SCBA Flashcards
What type of test must be passed before a member utilizes an SCBA?
SCBA- Department Policy Page 3
FIT Test
SCBA shall be inspected?
SCBA- Department Policy Page 4
-dialy upon assuming duty prior to use
-after use on an incident
-weekly with SCBA Sunday Sanitation Program
If lens or frames must be worn with the SCBA what must be ensured?
SCBADepartment Policy Page 3
Neither the lens or frame shall interfere with the proper seal of the facepiece.
When shall members don SCBA’s
SCBA Department Policy Page 4
When anticipating entry into oxygen deficient, toxic or otherwise hazardous atmospheres.
SBCA harness back frames that are sent for repair and service shall?
SCBA Department Policy Page 4
thoroughly cleaned before delivery to the Mask Room. All post fire debris & other contaminants are to be removed
After incident use what should be documented
SCBA Department Policy Page 4
-journal entry noting the number of SCBA used
-the approximate duration of use
-any malfunction
-any damage
How shall SCBA cylinders be transported
SCBA Department Policy Page 4
in an approved bracket or compartment
The overhaul stage of firefighting operations is often most hazardous in terms of
SCBA Department Policy Page 5
-exposure to toxic gases
-volatile organic vapors
-heavy metals
-carcinogenic chemicals
Only repairs to SCBA, Air cylinders and facepieces shall be performed by?
SCBA Department Policy Page 4
Authorized personnel in the Mask Room
Platoon and Company members are jointly responsible for ensuring that:
SCBA Department Policy Page 5
- Each on duty member is assigned a SCBA
-The Company has the appropriate number of additional SCBA available to meet the company needs.
After an incident where SCBA has been used, members are responsible for ensuring that the assigned SCBA is
SCBA Department Policy Page 5
-cleaned
-tested for serviceability
-restored to a condition of full readiness
Who is responsible for implementing a SCBA Sunday Sanitation Program? to include
SCBA Department Policy Page 5
-Company Commanders
-additional inspection of SCBA, facepiece and SCBA cylinder
-along with a thorough cleaning and disinfecting of each SCBA
How can SCBA be used under water
SCBA Department Policy Page 4
At no time shall SCBA be utilized for underwater use. Submersion will render the SCBA OOS
In the past years firefighter’s willingness to “eat smoke” was viewed as___. This approach to firefighting operations has been
SCBA-Chp 1-Respiratory Protection Page 1
-a measurement of courage.
-has been exposed as not only foolish, but extremely dangerous as well.
-firefighters are dying 8-10 yrs earlier than non firefighting peer group primarily due to exposure to poisonous gases
Name the combustion byproducts of smoke
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Volatile organic compounds [VOCs], toxic microscopic particulate matter, heavy metals (arsenic, chromium, mercury, lead, phosphorous, copper and carcinogen chemicals)
Fire Suppression activities exposure firefighters to?
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-the hazards of oxygen deficient atmospheres
-the by-products of the combustion process: heat, smoke and toxic gases
What are the by-products of the combustion process and what effect do they have on firefighters?
SCBA-Chp 1-Respiratory Protection Page 1
heat, smoke and toxic gases
an adverse effect not only on the firefighter’s performance but their long term health as well.
Exposure of the unprotected respiratory system to high heat levels can? Causing
SCBA-Chp 1-Respiratory Protection Page 1
damage the respiratory tract, leading to pulmonary edema or fluid collection in the lungs
asphyxiation, decreased blood pressure leading to failure of the circulatory system due to the collapse of capillary blood vessels
Firefighters should not enter atmospheric temps of? Result?
SCBA-Chp 1-Respiratory Protection Page 1
temps exceeding 120 degrees without PPE and Full respiratory protection.
even at these moderatre temperatures, inhaling one or two breaths of moisture-air (produced by a hose stream in a heated atmosphere) without serious consequences.
When burning occurs, ___ combines with ____ to do what?
SCBA-Chp 1-Respiratory Protection Page 2
fuels combines with oxygen and starts to deplete the oxygen content in a given area.
