SCBA Flashcards
1
Q
Contact lenses may be worn with the SCBA. When the use of corrective lenses is required during SCBA use, what will be required?
A
Neither the lens nor the frame shall interfere with the proper seal of the facepiece.
SCBA Manual Department Policy pg. 3
2
Q
Each on-duty member in the Operations Division shall be assigned a SCBA. What shall happen if each on-duty member does not have a properly functioning SCBA?
A
The company shall be placed out of service. Replacement SCBA shall be obtained, inspected, and tested before the company is placed back in service.
SCBA Manual Department Policy pg. 3
3
Q
SCBA shall be inspected when?
A
- daily upon a member assuming duty prior to use
- after use on an incident, and
- weekly in conjunction with the SCBA Sunday Sanitation Program.
SCBA Manual Department Policy pg. 4
4
Q
Members shall don SCBA when?
A
anticipating entry into oxygen-deficient, toxic, or otherwise hazardous atmospheres. Member shall don and use SCBA until the contaminated area is properly and adequately ventilated.
SCBA Manual Department Policy pg. 4
5
Q
SCBA shall be used during the overhaul stage of the fire incident to prevent what?
A
injuries and health risks resulting from the exposure to toxic atmospheres.
SCBA Manual Department Policy pg. 4
6
Q
SCBA harness and back frames that are sent for repair and service shall be what?
A
cleaned thoroughly cleaned before delivery to the Mask Room. All post-fire debris and other contaminants are to be removed.
SCBA Manual Department Policy pg. 4
7
Q
SCBA shall not be used in underwater activities. Doing so will do what to the SCBA?
A
Submersion shall render the SCBA out of service.
SCBA Manual Department Policy pg. 4
8
Q
Who will perform repairs on SCBAs, air cylinders, and facepieces?
A
Only authorized personnel in the Mask Room.
SCBA Manual Department Policy pg. 4
9
Q
Members are responsible for understanding that the overhaul stage of firefighting operations is often the most what?
A
hazardous in terms of exposure to toxic gases, volatile organic vapors, heavy metals, and carcinogenic chemicals.
SCBA Manual Department Policy pg. 5
10
Q
Regarding SCBA, Platoon Commanders and company members are jointly responsible for ensuring that what?
A
- Each on-duty member is assigned a SCBA.
- The Company has the appropriate number of additional SCBA available to meet the company’s needs.
SCBA Manual Department Policy pg. 5
11
Q
Who is responsible for implementing a SCBA Sunday Sanitation Program? What does the program include?
A
Company Commanders, The Sunday Sanitation Program shall include an additional inspection of the SCBA, facepiece, and SCBA cylinder, along with a thorough cleaning and disinfecting of each SCBA.
SCBA Manual Department Policy pg. 5
12
Q
Recent statistics have shown that firefighters are dying on the average of ____ to ___ years earlier than their non-firefighting peer group, primarily due to the exposure to _____ _____.
A
eight to ten, poisonous gases.
SCBA Manual Ch. 1 pg. 1
13
Q
Fire suppression activities expose firefighters to the hazards of oxygen-deficient atmospheres and the by-products of the combustion process, which are what?
A
heat, smoke, and toxic gases.
SCBA Manual Ch. 1 pg. 1
14
Q
Exposure of the unprotected respiratory system to high heat levels can damage the respiratory tract, leading to pulmonary edema, or fluid collection in the lungs. This fluid can kill by what?
A
Asphyxiation, or causes a decrease in blood pressure, which leads to the failure of the circulatory system due to the collapse of capillary blood vessels.
SCBA Manual Ch. pg. 1
15
Q
Firefighters should not enter atmospheres that have temperatures exceeding __ degrees Fahrenheit without protective clothing and ____ respiratory protection.
A
120, FULL
SCBA Manual Ch. 1 pg. 1
16
Q
What is the leading cause of fire deaths in the civilian population?
A
The inhalation of toxic fire gases. It is estimated that 80 percent of all fire casualties succumb to the toxic effects of fire gasses before ever being touched by flame
SCBA Manual Ch. 1 pg. 2
17
Q
What gases are the primary cause of fire death due to toxic gas inhalation?
A
carbon monoxide (CO), carbon dioxide (CO), sulfur dioxide (SO2), hydrogen sulfide (H2S), hydrogen cyanide (HCN), hydrogen cholride (HO), and phosgene (COCI1)
SCBA Manual Ch. 1 pg. 2
18
Q
Studies into the hazardous properties of fire gases have shown that what is the primary cause of fire deaths?
A
Toxic gas inhalation of carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), sulfur dioxide (SO2), hydrogen cyanide (HCN), hydrogen chloride (HO), and phosgene (COCI2).
SCBA Manual Ch. 1 pg. 2
19
Q
Carbon monoxide is a
A
colorless, odorless, flammable gas, and is slightly lighter than air.
SCBA Manual Ch. 1 pg. 3
20
Q
The production of carbon monoxide is dependent upon the amount of oxygen available for burning. If oxygen is present for the combustion process, the production of carbon monoxide _____ and the production of carbon dioxide _____. In a smoldering oxygen-deficient fire this ratio reverses, and a ______ amount of _____ _____ rather than _____ _____ is produced.
A
decreases, increases, greater, carbon monoxide, carbon dioxide
SCBA Manual Ch. 1 pg. 3
21
Q
At concentrations of _____ parts per million (ppm), or __ percent, carbon monoxide is an extremely lethal gas, causing unconsciousness after a ____ minute exposure.
A
3,200, .32, thirty,
SCBA Manual Ch. 1 pg. 3
22
Q
When the concentration of carbon monoxide rises to slightly more than ____ ppm (1.28 percent), unconsciousness occurs immediately upon exposure, with death following in ___ to ___ minutes.
A
12,800, one, three
SCBA Manual Ch. 1 pg. 3
23
Q
Department Standards dictate that the SCBA will be utilized when the concentration of carbon monoxide exceeds __ (____).
A
35 ppm (.0035 percent)
SCBA Manual Ch. 1 pg. 3
24
Q
Carbon Dioxide is a
A
colorless, odorless, nonflammable gas, is produced by the combustion process
SCBA Manual Ch. 1 pg. 3
25
The normal concentration of carbon dioxide in the atmosphere is ___(____).
