Guys & Gals,

Here are the answers to the Scuba Quiz. The reference for this quiz is the NOAA Diver's Manual. Please don't shoot the messenger if you don't agree with the answers!

Question 1: SCUBA stands for "Self Contained Underwater Breathing Apparatus". True

Question 2: Decompression sickness: All the above

Question 3: Nitrogen Narcosis: is similar to alcohol intoxication

Question 4: Underwater pressure doubles every 10 meters while diving. False

Question 5: What % of oxygen and nitrogen are in a standard scuba tank? 21% oxygen 78% nitrogen 1% other

Question 6: An object is less buoyant in ________ than _______? fresh water salt water

Question 7: Holding your breath while scuba diving... is extremely dangerous.

Question 8: The term used for this piece of equipment is... the second stage.

Question 9: Water absorbs heat fasted than air. True

Question 10: If a diver becomes unresponsive underwater, one should... bring immediately to the surface.

Question 11: A thermocline is... an abrupt change in water temperature.

Question 12: As you descend, you consume air from your scuba tank... Faster

Question 13: One reason buoyancy control is important is because need to control their rate of ascent and descent in the water. True

Question 14: A squeeze is a... pressure imbalance where the outside of an object is greater than the inside of an object.

Question 15: Underwater, items you see will appear... magnified by 33%.

Question 16: When the (flat) hand moves side to side (under the chin), the hand signal means...
Out of air.

Question 17: One reason a depth gauge is important is because... Depth dictates how long you can stay underwater.

Question 18: (Waving your hand in an arc from overhead to the water), the hand signal means...Distress/Help

Question 19: BCD stands for... Buoyancy control device.