FREE Scuba Diving Certification Question and Answers
It is known as ____ when a liquid tends to force a lighter object to the surface.
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.
_________ is a typical method of preventing decompression sickness.
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.
The majority of recreational divers wear a set that allows them to breathe through the ___________.
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.
Which of these would you classify as "confined water"?
Your training will begin in "confined water" conditions. Clearly, the risks are reduced by learning the fundamentals in a swimming pool.
What is "confined water's" opposite?
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").
You want to be _________ when you've descended to your desired depth.
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.
The diver's ____ is also known as the cylinder.
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.