If oxygen content is unlimited when burning occurs
SCBA-Chp 1-Respiratory Protection Page 2
Most of the irritants are burned off, and relatively small amounts of Carbon Monoxide (C0), Carbon dioxide (CO2) and other compounds remain.
If oxygen content limited when burning occurs
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Large amounts of Formic acid, Acetic acid, Carbolic acid, and Ethyl alcohol, Carbon and Tar are produced.
The more incomplete the combustion process, the more dense and obscuring to the vision the smoke will be
FACET
Dense smoke not only obscures vision, casuing ____, but also acts as an _____
SCBA-Chp 1-Respiratory Protection Page 2
disorientation and panic
irritant to the unprotected membranes of the respiratory passages: nose, trachea, bronchial tubes and lungs
_______ is the leading cause of fire deaths in the civilian population? With what percent of casualties being caused by ______
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Inhalation of toxic fire gases
80 percent of all fire casualties are caused by toxic effects of fire gases before being touched by flame
The following fire gases are the primary cause of fire death, due to toxic gas inhalation
SCBA-Chp 1-Respiratory Protection Page 2
Carbon monoxide (CO)
Carbon dioxide (CO2)
Hydrogen Sulfide (H2S)
Sulfure Dioxide (SO2)
Hydrogen Cyanide (HCN)
Hydrogen Chloride (HO)
Phosgene (COCI2)
What is the color, odor, flammability and weight of Carbon Monoxide:
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colorless
odorless
flammable
slightly lighter than air
If there is oxygen available present for the combustion process what happens to the production of Carbon Monoxide?
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Carbon monoxide decreases
Carbon dioxide increases
If there is a smoldering oxygen-deficient fire for the combustion process, what happens to the production of Carbon Monoxide?
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Carbon monoxide increases
Carbon dioxide decreases
Explain the signs of symptoms of Carbon Monoxide at each level
When do you don SCBA
SCBA-Chp 1-Respiratory Protection Page 3
at 3200 PPM or .32%
unconsciousness after 30 min.
at 12,800 PPM or 1.28%
Unconsciousness immediately
death after 1-3 minutes.
exceeds 35 ppm
What is Carbon Dioxide most familiar to firefighters as?
SCBA-Chp 1-Respiratory Protection Page 3
an inert gas used in hand portable fire extinguishers
What is the color, odor, flammability, production process and the effect on the body of Carbon Dioxide:
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-Colorless
-odorless
-nonflammable gas
-produced by the combustion process
-Increases the rate of respirations due to CO2 from the blood stream into the lungs stimulating the respiratory center of the brain.
Explain the signs & symptoms of Carbon Dioxide and properties
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Normal at 300ppm .03%
5,000ppm .5%; there is a marked increase in respiration, along with dizzineess, sweating and mental excitement
100,000ppm to 200,000ppm 10% to 20% may cause death within a few minutes due to paralysis of the respiratory center in the brain
Explain the signs & symptoms of Hydrogen Sulfide and properties
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-incomplete combustion of material from living things: rubber, wool, hair
-colorless gas
-rotten eggs
-heavier than air
-corrosive, flammable and explosive
-very poisonous, affects the nervous system
-causes rapid breathing rate followed by complete respiratory collapse
Explain the signs & symptoms of Sulfur Dioxide
SCBA-Chp 1-Respiratory Protection Page 3
-Formed by the complete oxidation of sulfur containing materials: wool, rubber and some woods
-extremely irritating on eyes and respiratory tract
-quantity produced by the combustion process is too small to be considered toxic
Explain the signs and symptoms of Hydrogen Cyanide
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-highly toxic
-colorless gas
-produced by the incomplete combustion of nitrogen containing materials such as wool, nylon, polyurethane foam, rubber and paper.
-bitter almond odor
-causes gasping respiration, muscle spasms and increases heart rate
Explain the signs and symptoms of Hydrogen Chloride
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-colorless gas
-combustion of material containing chlorine
-Polyvinyl Chloride (PVC) is the most notable source of hydrogen chloride
-causing swelling of the upper respiratory tract by acting as an irritant to the heart muscle causing irregular heart rhythms
What type of household items contain PVC?