300 ppm, (.03 percent)
SCBA Manual Ch. 1 pg. 3
26
When carbon dioxide at ____ (___) concentration is breathed in, there is a marked increase in respiration, along with dizziness, sweating, and mental excitement.
5,000 ppm (.5 percent)
SCBA Manual Ch. 1 pg. 3
27
Concentrations of carbon dioxide from _____ to _____ (___ to ___) may cause death within a few minutes due to paralysis of the respiratory center in the brain.
100,000 to 200,000 ppm, (10 to 20 percent)
SCBA Manual Ch. 1 pg. 3
28
The incomplete combustion of material from living things, such as wool, rubber, and hair yields ____ _____.
hydrogen sulfide
SCBA Manual Ch. 1 pg. 3
29
Hydrogen sulfide is produced by the incomplete combustion of what?
Incomplete combustion of living things, such as wool, rubber, and hair.
SCBA Manual Ch. 1 pg. 3
30
Hydrogen sulfide is a _______ ____ with the characteristic foul odor of "____ ____"; it is heavier than air, very poisonous, corrosive, flammable and explosive.
colorless gas, "rotten eggs"
SCBA Manual Ch. 1 pg. 3
31
Hydrogen sulfide affects which system?
The nervous system. Exposure to hydrogen sulfide causes a rapid breathing rate followed by complete respiratory collapse.
SCBA Manual Ch. 1 pg. 3
32
How is sulfur dioxide formulated?
By the complete oxidation of sulfur-containing materials such as wool, rubber, and some woods
SCBA Manual Ch. 1 pg. 3
33
Sulfur dioxide has an extremely irritating effect on what?
The eyes and respiratory tract, however, the quantity produced by the combustion process is too small to be considered toxic.
SCBA Manual Ch. 1 pg. 3
34
Hydrogen cyanide is a
highly toxic, colorless gas produced by the incomplete combustion of nitrogen containing materials such as wool, nylon, polyurethane foam, rubber, and paper.
SCBA Manual Ch. 1 pg. 4
35
Hydrogen cyanide has a noticeable
"bitter almond" odor, can cause gasping respiration, muscle spasms, and an increased heart rate.
SCBA Manual Ch. 1 pg. 4
36
Hydrogen chloride is a
colorless gas produced by the combustion of materials containing chlorine.
SCBA Manual Ch. 1 pg. 4
37
____ ____ ____ is the most notable source of hydrogen chloride due to its use as electrical insulation and conduit, as well as for the piping of interior water lines (bath, kitchen, laundry room, etc.) Where may it also be found?
Polyvinyl chloride (PVC), PVC may also be found in latex paints, floor coverings (both sheet goods and carpeting), appliance housings (televisions, radios, and stereos), clothing, and furniture coverings.
SCBA Manual Ch. 1 pg. 4
38
Hydrogen chloride affects the human body how?
Causing swelling of the upper respiratory tract, by acting as an irritant to the heart muscle, and by causing irregular heart rhythms.
SCBA Manual Ch. 1 pg. 4
39
_____ is a colorless gas produced when refrigerants, such as Freon, used in refrigerators, air conditioners, and beverage coolers come in contact with flame.
Phosgene
SCBA Manual Ch. 1 pg. 4
40
Phosgene has a "____ ____" odor, which serves as the only indication of its presence.
"musty hay"
SCBA Manual Ch. 1 pg. 4
41
Phosgene decomposes into hydrochloric acid when it contact with water. How will this injure an unprotected firefighter?
The lungs and bronchial tubes are always moist, damage in the form of burning and blistering to these areas.
SCBA Manual Ch. 1 pg. 4
42
Dioxins are formed when what happens?
When products containing carbon and chlorine burn, especially plastic, paper, pesticides, herbicides, or other products where chlorine is used in the manufacturing process.
SCBA Manual Ch. 1 pg. 5
43
Dioxin can do what to the body?
Can cause congenital malformations, spontaneous miscarriages, and a fatal, slow-wasting syndrome similar to AIDS. Dioxin is strongly suspected of contributing to the pathology of the urinary and hematological systems, growths in the colon, gallbladder complications, multiple myeloma, lung, larynx, and prostate cancer.
SCBA Manual Ch. 1 pg. 5
44
Normal-fresh air exists at ____ oxygen concentration in the atmosphere.
20.9%
SCBA Manual Ch. 1 pg. 5
45
OSHA CFR 1910.134 defines an oxygen-deficient atmosphere as one with an oxygen concentration of less than what?
19.5%
SCBA Manual Ch. 1 pg. 5
46
An oxygen concentration of 10%-19.5% causes what?
An increased breathing rate, accelerated heartbeat, impaired thinking and coordination.
SCBA Manual Ch. 1 pg. 5
47
An oxygen concentration of less than 6% causes what?
Convulsions, cessation of breathing, and cardiac arrest.
SCBA Manual Ch. 1 pg. 5
48
An oxygen concentration of 6%-10% causes what?
Nausea, vomiting, and lethargy, ultimately leading to unconsciousness.
SCBA Manual Ch. 1 pg. 5
49
Carbon monoxide unites with hemoglobin ___ times more readily than oxygen does.
210
SCBA Manual Ch. 1 pg. 6
50
When carbon monoxide displaces oxygen in the body, carbon dioxide starts to build up in the bloodstream. When carbon dioxide reaches the brain, what happens?
It stimulates the respiratory center and causes an increase in the depth and frequency of inhalations. Any increase in respiration at this time will cause a sharp decrease in the body's oxygen level with a corresponding increase in carbon monoxide and carbon dioxide.
SCBA Manual Ch. 1 pg. 6
51
With the amount of oxygen in the blood decreasing, the amount of carbon monoxide increasing, and carbon dioxide signaling the brain to increase respiration, persons without respiratory protection have placed themselves in a serious, life-threatening situation. Unless the incident area is immediately and thoroughly ventilated, or the unprotected person leaves the contaminated area at once, the following could take place:
1. The exposed, unprotected person will start to feel dizzy, and their vision will become blurred. With carbon monoxide and carbon dioxide levels increasing, the color of their blood will change from red to blue due to the lack of oxygen. In a short time, disorientation and unconsciousness will occur.
