 30:2 for an adult. What is the rate per minute for the chest compressions? - THE CORRECT ANSWER IS 100 to 120 per minute
To avoid legal problems, always ask a patient for ___________ before you provide first aid. This may be done by: __________________ - THE CORRECT ANSWER IS Permission; "My name is.... I am a first aid provider. May I help you?"
What is the initial treatment for controlling external bleeding? - THE CORRECT ANSWER IS Direct pressure
Which statement(s) best describes shock? - THE CORRECT ANSWER IS Potentially life threatening condition
Inadequate circulation and oxygenation of body tissues
Emergency requiring immediate first aid
Body mechanics to be followed by the rescuer when lifting, include - THE CORRECT ANSWER IS Keeping the back straight and bending from the hips
Lifting with the legs
Keeping the head in a neutral position
Percentage of oxygen delivered when using a demand valve is influenced by: - THE CORRECT ANSWER IS Mask seal and fit
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