FREE Scuba Diving Certification Question and Answers

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The majority of recreational divers wear a set that allows them to breathe through the ___________.

Correct! Wrong!

Explanation:
Divers, among other types of divers, only breathe air from their tank through their mouths during recreational scuba. Military divers, for instance, who perform difficult dives, employ a nose-and-mouth arrangement.

You want to be _________ when you've descended to your desired depth.

Correct! Wrong!

Explanation:
As you might expect, neutral buoyancy means that you are not being dragged up or down. As a result, more energy may be used for movement and exploration.

What is "confined water's" opposite?

Correct! Wrong!

Explanation:
An example of open water is the sea. It's not the only kind, though. Lakes, rivers, ponds, etc. are all examples of open water—anything large and artificial. (Note: Since man-made lakes are too huge to be categorized as controlled environments, they would also be regarded to be "open water").

The diver's ____ is also known as the cylinder.

Correct! Wrong!

Explanation:
The pressurized air required by a diver is stored in a cylinder or tank. Due to the compression, a diver can stay below for longer periods of time than they could with a regular volume of air.

Which of these would you classify as "confined water"?

Correct! Wrong!

Explanation:
Your training will begin in "confined water" conditions. Clearly, the risks are reduced by learning the fundamentals in a swimming pool.

_________ is a typical method of preventing decompression sickness.

Correct! Wrong!

Explanation:
One of the few things about scuba that non-divers are aware of is how to avoid the "bends" by stopping frequently as you ascend. And although though vitamin D is now expected to help with *everything*, it does not prevent decompression sickness.

It is known as ____ when a liquid tends to force a lighter object to the surface.

Correct! Wrong!

Explanation:
Non-divers may easily understand buoyancy. We observe it in bathtubs, swimming pools, and other places. However, buoyancy and its control are significantly more difficult to handle when scuba diving.

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