2. Shortly after unconsciousness occurs, the heart muscle will start to weaken, and eventually death will occur due to respiratory collapse or heart failure.
SCBA Manual Ch. 1 pg. 6
52
Firefighters of the District of Columbia Fire & EMS Department are equipped with what SCBA?
3M Scott AP 75 5.5 Self-Contained Breathing Apparatus (SCBA)
SCBA Manual Ch. 2 pg. 1
53
The 3M Scott AP 75 5.5 SCBA has been upgraded and conforms to what?
National Fire Protection Association (NFPA) 1981, 2013 edition, and NFPA 1982, 2013 edition.
SCBA Manual Ch. 2 pg. 1
54
The 3M Scott AP 75 5.5 SCBA consists of the following major components:
1. Cylinder and cylinder valve
2. Harness and back-frame, Dual EBSS (buddy breathing) with three feet of hose, and RIC/UAC
3. Pressure Reducer Assembly
4. C5 breathing regulator: Vibralert Alarm, purge valve, auto-saver switch, and heads-up display
5. Pak-Alert Distress Alarm: Sensor module with a built-in Pak-Tracker locator transmitter and Control Console with Remote Pressure Gauge
6. 3M Scott Vision C5 Facepiece
SCBA Manual Ch. 2 pg. 1
55
The 3M Scott AP 75 5.5 SCBA is supplied by a composite air supply cylinder made from what?
An aluminum shell overwrapped with carbon fiber. These fiber-reinforced cylinders represent an optimum lightweight approach to cylinder design.
SCBA Manual Ch. 2 pg. 2
56
U.S. Department of Transportation (D.O.T.) regulations require that a hydrostatic test is performed on composite cylinders every _ (_) ____ by a certified testing facility. The life span of a composite cylinder is _____ (__) ____ from date of manufacture.
five (5) years, fifteen (15) years
SCBA Manual Ch. 2 pg. 2
57
According to the manufacturer, the weight of a charged carbon fiber-wrapped cylinder is ___ lbs. When installed in the NFPA 1981, 2013 Edition compliant 3M Scott AP 75 5.5 Air-Pak assembly, the weight is ___ lbs.
14, 30
SCBA Manual Ch. 2 pg. 2
58
A 45-minute rated composite cylinder contains ___ __ ____ of air when pressurized to _____.
66 cubic feet, 5,500 psi.
SCBA Manual Ch. 2 pg. 2
59
A 45-minute rating time calculation is based on what?
Baseline breathing rate of 40 LPM (liters per minute) established by NIOSH.
SCBA Manual Ch. 2 pg. 2
60
The cylinder is equipped with a cylinder valve assembly, which controls the flow of air into and from the cylinder. The cylinder valve consists of what?
A shut-off, a safety relief device (a frangible copper disc), and a pressure gauge.
SCBA Manual Ch. 2 pg. 2
61
The rubber/plastic bumper at the base of the cylinder valve assembly contains what?
A radio frequency identification (RFID) chip which logs information pertaining to the cylinder, such as fill date, fill time, fill location, member ID who filled cylinder, manufacture date, and last hydrostatic date.
SCBA Manual Ch. 2 pg. 2
62
The threaded portion of the cylinder valve is designed to prevent the accidental hook-up of a high-pressure (5,500psi) cylinder to a low-pressure system. What will happen should a high-pressure cylinder be attached to a low-pressure system?
Two bleed holes are located at the base of the threaded outlet to allow air to vent to the atmosphere.
SCBA Manual Ch. 2 pg. 2
63
Composite air cylinders must be hydrostatically tested every how many years to meet whose requirements?
five (5) years, Department of Transportation
SCBA Manual Ch. 2 pg. 2
64
The harness and back-frame assembly are designed to carry the weight of the SCBA on the wearer's what and why?
hips, to reduce fatigue
SCBA Manual Ch. 2 pg. 3
65
The identification for the harness is found where?
On a metal identification tag attached to the top of the back frame and on a sticker on the bottom of the breathing regulator.
SCBA Manual Ch. 2 pg. 3
66
The harness back frame will have a dog tag ID affixed to with what?
The unit that the back-frame and the position that it is assigned. Units will be identified accordingly (E-30-1, T-17-3, RS-3-5, etc.)
SCBA Manual Ch. 2 pg. 3
67
Each SCBA back-frame is identified according to riding position by a what and where is it located?
By a photoluminescent identifier affixed to the right shoulder strap and the cylinder retention strap. These locations allow the wearer to be identified from the front or back.
SCBA Manual Ch. 2 pg. 4
68
SCBA Identifier, An officer's identifier will have what?
Will have the unit ID in color according to the apparatus type with a photoluminescent background.
SCBA Manual Ch. 2 pg. 4
69
SCBA identifier, The firefighter positions are identified by what?
A photoluminescent unit number with a colored background according to the apparatus type.
SCBA Manual Ch. 2 pg. 4
70
The Control Console with Remote Pressure Gauge assembly is located on the ___ _____ ____.
right shoulder strap.
SCBA Manual Ch. 2 pg. 5
71
The regulator and Heads-Up Display connector are located on the ___ ____ ____ and can be utilized in emergency situations.
left shoulder strap
SCBA Manual Ch. 2 pg. 5
72
Attached on the ____ side of the integral waist pad is a storage pouch that is used to store the Dual Emergency Breathing Support System (EBSS) and what?
left, 36" of hose
SCBA Manual Ch. 2 pg. 5
73
To connect the low-pressure hose with quick disconnect, what must happen?
The user MUST align the heads-up display electrical connection.
SCBA Manual Ch. 2 pg. 5
74
On the base of the harness on the ___ ___ is the quick charge, Rapid Intervention Crew/Company Universal Air Connection (RIC/UAC) System which is covered by what and used when?
left side, a dust cap, and is to be utilized during emergency situations.
SCBA Manual Ch. 2 pg. 6
75
The RIC/UAC is for emergency use only. Improper use of the system may lead to what?
