Naui Basic Diver Practice Quiz

130 Questions | Total Attempts: 3858

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Naui Basic Diver Practice Quiz

This practice quiz will help you prepare for the final exam in the NAUI Basic Diver course. Feel free to take it as many times as you like!


Questions and Answers
  • 1. 
    The top five gasses found in normal (atmospheric) air by volume are:
    • A. 

      Nitrogen, Oxygen, Carbon Monoxide, Hydrogen, Helium

    • B. 

      Carbon Monoxide, Nitrogen, Oxygen, Xenon, Water Vapor

    • C. 

      Nitrogen, Oxygen, Argon, Carbon Dioxide, Neon

    • D. 

      Oxygen, Nitrogen, Carbon Dioxide, Helium, Radon

  • 2. 
    The absolute pressure exerted by the Earth's atmosphere on a person standing on the shore at sea level is:
    • A. 

      1 BAR

    • B. 

      1 atmosphere of pressure

    • C. 

      14.7 PSI

    • D. 

      All of the above

  • 3. 
    The absolute pressure exerted on a diver at 10 meters (33 feet) in sea water is:
    • A. 

      64.4 psi

    • B. 

      10 BAR

    • C. 

      3 atmospheres of pressure

    • D. 

      None of the above

  • 4. 
    The primary factors determining your air consumption rate are:
    • A. 

      Depth, Total Nitrogen Time, and fin size

    • B. 

      Age, currents, and visibility

    • C. 

      Water temperature, Residual Nitrogen Time, physical fitness of diver

    • D. 

      Depth, physical activity, and water temperature

  • 5. 
    When selecting a wet suit, key factors to consider include:
    • A. 

      Protection from marine life, donning difficulty, seals around wrists and ankles

    • B. 

      Color, knee padding, and zipper style

    • C. 

      Fit, comfort, and appropriate thickness for your intended dive conditions

    • D. 

      None of the above

  • 6. 
    A dry suit is used for:
    • A. 

      Cold water conditions

    • B. 

      Diving in areas with possible pollutants

    • C. 

      Technical diving

    • D. 

      Any/all of the above

  • 7. 
    When diving a new dive site it is best to:
    • A. 

      Just start diving and learning. Experience is the best teacher

    • B. 

      Dive with a buddy who has experience at that site

    • C. 

      Read a book about the dive site

    • D. 

      Take many pictures with your underwater camera to document the site for future dives

  • 8. 
    Special hazards that exist in and around wrecks include:
    • A. 

      Entanglement in wreck debris

    • B. 

      Entrapment in confined spaces

    • C. 

      Low light/visibility

    • D. 

      Encounters with marine life

    • E. 

      All of the above

  • 9. 
    NAUI recommends that divers observe a _____________ Surface Interval Time (SIT) between repetitive dives.
    • A. 

      30 minute

    • B. 

      1 hour

    • C. 

      2 hour

    • D. 

      4 hour

  • 10. 
    "Rapture of the Deep" is an intoxicated, euphoric feeling sometimes experienced by divers, which is more formally known as:
    • A. 

      Decompression Sickness (DCS)

    • B. 

      Pneumothorax

    • C. 

      Pulminary Embollism

    • D. 

      Nitrogen Narcosis

  • 11. 
    When consuming alcoholic beverages, divers should:
    • A. 

      Limit consuming alcohol to a few hours before diving

    • B. 

      Abstain from alcohol for at least 12 hours before diving

    • C. 

      Drink extra water because alcohol can lead to dehydration

    • D. 

      Consume no more than 2 drinks or maintain .05 Blood Alcohol Content (BAC) or lower in bloodstream

  • 12. 
    Objects under water may appear __________________ and ____________________ than on land.
    • A. 

      Closer, faster

    • B. 

      Brighter, shinier

    • C. 

      Larger, closer

    • D. 

      Smaller, slower

  • 13. 
    Decompression sickness, or "the bends" occurs when:
    • A. 

      Divers descend too quickly and cause rupture of the eardrums

    • B. 

      Divers ascend from depth too quickly, causing dissolved nitrogen to come out of solution in the body

    • C. 

