Final

Question 1

An object immersed in water will be buoy upward by a force ______ the weight of the water it displaces

Answer 1

equal to

Question 2

Panic can be prevented by

• taking special training
• honestly evaluations your diving limitations
• properly maintaining your total diving system
• all the answers are correct

Answer 2

All the answers are correct

Question 3

A scuba tank for recreational diving should be filled with

• pure filtered compressed air or nitrox
• mixture of helium and oxygen
• pure oxygen
• a mixture of hydrogen and oxygen

Answer 3

Pure filtered compressed air or nitrox

Question 4

The most serious lung over expansion injury is

Subcutaneous emphysema
Arterial gas embolism
Mediastinal emphysema
Pneumothorax

Answer 4

Arterial gas embolism

Question 5

The term surface interval is defined as

• The amount of time the diver stays out of the water, or on the surface between dives
• Travel time to and from the dive site
• The amount of nitrogen expelled while on the surface
• The amount of time spent on the surface of the water between dives(excludes time out of the water)

Answer 5

Amount of time for diverse stays out of the water, or on the surface between dives

Question 6

Diving at altitude or flying after diving

• Require special diving computer functions, altitude tables, and or reframing from flying at least 24 hours after the completion of a dive
• Allows the diver to ignore the no decompression limits
• Does not require any special considerations for the diver
• Allows the diver to spend a greater amount of time at depth, without exceeding the no decompression limits

Answer 6

Requires special, diving computer, functions, altitude tables, and or reframing from flying from at least 24 hours after the completion of a dive

Question 7

In and out of air emergency if your buddy is close enough, you should

• perform an emergency buoyant ascent
• Swim to your buddy give the out of air signal and share air
• All answers are correct
• Perform an emergency swimming ascent

Answer 7

your buddy give the out of air signal and Share air

Question 8

Use of the my SSI logbook is important because

-It keeps an accurate record of your personal information and dives
- It is an important information resources for future dives.
- All answers are correct
- Did contained your medical history and provides important emergency information

Answer 8

All answers are correct

Question 9

Which of the statements, considering sound transmission underwater is correct
- Sound travels four times faster underwater than in here
- Divers find it difficult to locate the direction of a sound producing source
- All answers are correct
- Sound will travel further underwater than air

Answer 9

All answers are correct

Question 10

If a diver is injured by harmful sea, life, it is usually because of

The divers negligence
The divers aggressive behavior
All the answers are correct
The divers ignorance

Answer 10

All the answers are correct

Question 11

If you lose contact with your buddy, you should

• Exit the water at a predetermined location
• Service immediately
  
  • Continue in the direction you’re swimming for one minute and then surface
• Search for no more than a minute by turning 360° and looking up and down and then perform in normal assent to the surface

Answer 11

• search for no more than a minute by turning 360 and looking up and down and then perform a normal asset to the service

Question 12

Absolute pressure is defined as

• The pressure of the surface + one bar
  All the answers are correct
  The total pressure exerted on an object
  The weight of the water that surrounds a diver

Answer 12

The total pressure exerted on an object

Question 13

Overexpansion injuries can be prevented by

• Learning the correct breathing pattern reinforced in classroom, pool and open water training
• All the answers are correct
• Die with her properly maintained high-quality total diving system
• Never hold your breath while diving

Answer 13

All the answers are correct

Question 14

The first symptoms of a sinus squeeze is usually

• A crunching pain high in the chest
• Sharp pain on wending sensation above the eyes
• A sharp pain at the base of the neck
• A dull pain with in the head

Answer 14

A sharp pain or wedging sensation above the eyes

Question 15

Signs of a panicked diver are

• A diver heading towards the surface before the scheduled end of the dive
• Wide-eyed, fearful look and a fast erotic breathing pattern
• Slow and erotic movement underwater
• A diver giving the out of air sign one moving towards you

Answer 15

Wide eyed, fearful, look, and a fast and erotic reading pattern

Question 16

During normal diving activities, diver should never exceed an ascent rate of —— meters per minute

20
Nine
30
18

Answer 16

9

Question 17

The greatest relative pressure change in water takes place between —- and —- meters

30/60
0/10
20/40
10/20

Answer 17

0/10

Question 18

The most efficient breathing pattern for scuba diving is

• deep balanced inhalation, followed by a long balance, exhalation without any pause between inhaling and exhaling
• Short, shallow breaths
• Long slow inhalation, and faster exhalation
• Rapid inhalation and exhalation cycles

Answer 18

Deep balanced, inhalation, followed by a long balance, exhalation without any pause between inhalation and exhalation

Question 19

The first thing you should do if you observe signs of panic in a diver of the surface is

• Call for help
• Drop your weight belt
• Completely fill your BC and instruct a panic diver to establish positive buoyancy
• Swim to the panic diver and try to drop the divers weight belt

Answer 19

Completely fill your BC and instruct the panic diver to establish positive buoyancy

Question 20

Diver should avoid contact with all corals because

• All answers are correct
• Touching corals can damage your equipment
• Contact can damage the coral
• Contact could be harmful to the diver

Answer 20

All answers are correct

Question 21

In air at one bar, the partial pressure of nitrogen is —-oxygen is—-

-0.8/0.4 bar.
0.79/0.21 bar
0.21/0.79 bar.
1.5/0.8 bar

Answer 21

0.79/0.21.

