Final Flashcards
An object immersed in water will be buoy upward by a force ______ the weight of the water it displaces
equal to
Panic can be prevented by
- taking special training
- honestly evaluations your diving limitations
- properly maintaining your total diving system
- all the answers are correct
All the answers are correct
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
Pure filtered compressed air or nitrox
The most serious lung over expansion injury is
Subcutaneous emphysema
Arterial gas embolism
Mediastinal emphysema
Pneumothorax
Arterial gas embolism
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)
Amount of time for diverse stays out of the water, or on the surface between dives
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
Requires special, diving computer, functions, altitude tables, and or reframing from flying from at least 24 hours after the completion of a dive
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
your buddy give the out of air signal and Share air
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
All answers are correct
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
All answers are correct
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
All the answers are correct
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
- search for no more than a minute by turning 360 and looking up and down and then perform a normal asset to the service
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
The total pressure exerted on an object
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
All the answers are correct
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
A sharp pain or wedging sensation above the eyes
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
Wide eyed, fearful, look, and a fast and erotic reading pattern
During normal diving activities, diver should never exceed an ascent rate of —— meters per minute
20
Nine
30
18
9
The greatest relative pressure change in water takes place between —- and —- meters
30/60
0/10
20/40
10/20
0/10
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
Deep balanced, inhalation, followed by a long balance, exhalation without any pause between inhalation and exhalation
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
Completely fill your BC and instruct the panic diver to establish positive buoyancy
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
All answers are correct
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
0.79/0.21.
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
The maximum allowed time at temps without having to perform a mandatory decompression stop during the ascent
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
Closer
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.
All the answers are correct
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
Buoyancy, compensator, inflation, device, and weight belt or PC wait pockets
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
Stop the descent, and ascend until the pain stops
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
All answers are correct
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
All answers are correct
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
Point the compass toward the object rotate the bezel until the witness marks over the magnetic needle and follow the lubber line
Sinus squeeze can be prevented by
- the valsava technique
- tilting the divers head back and forth
- wearing earplugs
- not diving in the cold
Not diving with a cold
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
Stay within the no decompression limits on each dive
Under the ssi equipment service program your delivery system should be serviced and performance checked
Every year
Every year
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
All answers are correct
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
The amount of excessive nitrogen dissolved in our blood stream and tissues after a dive
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
1.025/1.0
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
All answers are correct
A good diving buddy
- all answers are correct
All answers are correct
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
Absolute pressure minus 1 bar