A malfunction of the equipment which could cause serious injury or death
SCBA Manual Ch. 2 pg. 6
76
The pressure reducer assembly is located on the ___ ___ of the backframe, and consists of an aluminum housing containing redundant dual path reducing systems (primary and secondary reducing circuits), an automatic transfer valve, and an over pressure relief valve.
left side
SCBA Manual Ch. 2 pg. 7
77
The pressure reducer assembly is located on the left side of the back-frame and consists of what?
An aluminum housing containing redundant dual path reducing systems, (primary and secondary reducing circuits), an automatic transfer valve, and an over-pressure relief valve.
SCBA Manual Ch. 2 pg. 7
78
The primary reducing circuit reduces the air pressure to _____, and air is sent through the low pressure hose to the mask-mounting breathing regulator where it is further reduced in pressure.
100 psi
SCBA Manual Ch. 2 pg. 7
79
When the air pressure remaining in the cylinder falls to ____ of the full pressure (_____) or the primary pressure-reducing circuit fails in the _____ ____, a transfer valve opens allowing the secondary pressure-reducing circuit to function.
33%, 1,800 psi, closed position.
SCBA Manual Ch. 2 pg. 7
80
The secondary pressure-reducing circuit reduces the pressure of the air flowing from the cylinder to the mask-mounted breathing regulator from cylinder pressure to ____. The extra ___ supplied by the secondary pressure-reducing circuit activates the ____ ____, an audible end-of-service time indicator.
150 psi, 50 psi, Vibralert Alarm
SCBA Manual Ch. 2 pg. 7
81
What will happen should the primary reducing circuit fail in the open position?
The over-pressure relief valve vents excess pressure to the atmosphere to protect the low-pressure hose and breathing regulator from pressure over 225psi. Air will continue to flow to the breathing regulator, the Vibraalert alarm will activate, and there will be a loud sound of escaping air.
SCBA Manual Ch. 2 pg. 7
82
In the event the primary reducing circuit fails in the open position and the secondary reducing circuit opens, air at over ___ __ to enter the outlet manifold, the relief valve on the outlet manifold will open. This limits what?
225psi, The air pressure supplied to the low-pressure hose and breathing regulator (180-225 psi).
SCBA Manual Ch. 2 pg. 7
83
Vibralert alarm is an
Audible and tactile End of Service Life Indicator (EOSTI) that warns the user that less than 33% of the full pressure (1,800 psi) remains in the air supply cylinder.
SCBA Manual Ch. 2 pg. 7
84
The mask-mounted C5 breathing regulator contains the following components:
1. Air Saver Switch
2. Spray Bar
3. Purge valve
4. Vibralert Alarm
5. Heads-up display
SCBA Manual Ch. 2 pg. 8
85
With the facepiece properly sealed to the face, the breathing regulator produces a pressure of approximately ___ to ____ above atmospheric pressure inside the facepiece.
.036, .054
SCBA Manual Ch. 2 pg. 8
86
The auto air-saver switch is located where?
On the right side of the mask-mounted breathing regulator.
SCBA Manual Ch. 2 pg. 8
87
The regulator is equipped with a spray bar, comprised of __ _____ in the upper part of the regulator assembly. What is their purpose?
9 holes, When a user breathes in, air passes through the spray bar and is directed towards the lens, helping to keep the facepiece clear of condensation.
SCBA Manual Ch. 2 pg. 8
88
The red knob located on the ____ side of the mask-mounted breathing regulator is the ____ ______.
red knob, purge valve
SCBA Manual Ch. 2 pg. 9
89
The purge valve does what?
A manual flow control used to bypass the internal mechanisms of the breathing regulator in the event of a breathing regulator failure.
SCBA Manual Ch. 2 pg. 9
90
During normal operation of the unit, the purge valve shall be in the OFF position, with the indicator on the knob pointing to the ____ __ ______ position.
twelve-o'clock
SCBA Manual Ch. 2 pg. 9
91
A constant flow of at least __ ___ ___ ____ ____ (__ ______ ___ ____), can be obtained by rotating the knob on half turn counterclockwise. (Purge valve)
4.4 cubic feet per minute (125 liters per minute)
SCBA Manual Ch. 2 pg. 9
92
The Vibralert Alarm, in normal operations, is what?
An audible and tactile warning device that signals the user by noise and vibration that the air supply remaining in the cylinder is less than 33 percent of the rated capacity of the cylinder. (1,800 psi)
SCBA Manual Ch. 2 pg. 9
93
If the Vibralert alarm is activated but you have more than 1,800 psi remaining, what could be the cause?
1. The primary reducing circuit has failed closed, and the secondary pressure-reducing circuit is now in operation.
2. The primary reducing circuit has failed open, and air more than 225 psi has entered the outlet manifold. In this case, the relief valve on the outlet manifold will open and there will be a loud sound of escaping air.
SCBA Manual Ch. 2 pg. 9
94
If the Vibralerty Alarm activates when the SCBA is in use, what must the wearer do?
The wearer must immediately notify their Officer and/or partner and must immediately leave the contaminated atmosphere
SCBA Manual Ch. 2 pg. 9
95
The Mask Mounted Regulator shall be stowed where?
In the regulator holder on the SCBA waste belt and not allowed to hang unsecured.
SCBA Manual Ch. 2 pg. 9
96
The heads-up display provides what?
A visual monitor of the air supply in the cylinder and valve assembly.
SCBA Manual Ch. 2 pg. 10
97
The heads-up display consists of four rectangular lights to represent what? And a fifth battery-shaped red light found where indicates what?
cylinder pressure, found to the right Low Battery.
SCBA Manual Ch. 2 pg. 10
98
When the 3M Scott AP 75 5.5 SCBA is turned on, the heads-up display will initialize and illuminate what?
All five (5) lights for twenty (20) seconds. Operation of all five lights is to be verified each time the SCBA is placed in service.
