Deep-Six Underwater Systems, Inc.
"Add Depth to Your Life"

Table of Contents

1 Pressure and Gases
2 The Face Mask
3 The Snorkel
4 The Fins
5 Weight Systems
6 The Knife
7 The Wetsuit
8 Pressure and Water
9 The Ear and Pressure
10 The Sinus and Pressure
11 The Stomach/Intestine and Pressure
12 The Lung and Pressure
13 Barotrauma caused by External Air Spaces
14 The Buoyancy Compesation Device (BCD)
15 The Scuba Cylinder
16 The Scuba Cylinder Valve
17 The Regulator
18 Density and the Diver
19 The 4 Gas Laws
20 Hand Signals
21 Carbon Monoxide Poisoning
22 Hyperventilation
23 Nitrogen Narcosis
24 Diver's Flags
25 Sound Underwater
26 Color Underwater
27 Decompression Sickness
28 Breathing Oxygen
29 Deep Diving
30 Thermoclines
31 Thunderstorms
32 Underwater Life
33 Open Water Dives
34 The Final Examination
35 The Environment
36 Advanced Course

34 - The Final Examination

     The final examination consists of 50 multiple-choice questions. It is given on the last classroom day of the course and precedes the open-water dives. There is only one answer for each question. There is no time limit for taking the exam. It is not an open-book exam.

     The questions cover all aspects of the course. The minimum grade for successful completion of the exam is 100%. That means the diver must know the correct answer to ALL questions prior to going on the open-water dives.

     There is special concentration of the use of the US Navy Decompression Table. Several problems are related to being able to figure out repetitive groups, stops, RNT, etc. Be sure to be thoroughly familiar with these concepts.

     Here are sample questions and concepts that one can expect to find on the examination:

The first line of defense in a surface drowning of a fellow diver in Lake Minnewaska is to do what?

The diver's flag commonly used in fresh water in the United States looks like?

Of the following would be considered the 3 most needed in all diving situations? SPG, Compass, Watch, Weight belt, Depth gauge, Wet suit

As one descends colors "disappear" due to water's selective filtration and absorption. Which color is lost first?

What beneficial thing, related to gases, happens to your body tissues during the Surface Interval Time of a repetitive dive series?

"Reciprocal Course" refers to what?

A buddy team plans a cold and strenuous dive. How would the dive profile be adjusted for these adverse conditions?

You and your buddy dive to 71 feet for 39 minutes. What is your Repetitive Dive Group?

If during a dive you lose contact with your buddy you should do what?

When packing for a dive, what items are packed in the bag first through last?

Your surface air consumption rate allows you to remain underwater for 1 hour. How long would you be able to stay under at 99' (in minutes)?

Most aquatic animal injuries result from what cause?

Choose the diver's greatest enemy from the following list: Buoyancy, sharks, Killer Whales, hypothermia, panic, a torn wet suit, a missing dive boat, their buddy, pollution, thunderstorms, throwing up, boat traffic

A buddy team makes the following dive: 75' for 28 minutes with a surface interval of 3 hours and 45 minutes. What is their final repetitive group designation?

What could be considered a very dangerous use for a buoyancy compensating jacket?

What "air-sharing" technique would be considered to be the safest for the rescuer?

How does one avoid mask squeeze?

What is the most important skill to acquire as a scuba diver?

Why are weight belts put on a certain way, and what is the standard position for a weight belt ?

You should know the difference between the following ascents and when (and if) they would be used: Alternate air source ascent; Buddy-breathing (2 people sharing 1 regulator) ascent; Emergency swimming ascent at 1' per second while humming; Blow out all air and race to the surface

Scuba tanks have what information stamped near the top of the tank?

What happens to scuba tank if it is involved in a fire?

Rank the following parts of a scuba course in order of importance: Open Water Training; The written exam; Classroom Lecture; Pool Training

What should one do to prevent lung over-expansion while scuba diving

What is the main purpose for keeping at least 100 psi of air in a scuba tank?

As one descends, the length of allowable time to avoid decompression sickness gets moe or less?

A balloon is filled with 1 cubic feet of air and sealed at a depth of 66 feet before being released. What would be its volume in cubic feet at the surface (sea level)?

At approximately what depth in seawater is 5 Atm. (absolute) of pressure reached?

What is the maximum safe rate of ascent is (in feet/minute)?

Upon ascent (coming up) and descent what will happen to the air in a BC?

Do divers generally get heavier or lighter as they descend?

You are having trouble equalizing your ears during descent. What should you do?

Tanks should be visually inspected (VTI) how often under normal conditions?

Nitrogen, and only nitrogen, may cause 2 major underwater problems. What are they?

Define exactly what the term, "Bottom time" refers to.

What repetitive letter group would you be in after spending 63 minutes at 52'?

If you had a choice, especially if you were diving without a computer, which would be preferred? The shallower dive first in a repetitive 2-dive sequence; The deeper dive first in a repetitive 2-dive sequence

To officially have 2 scuba dives, how much time must elapse between them?

What is the first aid for a diver with air embolism or decompression sickness?

The most common form of vertigo is caused by?

What is the no-decompression limit for a dive to 85' for your first dive of the day (in minutes)?

A diver goes to 20 feet and remains there for 35minutes. He returns to the surface and puts on another scuba and enters the water immediately. He descends to 75 feet. His bottom time is 32 minutes. After decompressing the appropriate length of time, he remains on the surface for 3 hours and 27 minutes. The next dive is to 112 feet for a bottom time of 13 minutes.

The repetitive group the diver is in after leaving the water from the 75' dive is?

The repetitive group the diver is in after the surface interval is?

The repetitive group the diver is in after all the diving is over is?

The remedy for air starvation caused by rapid swimming is to do what?

What is one of the most common errors for a diver to commit when compass-navigating?

What concerns are to be ignored when an unconscious diver is brought to the surface?

When you suspect nitrogen narcosis in either yourself or your buddy, the best course of action is to do what?

     If you have trouble with any of the concepts related to the questions above, please refer to the appropriate chapters of this textbook!

Copyright Information about this text, DIVING WITH DEEP-SIX is as follows: Copyright 1996 - 2007 by George D. Campbell, III; President. All Rights Reserved. This file may be posted on Electronic Bulletin Boards for download, but may not be modified, printed for distribution, or used for any commercial purpose without the author's written permission. is using this material with the permission of Deep Six. The full version is available at:
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