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What Does Scuba Stand For?

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1. What does scuba stand for?
Scuba is an acronym that stands for Self-Contained Underwater Breathing Apparatus.

2. At what depth will you reach 1ATM of pressure?
You will reach 1ATM of pressure at sea level.

3. At what depth will you reach 2ATM of pressure?
You will reach 2ATM of pressure at the depth of 33ft.

4. What is a pressure squeeze?
A pressure squeeze is a pain caused by gases when a diver’s body is at unequal pressures.

5. What are the bends?
Bends gets its name from a diver “bending” in pain due to a condition called DCS that causes gases to come out of body tissues.

6. What are the 3 reasons you might need a scuba dive knife?
Three reasons that you may need a scuba dive knife is to fight of sea creatures, untangle yourself from fishing nets or seaweed, or to fix equipment.

7. What are the two basic parts of a regulator called?
The first and second stage are the two basic parts of regulator.

8. What 2 metals are scuba tanks made from?
The two metals scuba tanks are made from are steel or aluminum.

9. Answer true or false: a. air is mostly oxygen- It is false because the air is mostly made of nitrogen. b. a properly fitted dive mask is tight- It is false because it should seal out water but also feel comfortable. c. a properly fitted wet suit is tight- It is true because a wet suit should be tight on land because it gets looser in the water. d. a pony tank is only for emergencies- It is false because many people use it for air in order to dive

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