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  • Online Learning Quick Review

    This twenty one question review is for divers who have completed the eLearning or other PADI at home learning system.  The signed review is a required document for certification.  Once completed it will be attached to your Referral paperwork and included in your file automatically.

  • Directions: Choose the best one answer from the choices provided.

    Hint: Each question has only one right answer.  You will answer 21 multiple choice questions.

  • 381DT (08/14) Version 4.0

  • Review Sign and Submit

    If you missed any questions you will be asked to review them next.  If you scored a 100 then you can simply sign and date the Quick Review.  Don't forget to push the Submit button at the bottom of the next page.

    • You missed Question 1:  
    • 1. What is the most important rule in scuba diving?

      The correct answer is: Breathe continuously and never hold your breath.

      Here is why:

      While very serious, lung overexpansion injuries are among
      the easiest to avoid. Breathe at all times and never hold
      your breath.

      This rule is so important, that any time your regulator is
      not in your mouth you exhale a slow, steady bubble stream
      so you aren't holding your breath. 

      Your answer was: {1What}  If your still not sure why this is incorrect have your instructor explain in more detail.

    • You Missed Question 1 Stopper  
    • You missed Question 2:  
    •  

      2. To keep my ears from hurting while descending, I should:

      The correct answer is: equalize early and often.

      Here is why:

      You equalize early and often as you descend. Begin equalizing
      immediately, as soon as your head goes underwater.
      Equalize frequently - every metre/few feet, before you
      feel discomfort.

      You will equalize more on an open water dive than in confined
      water because you'll be going deeper.

       Your answer was: {2To} If your still not sure why this is incorrect have your instructor explain in more detail.

    • You Missed Question 2 Stopper  
    • You missed Question 3:  
    •  

      3. Diving when I have a cold or allergies may cause me to:

      The correct answer is: have significant difficulty equalizing pressure in my body air spaces.

      Here is why:

      Never dive with a cold or allergy. They can cause congestion that might block normal air flow and may make equalization of body air passages
      difficult or impossible.

      Your answer was: {3Diving} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 3 Stopper  
    • You missed Question 4:  
    •  

      4. If I can’t equalize my ears while descending, I should:

      From the choices available the correct answer is: end the dive.

      Here is why:

      If you can't equalize, stop your descent immediately. Signal your buddy(ies) or instructor - they have no way of knowing you have an equalization problem unless you tell them. If you can't equalize end the dive.

      Your answer was: {4If} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 4 Stopper  
    • You missed Question 5:  
    •  

      5. Holding my breath while scuba diving can:

      The correct answer is: cause serious, life-threatening lung injuries.

      Here is why:

      Expanding air can cause serious lung overexpansion (lung rupture) injuries. For this reason, the most important rule in scuba diving is to breathe continuously and never, ever hold your breath. Even slight pressure changes - as little as a metre/2-3 feet - can cause these injuries if you were to ascend holding a full breath.

      Your answer was: {5Holding} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 5 Stopper  
    • You missed Question 6:  

    • 6. If I work too hard and find it difficult to breathe underwater, I should:

      The correct answer is: stop all activity and rest, hold onto something for
      support if possible.

      Here is why:

      If during a dive, you have to swim hard because of an unex­pected current. If you were to begin to feel fatigued, have labored breath­ing, experience a feeling of suffocation or air starvation, and perhaps feel like you may panic, you should stop all activity and rest, hold onto something for support if possible.

      Your answer was: {6If18} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 6 Stopper  
    • You missed Question 7:  
    •  

      7. During a dive, I can’t stop shivering. What should I do?

      The correct answer is: Exit the water immediately, dry off and seek warmth.

      Here is why:

      Normally, you'll end a dive if you start to get too cool for comfort. But if you begin to shiver continu­ously, exit the water immediately, dry off and seek warmth. If uncontrollable shivering begins, it is a sign/symptom of hypothermia.

      Your answer was: {7During} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 7 Stopper  
    • You missed Question 8:  
    •  

      8. The most important feature of my weight system is:

      The correct answer is: a quick release that allows me to drop enough weight to float.