Question 22

The term no decompression limit is defined as

• The maximum depth recorded during the dive
• The maximum allowed time at death without having to perform a mandatory decompression stop during the ascent
• The bottom time recorded during a dive
• The maximum surface interval, allowed during a Days diving

Answer 22

The maximum allowed time at temps without having to perform a mandatory decompression stop during the ascent

Question 23

Underwater, the bending of light rays causes objects to appear to be

• Closer
• Add an angle consistent with the band of light
• Further away
• The same as the surface

Answer 23

Closer

Question 24

Causes of panic include

• Diving outside a divers, comfort and ability
• Answers are correct
• Certain environmental conditions
• Using equipment that is unfamiliar. It does not fit well.

Answer 24

All the answers are correct

Question 25

The buoyancy control system components are - buoyancy compensator, inflation, device, and weight belt or bc weight pockets - Buoyancy compensator and inflammation device - Regulator, inflation, device, and weight belt or BC. Wait pockets. -Buoyancy, compensator, exposure, soot, and inflation device

Answer 25

Buoyancy, compensator, inflation, device, and weight belt or PC wait pockets

Question 26

If you experience pain in the ear during the descent - Stop the descent and ascent until the pain stops - Play sitting here in the ear canal and gently massage the year until the pain Caeses - Continue the descent while gently exhaling into the mask - Abort the dive

Answer 26

Stop the descent, and ascend until the pain stops

Question 27

The proper first aid for arterial gas, embolism, subcutaneous, emphysema, pneumothorax and mediastinal emphysema is - All answers are correct - seek proper first aid (recompression chamber) as quickly as possible - Administer oxygen - Watch vital signs treat for shock and standby to administer cardio pulmonary resuscitation

Answer 27

All answers are correct

Question 28

SSI responsible Diver code states that you should - be environmentally responsible on every dive - accept responsibility for your own well being on every dive - all answers are correct - dice within the limits of your training and ability

Answer 28

All answers are correct

Question 29

To use a compass to navigate to a sighed object - point the magnetic needle toward the object and swim - point the compress toward the object rotate the bezel until the witness marks are over the magnetic needle and follow the lubber line - point the witness marks toward the object and swim - point the lubber line toward the toward the object and swim - point the lubber line toward the object and swim

Answer 29

Point the compass toward the object rotate the bezel until the witness marks over the magnetic needle and follow the lubber line

Question 30

Sinus squeeze can be prevented by - the valsava technique - tilting the divers head back and forth - wearing earplugs - not diving in the cold

Answer 30

Not diving with a cold

Question 31

A dive computer keeps track of a divers nitrogen absorption levels so that the diver can - dive deeper than 30 meters - make decompression dives - avoid arterial gas embolism - stay within the no decomposition limits on each dive

Answer 31

Stay within the no decompression limits on each dive

Question 32

Under the ssi equipment service program your delivery system should be serviced and performance checked Every year

Answer 32

Every year

Question 33

Divers can help protect the marine environment by - maintaining neutral buoyancy at all times - always being a responsible diver - all answers are correct - keep equipment secured and no dangling

Answer 33

All answers are correct

Question 34

Residual nitrogen is defined as - the amount of excessive nitrogen dissolved in our blood stream and tissues at the beginning of the initial ascent to the surface - the amount of excessive nitrogen dissolved in our blood stream and tissues - the amount of nitrogen dissolved in our blood stream and tissues at the beginning of the first dive - 80% of the gas we breathe

Answer 34

The amount of excessive nitrogen dissolved in our blood stream and tissues after a dive

Question 35

Salts water weighs ___ kg per liter and freshwater weighs ___ kg per liter - 14.7/14.3 - 1.0/1.025 - they both weigh the same - 1.025/1.0

Answer 35

1.025/1.0

Question 36

Dive computers are essential for flanking and executing dives because they - all answers are correct - help divers stay within the no decomposition limits - record all pertinent information - monitor ascents and descents

Answer 36

All answers are correct

Question 37

A good diving buddy - all answers are correct

Answer 37

All answers are correct

Question 38

Gauge pressure is defined as - absolute pressure minus 1 bar - the pressure at the surface - the depth reading on a gauge - hydrostatic pressure minus 1 bar

Answer 38

Absolute pressure minus 1 bar