SCBA Manual Ch. 2 pg. 10
99
After initializing, the rectangular lights will show the level of the air supply in the cylinder as follows:
A. Full
B. Three-Quarters
C. One-Half
D. One-Third
A. cylinder is indicated by the two (2) green lights glowing near the center of the display.
B. cylinder is indicated by a single green light.
C. cylinder is indicated by the yellow light flashing slowly at once a second.
D. cylinder end of service time indicator is indicated by the red light at the far left of the display rapidly flashing at ten (10) times a second.
SCBA Manual Ch. 2 pg. 10
100
If a red light at the far left of the display is rapidly flashing ten (10) times a second, what must the wearer do?
The wearer must notify their Officer or partner, and must immediately leave the contaminated atmosphere.
SCBA Manual Ch. 2 pg. 10
101
The Control Console with Remote Pressure Gauge assembly is located on the ___ ______ strap of the 3M Scott AP 75 5.5 SCBA.
right shoulder
SCBA Manual Ch. 2 pg. 11
102
It consists of an angled air supply gauge, manual alarm button, reset button, and a console lens with ____ and ____ flashing signal lights. It is also equipped with what?
red, green, a backlit mechanical gauge to permit easy viewing in dark conditions. The photodiode sensor is installed to detect ambient light conditions to either dim or brighten the HUD lights.
SCBA Manual Ch. 2 pg. 11
103
The Control Console with Remote Pressure Gauge is used to monitor what?
The air remaining in the air supply cylinder, and to control the functions of the Pak-Alert Distress Alarm.
SCBA Manual Ch. 2 pg. 11
104
The 3M Scott AP 75 5.5 SCBA, as required by NFPA 1982, is equipped with a Data Logging feature. The Data Loggin feature records the date and time of the most recent _____ events. It maintains a running log of what else?
1,000, start-up, sending to pre-alarm, pre-alarm to full alarm, manual reset, manual alarm, low battery, and sense to off.
SCBA Manual Ch. 2 pg. 11
105
To avoid radio frequency interference members shall keep antennas of hand held radios at least _____ ____ away from the Control Console with Remote Pressure Gauge, and the Sensor Module of the Pak-Alert SE distress alarm.
six (6) inches
SCBA Manual Ch. 2 pg. 11
106
If the motion sensor does not sense motions of the SCBA for __ ______, the Pak-Alert SE will signal a pre-alarm condition. If there is still no motion of the SCBA in the next __ ____, the full alarm will sound.
20 seconds, 12 seconds
SCBA Manual Ch. 2 pg. 12
107
Once activated in monitoring mode, the Scott Pak-Alert will remain activated until:
The respirator air cylinder is turned off with the residual air pressure purged from the SCBA.
And
The reset button on the control module has been pressed twice.
SCBA Manual Ch. 2 pg. 12
108
With fresh alkaline batteries, the Pak-Alert will stay in monitoring mode (green flashing light with no sound) for about ___ ____. With fresh alkaline batteries, the Pak-Alert will last in full alarm (red flashing light) for about __ ____.
1,000 hours, 8 hours
SCBA Manual Ch. 2 pg. 12
109
The 3M Scott AP 75 5.5 SCBA is certified for use with what?
The 3M Scott Vision C5 facepiece.
SCBA Manual Ch. 2 pg. 14
110
Facepieces are issued to each member of the Department in one of three sizes:
Small, Medium, and Large.
SCBA Manual Ch. 2 pg. 14
111
The differences between the sizes of a facepiece are determined by what?
The rubber gasket, as the polycarbonate lens is the same for all facepiece sizes.
SCBA Manual Ch. 2 pg. 14
112
The 3M Scott Vision C5 facepieces are composed of what?
A hard-coated polycarbonate lens bonded to a natural rubber blend seal, two speaking diaphragms, a nose cup, and a four-point yellow Kevlar head harness.
SCBA Manual Ch. 2 pg. 14
113
To transmit on a portable radio when wearing the 3M Scott Vision C5 facepieces, place the radio microphone about ___ away from, and __ ____ with a speaking diaphragm, and speak normally.
1/2 inch, in line
SCBA Manual Ch. 2 pg. 14
114
If a defective facepiece cannot be immediately repaired, who must be contacted and why?
The on-duty Safety Battalion Chief for a loaner facepiece.
SCBA Manual Ch. 2 pg. 14
115
The Pak-Tracker Locator System is a two-part electronic system consisting of what?
A radio transmitter integrated into the Scott Pak-Alert distress alarm and a directional receiver (Hand-Held Receiver or HHR) that is used to locate signals coming from the transmitter.
SCBA Manual Ch. 2 pg. 15
116
SCBA equipped with the SCOTT Pak-Tracker Locator System can be identified by what?
two red covers on the Sensor Module
SCBA Manual Ch. 2 pg. 15
117
The Pak-Tracker HHR can detect a signal up to __ __ ____ in a straight line of sight and has the capability of penetrating through very thick smoke in a structure fire.
nine hundred feet (900')
SCBA Manual Ch. 2 pg. 15
118
Each Pak-Tracker Locator Transmitter has been programmed to transmit a code that enables search teams to identify up to ___ ____(__) locator transmitters in alarm mode.
thirty-six (36)
SCBA Manual Ch. 2 pg. 15
119
The Pak-Tracker Handheld Receiver consists of the following components;
1. A large two-line LCD Panel that can display two transmitted IDs simultaneously when there are two locator transmitters in alarm.
2. A numerical signal strength display showing % signal received.
3. Two large startup buttons. The left button (Scroll) is for scrolling through multiple signals and the right button (Enter) is for locking on a particular locator transmitter that is in alarm mode.
4. Lighted bars that act as a visual representation of signal strength while searching for the direction of a signal.
5. A low battery light.
SCBA Manual Ch. 2 pg. 16
120
The Pak-Tracker transmitter is inside what?
The sensor module assembly with the motion sensor, the audible alarm, and six "AA" batteries.
SCBA Manual Ch. 2 pg. 17
121
The sensor module is outfitted with sensor module lights. Startup PASS (Open Cylinder) will show what color?
Bright Light then Flash Green
SCBA Manual Ch. 2 pg. 17
122
The sensor module is outfitted with sensor module lights. If the Cylinder is in normal operation what color light will be displayed?
Flash Green.
SCBA Manual Ch. 2 pg. 17
123
The sensor module is outfitted with sensor module lights. Cylinder Low air (1/3 cylinder) will show what color?