      Here is why:

      Diving weights can be hazardous.  Make sure the quick release on your weight system is clear so that you can, in a single motion, release enough weight to be sure you float.  Never hesitate to drop your weights at the surface in an emergency. Quick-release the weights and pull them clear of your body before dropping them.

      Your answer was: {8The} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 8 Stopper  
    • You missed Question 9:  
    •  

      9. If I become separated from my buddy underwater, what
      should I generally do?

      The correct answer is: Search for a minute underwater and then go up to find my buddy.

      Here is why:

      Although you shouldn't get separated from your buddy, you should know what to do if it happens. During dive planning, discuss what to do if you get separated - how you will reunite (meet some place, etc.).

      The general procedure is to look for each other for no more than a minute, then if unable to relocate each other, carefully ascend and reunite on the surface. But this procedure may not be practical in some environments, so in those instances it's important to plan what you would do if buddy separation occurs.

      Your answer was: {9If} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 9 Stopper  
    • You missed Question 10:  

    • 10. My buddy and I observe a mild current at the dive site.
      Generally, how should we begin our dive?

      The correct answer is: Dive against or into the current.

      Here is why:

      Begin a dive in mild current swimming slowly into the current. Do this so that when you turn the dive, the current will push you back to your exit point rather than away from it.

      Currents tend to be strongest at the surface and weakest near the bottom , so avoid long surface swims in a current - descend, then swim against the likely milder current on the bottom. 

      Your answer was: {10My} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 10 Stopper  
    • You missed Question 11:  

    • 11. My buddy and I can’t get back to the boat due to a current. What should we do?

      The correct answer is: Make ourselves float, signal for help, rest and wait for the boat to pick us up.

      Here is why:

      If you can't get to the boat because you're exhausted (or better, because you're avoiding exhaustion), remain calm and inflate your BCD (or, drop your weights if you have a BCD problem). Signal the boat with your
      whistle/inflatable signal tube, etc. to pick you up.

      Keep in mind that diving in anything stronger than
      a mild current requires special training.

      Your answer was: {11My} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 11 Stopper  
    • You missed Question 12:  
    •  

      12. Most injuries caused by aquatic animals happen because:

      The correct answer is: the animal is trying to protect itself.

      Here is why:

      Nearly all aquatic life injuries result from human carelessness. Very few organisms are outwardly aggressive, and most injuries result from defensive responses by animals. Bites, which can seem aggressive, are most often defensive (e.g., an eel may bite a hand put into the hole it lives in).

      Your answer was: {12Most} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 12 Stopper  
    • You missed Question 13:  
    •  

      13. If a diving-related problem occurs at the surface, I should:

      The correct answer is: immediately establish positive buoyancy and stop, think, then act to handle the problem.

      Here is why:

      Most diver-in-distress situations occur at the surface. You can control or prevent having a surface problem yourself by diving within your limits, relaxing while you dive, and establishing and maintaining positive buoyancy on the surface.

      Regardless of the cause, if a diving-related problem occurs at the surface, Immediately establish buoyancy by inflating your BCD or dropping your weights. Stay at the surface using the least energy possible - by floating, not by kicking.

      Your answer was: {13If} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 13 Stopper  
    • You missed Question 14:  
    •  

      14. My buddy gives me the out-of-air signal, I should:

      The correct answer is: offer my buddy my alternate air source, then ascend together in a controlled manner.

      Here is why:

      With proper air management, running out of air is very unlikely, but you should know how to handle the situation. If possible, you want to respond to an air supply problem by using an alternate air source. The most common type is a second stage readily accessible.

      Think of this as your best, all around choice when you have an alternate air source immediately available. During your predive safety check, confirm what alternate air sources your buddies have and how to secure them. Test breathe your alternate air source(s). To supply an alternate air source to a buddy, you need to stay close to each other at all times.

      Your answer was: {14My} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 14 Stopper  
    • You missed Question 15:  
    •  

      15. The risk of decompression sickness (DCS – nitrogen bubbles blocking blood flow in the body after a dive) increases, if a diver:

      The correct answer is: is tired, cold, sick, thirsty or overweight.