      Divers ascend too quickly, become disoriented and crash into the dive boat

    • D. 

      Divers get a muscle cramp and ask their buddy to help "bend" their legs to relieve the cramps

  • 14. 
    The "Lost Buddy Procedure" includes the following steps:
    • A. 

      Ascend, look for your buddy's bubbles, if they are not present, continue to the agreed upon rendezvous point

    • B. 

      Immediately ascend and look for your buddy at the surface

    • C. 

      Ascend a few feet, look for your buddy's bubbles, ascend a few feet more, look for bubbles, and repeat until surfaced, wait at the surface for your buddy.

    • D. 

      None of these

  • 15. 
    The benefit of the Push method of tired diver recovery, where the rescuer pushes the tired diver while holding the tired diver's fins to their shoulders include:
    • A. 

      The ability to look into the tired diver's face to assess consciousness or shock

    • B. 

      The ability to swim in a more streamlined manner to cover more distance

    • C. 

      The ability to steer and control your buddy in the water

    • D. 

      All of the above

  • 16. 
    Ripples in a sandy bottom, rock formation, sun direction, and wave action are all forms of natural navigation
    • A. 

      True

    • B. 

      False

  • 17. 
    Naturally occuring magnetic minerals (such as magnetite) in rocks/ledge on the bottom can throw off your compass, making compass navigation more difficult
    • A. 

      True

    • B. 

      False

  • 18. 
    Divers should breathe ______________________ and ___________________ than they would on land.
    • A. 

      Slower, shallower

    • B. 

      Quicker, shallower

    • C. 

      Slower, deeper

    • D. 

      Quicker, deeper

  • 19. 
    The "Giant Stride" entry is characterized by:
    • A. 

      A backwards roll into the ocean from the side of the boat

    • B. 

      A vertical step into the ocean and away from a solid platform, such as a boat deck or flat rock

    • C. 

      A feet-first hop from the stern of the dive boat

    • D. 

      The waterslide off the stern of the dive boat

  • 20. 
    If you are feeling short of breath on a dive, you must ________________________, ______________________ and ______________________.
    • A. 

      Stop using your arms, breathe rapidly to increase oxygen, and ascend

    • B. 

      Stop swimming, check your regulator, and ask your buddy to turn your SCUBA cylinder on more

    • C. 

      Stop, ditch weight, and tell your buddy to slow down

    • D. 

      Stop swimming, rest, and breathe deeply

  • 21. 
    A diver should never allow SCUBA cylinders to:
    • A. 

      Be stacked for fear of breakage

    • B. 

      Overheat in cars or while in storage

    • C. 

      Be painted or covered in adhesive decals

    • D. 

      Be taken apart for internal visual inspection

  • 22. 
    Contingency SCUBA can be characterized by:
    • A. 

      Letting your buddy breathe off your octo/backup 2nd stage regulator if he/she runs out of air

    • B. 

      Planning your dive with your buddy and discussing what to do in the case of emergency

    • C. 

      Telling your friends and family where you will be diving in case of an accident

    • D. 

      Bringing a completely independent SCUBA cylinder and regulator on your dive

  • 23. 
    Salt water is:
    • A. 

      Denser and heavier than fresh water, making you more bouyant

    • B. 

      Denser and heavier than fresh water, making you less bouyant

    • C. 

      Less dense/lighter than fresh water, making you less bouyant

    • D. 

      Less dense/lighter than fresh water, making you more bouyant

  • 24. 
    Archimedes' Principle states that:
    • A. 

      Gasses such as air are compressed by one atmosphere of pressure or 14.7 PSI for every 33 feet of depth

    • B. 

      Water density is constant at all depths because water cannot be compressed

    • C. 

      An object's upward buoyant force is equal to the weight (downward force due to gravity) of the fluid displaced by the object

    • D. 

      None of these

  • 25. 
    There are several distinct styles of buoyancy compensating devices (BCDs), including:
    • A. 

      Jacket/vest

    • B. 

      Horse collar

    • C. 

      Back/rear flotation

    • D. 

      Diving bell

    • E. 

      A and C above

    • F. 

      A, B & C above

    • G. 

      A, B, C & D above

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