Scuba Diving Quizzes Online & Trivia

How bored are you right now? Would you like to play a game? Why don't you take these awesome scuba diving quizzes online to gain knowledge and flaunt it too. Tackle multiple choice questions, true or false questions, or yes or no questions, and more to discover amazing facts about yourself and the world. Play these scuba diving quizzes as a party game or if you're just trying to take a break at work.

With challenging questions to test your intelligence and questions that will have you in splits, we bet you will be glued to these scuba diving quizzes for hours. These amazing scuba diving quizzes are perfect for kids, teens, and inquisitive adults too!

Build your knowledge with scuba diving quizzes created for a variety of topics. Name something and we probably already have a quiz for it. What's more, you can create new quizzes on topics of your choice and share them to get bragging rights at the next meet-up

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  • What does the primary benefit of using nitrox gas, also called Enriched Air Nitrox (EANx) include while diving?
    What does the primary benefit of using nitrox gas, also called Enriched Air Nitrox (EANx) include while diving?
    The answer to this is letter A. Nitrox. This is a type of gas that is known to be a mixture of Nitrogen and Oxygen. The oxygen concentration of this is said to be higher as compared to the amount of oxygen that we can normally find in the atmosphere. A lot of tanks are filled with as much as 31% higher tanks. The use of this air can be effective in decreasing the absorption of nitrogen in our system. This is very effective if you would need to go to deeper parts of water without any issues. This will limit the possibility of suffering from the bends which are normally experienced by a lot of people who dive.

  • What should a diver do when cleaning water from inside a mask fitted with a purge valve?
    What should a diver do when cleaning water from inside a mask fitted with a purge valve?
    Look up, hold the top of the mask to the forehead, and exhale through the nose until the water is cleared gravity will force the water out the bottome of the mask. never look down

  • What is the best place to carry an alternative air source?
    What is the best place to carry an alternative air source?
    Correct answer is option D The best alternative place to carry air source in scuba diving is to attach to the triangle area between your chin and your chest. Placing the alternative air source between the chin and the chest ensures that an out or air diver will be able to approach any diver underwater, locate and efficiently secure an alternate air source. Other commonly acceptable positions to carry alternative air source are: attached to the Buoyancy Compensator (BC) on the Lower Left Hand side or Lower Right Hand Side and BC shoulder pocket.

  • What can the contingency SCUBA be characterized as?
    What can the contingency SCUBA be characterized as?
    When you are going to be participating in a SCUBA dive you must always have a plan set out for your dive. Going into the water without some sort of plan could be dangerous and even possibly fatal. Contingency SCUBA is characterized by bringing a completely independent SCUBA cylinder and regulator on your dive. Being prepared even if it might seem like over preparation can be very beneficial should anything go wrong on your dive or should you take more time on your dive than planned for.

  • What causes the life-threatening condition called Decompression sickness(DCS)?
    What causes the life-threatening condition called Decompression sickness(DCS)?
    Nitrogen bubbles. Decompression sickness alludes to the conditions caused by inactive nitrogen or different gases leaving arrangement and framing bubbles inside the body, these bubbles can piece blood stream and can cause different types of tissue damage. Nitrogen bubbles can cause mottling, lumps or a rash. "Skin bends", as they are casually named, are more typical amid hyperbaric chamber 'jumps' and when plunging utilizing a dry suit. Despite the fact that not generally in themselves genuine, skin side effects may show the nearness of issues somewhere else. An especially genuine cutaneous indication of DCS is 'cutis marmorata' marbling, in which a region of skin ends up pale with dim mottling. This is related with significant improvement of idle gas

  • Buildup of which gas in the body triggers the brain to signal our diaphragm and other muscles to breathe?
    Buildup of which gas in the body triggers the brain to signal our diaphragm and other muscles to breathe?
    So this is a good thing? I keep answering the wrong way and answering nitrogen. Read all the way through I guess is what I don't keep doing.

  • There is 79% O2 in your scuba tank
    There is 79% O2 in your scuba tank
    Hello McFly, there is 79% AIR in your tank. Air is comprised of about 21% O2.

  • Choice of a dive site should most importantly include assessment of several key conditions:
    Choice of a dive site should most importantly include assessment of several key conditions:
    I understand that this is what the instruction says... BUT this is a close one. Not every dive site needs tides, wave action, or even wind taken into account (e.g. springs diving). EVERY dive site needs an assessment of factors like water temperature and how the dive site conforms to the diver experience to determine if the dive is appropriate and safe.

  • A diver experiencing vertigo, or dizziness, is most likely an indication that:
    A diver experiencing vertigo, or dizziness, is most likely an indication that:
    Vertigo and dizziness while underwater will be the main characteristic of diving too deep and being subject to nitrogen narcosis.Pain on the surface after a dive could indeed be a side effect of middle ear trauma.The question is not specific enough and both 1 and 4 could apply. This is way too generic.

  • What is the first thing you should do whenever you remove your regulator set from the SCUBA cylinder after a dive?
    What is the first thing you should do whenever you remove your regulator set from the SCUBA cylinder after a dive?
    Fasten the dust cap over the inlet port to prevent moisture/debris from entering the regulator set

  • What is the most important feature of any weight system?
    What is the most important feature of any weight system?
    1. A quick release mechanismEvery weight system used by recreational divers must have a quick release that allows you to get rid of some or all of your weight with one hand in a single movement.(Note the reference to ´some´), you don´t necessarily have to drop all your weight, but just enough to assure that you can float comfortably.

  • When performing a ladder exit, you must always (check all that apply)
    When performing a ladder exit, you must always (check all that apply)
    Avoid the ladder zone if another diver is on or near the ladder Avoid clinging to the ladder to remove fins or adjust equipment Place both feet firmly on each rung when ascending the ladder

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