      Here is why:

      Although time and depth are the primary variables that affect whether bubbles will form in the body and cause decompression sickness, other factors influence how your body absorbs and releases excess nitrogen. Physiologists think that when present, the following secondary factors can contribute to developing DCS:

      • Alcohol consumption before or after a dive
      • Dehydration
      • Cold
      • Poor fitness/high body fat
      • Injuries
      • Vigorous exercise before, during or immediately after the dive
      • Illness
      • Age

      Your answer was: {15The} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 15 Stopper  
    • You missed Question 16:  

    • 16. To reduce the risk of decompression sickness:

      The correct answer is: make a safety stop at 5 metres/15 feet at the end of each dive.

      Here is why:

      A safety stop is simply a pause in your ascent between 6 metres/20 feet and 3 metres/10 feet (commonly 5 metres/15 feet) for three to five minutes.

      A safety stop helps slow your overall ascent, then gives your body tissues extra time to release dissolved gases. Among other benefits, this helps reduce the risk of lung overexpansion injuries and decompression sickness.

      Your answer was: {16To} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 16 Stopper  
    • You missed Question 17:  
    •  

      17. The first step in using your dive computer is

      The correct answer is: reading the manufacturer’s instructions.

      Here is why:

      Before you dive with a computer, you need to set it up and activate it.

      The first step is to read the dive computer manual. if you don't have it available, you can often download it from the manufacturer's website.

      Computers are very similar, but they have their individual characteristics. It is your responsibility to read and understand the manufacturer's
      instructions, because recommendations sometimes differ.

      Your answer was: {17The} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 17 Stopper  
    • You missed Question 18:  
    •  

      18. If I make two dives in one day and plan to fly home on a
      commercial plane. What is the minimum time I should wait
      before getting on the plane?

      The correct answer is: 18 hours

      Here is why:

      Over the years, recommendations for flying after diving have changed. At this writing, the dive medical community's recommendations for flying after diving are:

      For no stop dives:

      • Single dives (no repetitive dive) - A minimum preflight surface interval  of 12 hours is suggested.

      • Repetitive dives or multiday dives (diving every day for several days in a row) - A minimum preflight surface interval of 18 hours is suggested.

      Dives requiring emergency decompression stops:

      • A minimum preflight surface interval greater than 18 hours is suggested.

      Your answer was: {18If} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 18 Stopper  
    • You missed Question 19:  
    •  

      19. To plan a dive, I use my dive computer’s Dive Plan Mode (or other name the manufacturer uses) to determine

      The correct answer is: the no stop limits for each depths (typically in 3
      metre/10 foot increments).

      Here is why:

      You can see the no stop limits for each depth in your dive computer's Dive Plan Mode (your computer may use a different name for this; see the manufacturer literature, or ask your instructor to help you).

      With most computers, you scroll depths in 3 metre/10 foot increments, displaying the maximum time allowed at each depth. You use this information to help plan your dive.

      Your answer was: {19To} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 19 Stopper  
    • You missed Question 20:  

    • 20. If I accidentally exceed my computer’s no stop limits, I need to:

      The correct answer is: decompress according to the computer’s instructions.

      Here is why:

      If you exceed your computer's no stop times, it will go into decompression mode. Decompression mode guides you by providing the depth of your emergency decompression stop and how long you have to stay there before you can ascend to the surface (or the next stop if there is more than one). Don't ascend above the stop depth. You may be slightly deeper, however.

      Computers differ in how they display emergency decompression information. See the manufacturer literature for the details of yours. You can find the RDP Table and eRDPML emergency decompression procedures printed on each and in their Instructions for Use guides.

      Your answer was: {20If} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 20 Stopper  
    • You missed Question 21:  
    •  

      21. Most divers begin to notice the effects of gas narcosis at
      approximately:

      The correct answer is: 30 metres/100 feet

      Here is why:

      Many gases, including oxygen and nitrogen, cause an intoxicating effect under pressure. This is called gas narcosis.

      Breathing air or EANx, most divers begin to notice narcosis at approximately 30 metres/100 feet. Narcosis differs, however, from individual to individual and in the same diver from one dive to the next.

      Your answer was: {21Most} If your still not sure why this is incorrect have your instructor explain in more detail.

       

    • You Missed Question 21 Stopper  
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      Great job! now sign, date and submit your Quick Review. A copy will be included with your Referral paperwork.

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