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-electrical insulation and conduit
-piping of interior water lines (bath, kitchen and laundry room)
-latex paints, floor coverings (both sheet goods and carpeting)
-appliance housings (tv, radios, stereos)
-clothing and furniture coverings
Hydrogen Chloride combined with moisture causes what?
SCBA-Chp 1-Respiratory Protection Page 4
-form hydrochloric acid
-can burn and blister the mucous membranes of the nose, linings of the lungs and the tissue of the mouth and throat.
Explain the signs and symptom of Phosgene?
SCBA-Chp 1-Respiratory Protection Page 4
-musty hay
-colorless gas
-produced when refrigerants such as freon (used in refrigerator, air conditioners and beverage coolers) come in contact with flame
Explain the signs and symptoms hydrochloric acid?
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-created when phosgene comes in contact with water
-burning and blistering caused
What is the earth’s atmosphere is composed of what?
SCBA-Chp 1-Respiratory Protection Page 5
21% oxygen
78% nitrogen
01% other gases
Explain Oxygen Deficient Atmosphere and who defines it
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OSHA CFR 1910.134
20.9% oxygen
Acceptable low oxygen as defined by OSHA exists 20.9% to 19.5%
Oxygen deficient atmosphere less than 19.5%
10% to 19.5% produces an increased breathing rate, accelerated heartbeat and impaired thinking and coordination
6% to 10% will cause nausea, vomiting, lethargy, ultimately leading to unconsciousness
less than 6% convulsion, cessation of breathing and cardiac arrest
What is oxyhemoglobin
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-Oxygen combined with Hemoglobin
-carries oxygen to cells tissue and organs of the body
What is carboxyhemoglobin
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-hemoglobin carrying carbon monoxide
-affects the tissues, cells and organs of the body
-Carbon monoxide unites with hemoglobin 210 times more readily than oxygen
What happens when carbon monoxide displaces oxygen in the body
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-Carbon dioxide starts to build up in the blood stream
-causes increased depth and frequency of inhalations when carbon dioxide reaches brain
Unless the incident area is immediately and thoroughly ventilated or the unprotected person leaves the contaminated area at once the following could take place
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-The exposed, unprotected person will start to feel dizzy, and their vision will become blurred.
-With CO and CO2 levels increasing, the color of their blood will change from red to blue due to the lack of oxygen
-Shortly after unconsciousness occurs, heart muscle will start to weaken, death will occur due to respiratory collapse or heart failure
What NFPA standard governs the Scott Air-Pak Fifty
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 1
-NFPA 1981, 2013 edition
-NFPA 1982, 2013 edition
What are the major components of the SCBA
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 1
-Cylinder and Cylinder Valve
-Harness and backframe, Dual EBBS w/ 3 foot hose, Drag Rescue Loop (DRL) and RIC/ UAC
-Pressure Reducer Assembly
-C5 Breathing Regulator: Vibralert, purge valve, auto air saver switch and heads up display
-Pak Alert Distress Alarm: Sensor module w/ Pak Tracker locator transmitter and Control Console with Remote Pressure Gauge
-3M Scott Vision C5 facepiece
What is the SCBA Cylinder made from
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 2
-an aluminum shell
-over wrapped with carbon fiber
-reinforced with epoxy resin
How often is the SCBA hydrostatically tested and by who’s regulations and what is the life span
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 2
-5 yrs
-Dept of Transportation
-15 yrs from the date of manufacture
What is the weight of the charged SCBA cylinder and The 3M Scott AP 75 5.5 Air-Pak assembly
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 2
-14 lbs is the charged carbon fiber-wrapped cylinder
-30 lbs for the entire assemble
-
What is the 45 min SCBA cylinder pressurized to and how my cubic feet does it contain
SCBA-Chp 2- 3M Scott Air-Pak 75 5.5, Pak Tracker, and Hand-Held Receiver Specs Page 2
-66 cubic feet of air
-pressurized to 5500 psi
-factors differ due to type of work preformed, the physical conditioning of the SCBA user and the fit of the SCBA facepiece. baseline breathing rate of 40 LPM est by NIOSH