Flash Orange (alternating)
SCBA Manual Ch. 2 pg. 17
124
The sensor module is outfitted with sensor module lights. Low Battery while ON will show what color?
Flash Orange once a second
SCBA Manual Ch. 2 pg. 17
125
The sensor module is outfitted with sensor module lights. Shut down will show what color?
Lights OFF
SCBA Manual Ch. 2 pg. 17
126
The sensor module is outfitted with sensor module lights. Press RESET w/unit OFF (BATTERY TEST) will show what color?
Bright Light then: Flash Green if Good/Flash Red if bad
SCBA Manual Ch 2 pg. 17
127
The sensor module is outfitted with sensor module lights. Press Manual Alarm with unit OFF will show what color?
Flash Green then Full Alarm Flash Red
SCBA Manual Ch. 2 pg. 17
128
The sensor module is outfitted with sensor module lights. Press Reset from manual alarm will show what color?
Returns to Flash Green
SCBA Manual Ch. 2 pg. 17
129
The sensor module is outfitted with sensor module lights. PASS Pre-Alarm will show what color?
Flash Red (alternately)
SCBA Manual Ch. 2 pg. 17
130
The sensor module is outfitted with sensor module lights. PASS Full Alarm will show what color?
Flash Red (simultaneously)
SCBA Manual Ch 2 pg. 17
131
Inspect and test the 3M Scott Safety Pak-Tracker Locator System when? If any malfunction of the Pak-Tracker Locator System is noted during the inspection, remove the equipment from service, tag the equipment, and do what?
Before each use, Return to the Mask Room
SCBA Manual Ch. 2 pg. 18
132
To turn on the Pak-Tracker Handheld Reciever what must be done?
Press both the Select and Scroll buttons simultaneously. Verify that the unit powers up and that all lights and displays operate properly.
SCBA Manual Ch. 2 pg. 18
133
The Handheld Receiver is powered and operates on what and how long does it last?
one rechargeable NiMH battery, in non-tracking mode, the batteries will last approximately 12 hours. In tracking mode, the batteries will last approximately 6 hours.
SCBA Manual Ch. 2 pg. 20
134
When the battery in the Handheld Receiver has approximately (__)% of its life remaining, the "Low Batt" indicator light on the display panel will glow what color?
20%, yellow
SCBA Manual Ch. 2 pg. 20
135
Once the battery in the Handheld Receiver has approximately 20% of its life remaining, the "Low Batt" indicator light on the display panel will glow yellow. The Handheld Receiver will continue to operate for approximately how long?
forty-five (45) minutes in the low battery condition.
SCBA Manual Ch. 2 pg. 20
136
The Pak-Tracker Handheld Receiver is powered and operates on one rechargeable NiMH battery. The rechargeable battery can be recharged up to _____ ____.
500 times
SCBA Manual Ch. 2 pg. 20
137
The large LCD panel on the Pak-Tracker HHR will visually display up to how many transmissions at a time? When in alarm mode the operator has the capability of scrolling through how many transmitters?
two, thirty-six (36)
SCBA Manual Ch. 2 pg. 20
138
The bright LCD display on the HHR will provide the signal strength of the transmitter being located. The high-intensity graphical bars incrementally illuminate when signal strength is greater than ___. What else?
50%. A continuous audible tone will increase in volume as the search nears the down firefighter.
SCBA Manual Ch. 2 pg. 20
139
To activate the Pak-Tracker Handheld receiver, press what and what will happen?
both the "Scroll" and "Enter" buttons simultaneously. The receiver will beep, and the LCD display will illuminate.
SCBA Manual Ch. 2 pg. 21
140
If there are no transmitters in alarm mode on the Pak-Track Handheld receiver, the LCD panel will display what?
Double lines of dashes
SCBA Manual Ch. 2 pg. 22
141
Upon receiving a signal on the Pak-Tracker Handheld, what must be done?
Slowly sweep the receiver from side to side and/or up and down to locate the strongest signal. I higher number indicates the stronger signal and the approximate direction of the signal from the transmitter.
SCBA Manual Ch. 2 pg. 22
142
The Handheld Receiver LCD panel could display information from how many transmitters at a time?
two personal transmitters at a time and is able to scroll up to 36 transmitters
SCBA Manual Ch. 2 pg. 26
143
When more than two transmitters are in transmit or alarm mode, the LCD will display __ ___ ___ ___ on both sides of the LCD to indicate there are more signals being received by the handheld receiver
two double-down arrows
SCBA Manual Ch. 2 pg. 22
144
On the Hand-Held Receiver, to lock onto a specific transmitter signal, what must be done?
Use the scroll button to place the transmission identification on the top row of the LCD display and press the enter button on the right side once. The handheld receiver will beep and display signal strength both numerically and graphically with light bars illuminating once the signal reaches 50%.
SCBA Manual Ch. 2 pg. 23
145
On the Handheld Receiver, when the signal strength number is 51 or higher, the receiver will do what?
The receiver will produce a variable pitch tone once per second that corresponds to the signal strength (stronger signal will produce a higher pitch tone and a weaker signal will produce a lower pitch tone).
SCBA Manual Ch. 2 pg. 23
146
To continue searching for another firefighter, clear the identification number on the handheld receiver by holding the scroll down for ___ _____. Once cleared, begin searching for the next injured or downed firefighter.
three seconds
SCBA Manual Ch. 2 pg. 23
147
Transmitter signals on the Hand-Held Receiver will usually pass through the following types of materials or openings:
1. Openings such as gaps, holes, stairways, windows, or elevator shafts
2. Glass
3. Wood
4. Light building materials
SCBA Manual Ch. 2 pg. 23
148
Transmitter signals on the Hand-Held Receiver will reflect off the following types of materials:
1. Metal, including structural framework
2. Large metal objects
3. Concrete walls or floors
4. Brick or concrete block construction
SCBA Manual Ch. 2 pg. 24
149
The transmitter signal on the Pak Tracker Hand-Held Reciever will be absorbed by what?
The human body
SCBA Manual Ch. 2 pg. 24
150
Can the Pak-Tracker locator transmitter system operate in other jurisdictions?
Yes, when providing Mutual Aid to departments equipped with the same transmitter system.
SCBA Manual Ch. 2 pg. 24
151
Transmitter Designations on the Handheld:
DC E30 O
DC E30 R
DC E30 L
DC E30 D
DC E30 SP1
Officer
Line
Layout
Driver
Spare 1
SCBA Manual Ch. 2 pg. 25
152
Transmitter Designations:
DC T17 O
DC T17 L
DC T17 R
DC T17 D
DC T17 T
DC T17 SP1
Officer
Hook
Bar
Driver
Tiller
Spare 1
SCBA Manual Ch. 2 pg. 25
153
Batteries
1. Pak-Tracker Hand-Held Receiver
2. Integrated Personal Alert Safety System (PASS) Transmitter
1. Rechargeable Battery;
Non-tracking mode = 12 hours
Tracking mode = 6 hours
2. (6) "AA" alkaline batteries;
Automatic (green flashing light, no sound)=approximately 1,000 hours
Full Alarm (red flashing light) = approximately 8 hours
SCBA Manual Ch. 2 pg. 12, 17
154
Inspection of the 3M Scott AP 75 5.5 SCBA. Check the cylinder pressure gauge for a "Full" indication. A "full" cylinder is indicated by the pressure indicator being where, and when shall it be changed?
Just to the left of "F" in FULL. Cylinders shall be changed when the pressure gauge indicator falls below 5000 psi.
SCBA Manual Ch. 3 pg. 1
155
Damage to composite cylinders is assessed on three levels. What are they?
Level 1. Cuts or scratches involving the outer surfaces only.
Level 2. Cuts that have penetrated through the outer layers of plastic and have cut the fiber over-wrap threads.
Level 3. Cuts greater than Level 2 or cuts that expose bare metal.
SCBA Manual Ch. 3 pg. 1
156
Cylinders with damage greater than ___ __ shall be placed out of service.
Level 1
SCBA Manual Ch. 3 pg. 1
157
Confirm the date of manufacture. Any cylinder __ ____ and older MUST be removed from service.
15 years.
SCBA Manual Ch. 3 pg. 1
158
Check the date of last hydrostatic test. Each cylinder is required to be hydro-statically tested every _ __. Remove any cylinder with a past-due hydrostatic test from service.
5 years.
SCBA Manual Ch. 3 pg. 1
159
Check the manual Pak-Alert alarm: Check the batteries by depressing the reset button (yellow button) once, located on the side of the control console with remote cylinder gauge. What will you see for each battery indicator?
1. A green light will flash twice (once when the button is depressed and once when it is released) on the control console with remote pressure gauge if the batteries are OK.
2. Two red lights (top and bottom of the LED display) will flash if the battery power is low and the batteries must be replaced.
3. The absence of any light indicates that the Pak-Alert is defective, or that the batteries are either completely discharged or missing.
SCBA Manual Ch. 3 pg. 2
160
Pressing the manual alarm button (red button), located on the front of the control console with remote cylinder gauge will do what?
The alarm should begin sounding a loud, three-part alarm tone, accompanied by the red signal light on the control console flashing on and off.
SCBA Manual Ch. 3 pg. 2
161
Reset the Pak-Alert alarm by pressing the reset button (yellow button) twice. What will happen?
The Pak-Alert will sound three quick chirps, and the red flashing signal light will turn to green.
SCBA Manual Ch. 3 pg. 3
162
Turning off the Pak-Alert. What will happen?
Press the reset button twice. The green light on the control console with remote pressure gauge will go out, and a two-beep deactivation tone will sound.
SCBA Manual Ch. 3 pg. 3
163
Inspect the harness and back frame assembly. Inspect the steel wire frame. Locate the colored flow test date sticker. Ensure the harness has been tested within what?
Has been tested within the last year of the current date. If test date is past 1 year, remove the SCBA harness from service and report to the Mask Room
SCBA Manual Ch. 3 pg. 3
164
Rotating the Purge Valve 180* counterclockwise from the 12 o'clock position will do what?
Air should flow freely from the spray bar
SCBA Manual Ch. 3 pg. 4
165
Rotating the Purge Valve 180* clockwise to the fully closed position (12 o'clock position) will do what?
No air should flow
SCBA Manual Ch. 3 pg. 4
166
When checking the operation of the EBSS, pull back the collar of the Male connection to allow what to happen?
air to escape. If no air is released upon the operation of the Male connection, remove the SCBA harness from service.
SCBA Manual Ch. 3 pg. 4
167
When checking the automatic function of the Pak-Alert alarm, how many times will the unit enter the pre-alert mode?
Three times. After the first time, shake the unit to reset the Pak-Alert alarm. After the second time, press the reset button once. After the third time, let it go into full alarm, press and reset button twice
SCBA Manual Ch. 3 pg. 5
168
Allowing the 3M Scott AP 75 5.5 SCBA to remain motionless for 32 seconds will do what?
The unit will enter the pre-alert mode at 20 seconds; the additional 12 seconds will cause the unit to enter the alarm mode.
SCBA Manual Ch. 3 pg. 5
169
When the air pressure drops to approximately ___ ___ (approximately __ of the full cylinder), the heads-up display (HUD) should indicate a _____ _____ ____.
4,000 psi, 3/4, single green light
SCBA Manual Ch. 3 pg. 5
170
When the air pressure drops to approximately ____ ___ (approximately __ of the full cylinder), the heads-up display (HUD) should indicate a ___ ____.
2,750 psi, 1/2, yellow light
SCBA Manual Ch. 3 pg. 5
171
When the air pressure drops to approximately ___ (__ as indicated on the gauge), listen for the ______ to function and the ___ _____ on the heads-up display (HUD) should be flashing rapidly at what?
1,800 psi, 1/3, Vibralert, red light, 10 times a second
SCBA Manual Ch. 3 pg. 5
172
Bleed off the residual air, and turn off the Pak-Alert by pressing the reset button twice. The Pak-Alert will check for zero air pressure for __ ____, and will turn off if it senses that all pressure has been bled. If the Pak-Alert starts to chirp about once a second, and the unit fails to sound the two-beep deactivation tone, what happened?
15 seconds, All air pressure has not been discharged from the system, and the Pak-Alert will remain active.
SCBA Manual Ch. 3 pg. 6
173
Quick steps for checking out your 3M Scott AP 75 5.5 SCBA,
1. Check the cylinder pressure gauge for a "FULL" indication.
2. Inspect the air supply cylinder.
3. Check the high-pressure hose and connections.
4. Check the low-pressure hose and connections.
5. Inspect the mask-mounted regulator.
6. Check the manual Pak-Alert alarm.
7. Inspect the facepiece assembly.
8. Check the Dual EBSS buddy breathing system.
9. Check the RIC/UAC (Rapid Intervention Crew/ Universal Air Connection).
10. Visually inspect the Sensor Module Assembly of the Pak-Alert for wear and damage.
11. Inspect the harness and back-frame assembly.
12. Check the breathing regulator function of the 3M Scott AP 75 5.5 SCBA.
13. Check the operation of the EBSS.
14. Check the automatic functions of the Pak-Alert alarm.
15. Check the transfer valve and Vibralert.
16. Turn off the Pak-Alert
SCBA Manual Ch. 3 pg. 6
174
When inspecting and testing the Scott RIT- Pak Portable Air Supply, turn the cylinder valve off and ensure the rubber boot is firmly in place on the RIC/UAC line and briefly depress the center of the boot covering the RIC/UAC, what should happen? And why do we have to make sure the rubber boot is firmly in place?
air should flow and stop when released, high pressure air can be injected through the skin if the RIC/UAC nipple is pushed without the boot on.
SCBA Manual Ch. 3 pg. 7
175
When draining the air from the Scott Rit-Pak Portable Supply, what should be done?
Open the purge valve 1/2 turn to the open position-air should flow and the low-pressure whistle should sound at 25% cylinder pressure (1300 psi).
SCBA Manual Ch. 3 pg. 7
176
If any component of the SCBA fails a testing/inspection procedure: Replace the defective SCBA with a spare unit and perform the pre-use inspection on the new SCBA before placing it on the apparatus. If a spare unit is not available what will happen? If a replacement is not available, what will happen?
If a spare is not available in quarters, contact the respective Air Unit to obtain a replacement. If a replacement SCBA is not immediately available, the Company shall be placed out of service until a replacement can be obtained.
SCBA Manual Ch. 3 pg. 8
177
Reporting defective SCBA Components. Make required notifications to whom?
A. All defective components shall be reported to FEMS.MaskRoom@dc.gov.
B. Alll defective SCBA harnesses shall be reported to the respective Air Unit.
C. Defective facepieces shall be reported to the on-duty Safety Battalion Chief.
SCBA Manual Ch. 3 pg. 8
178
SCBA cylinders with damage greater than _____ _ shall be placed out of service and what?
Level 1, tagged with the SCBA Repair Request Form, and exchanged with a serviceable cylinder at the respective BFC quarters.
SCBA Manual Ch. 3 pg. 8
179
What types of ways are there to don SCBA?
1. Overhead Method
2. Apparatus Mounted
3. Coat Method
SCBA Manual Ch. 4 pg. 1-4
180
The weight of the SCBA is designed to be carried on the ___, not on the _________ Fully adjusting the shoulder straps prior to adjusting the waist straps will do what?
Hips, shoulders, Results in the weight of the unit resting on the shoulders instead of on the hips, causing increased fatigue.
SCBA Manual Ch. 4 pg. 1
181
Under normal operation, the operator will slowly open the cylinder valve until the handwheel stops and the valve is completely open. What will the SCBA do?
A. The user should both feel and hear the Vibralert alarm start and stop.
B. The Pak-Alert will sound three quick chirps.
C. The heads-up display should be lit
D. The green light on the sensor module will flash about once per second.
E. There should be NO airflow from the regulator.
SCBA Manual Ch. 5 pg. 1
182
If you or your partner experience mechanical malfunction of an SCBA what must the user do?
Must immediately leave the contaminated atmosphere with their partner and the user must immediately notify their officer.
SCBA Manual Ch. 5 pg. 2
183
If an SCBA malfunction occurs on the fire ground, what must you do with the unit?
Tie the harness straps into a knot to prevent re-use by personnel unaware of the malfunction.
SCBA Manual Ch. 5 pg. 2
184
How to "Turn off the Pak-Alert."
A. Press the reset button twice
1. If the Pak-Alert starts to chirp about once per second, and the unit fails to sound the two-beep deactivation tone, all air pressure has not been bled from the system, and the Pak-Alert will remain active.
SCBA Manual Ch. 5 pg. 2
185
Bleed off the residual air and turn off the Pak-Alert by pressing the reset button twice. The Pak-Alert will check for zero air pressure for how long?
15 seconds and will turn off if it senses that all pressure has been bled. If pressure has not been bled from the system during the 15 second test period, the Pak-Alert will fail-safe and will go back into monitoring mode.
SCBA Manual Ch. 5 pg. 3
186
How do you know when the Pak-Alert is off?
The green light on the control console with remote pressure gauge will go out, and a two- beep deactivation tone will sound.
SCBA Manual Ch. 5 pg. 3
187
To reduce wear on the hoses and wire assemblies, what is used to carry the SCBA?
Use the shoulder and waist straps to lift and carry the SCBA.
SCBA Manual Ch. 5 pg. 3
188
Assessment of a downed firefighter. Upon making contact with a downed or disoriented firefighter, the rescuing crew must do what?
Control the PASS device if activated, declare a Mayday, and perform a rapid assessment of the downed firefighter's SCBA.
SCBA Manual Ch. 6 pg. 1
189
What acronym is used to perform a rapid assessment of a downed firefighters SCBA?
ABC'S
SCBA Manual Ch. 6 pg. 1
190
When using the acronym ABC'S to perform a rapid assessment of a downed firefighter SCBA, what does the A represent?
Airway-Check the integrity of the facepiece to ensure that the lens, gasket, and interface with the breathing regulator is intact. If any part of the facepiece is not intact, immediately replace the facepiece with a functional one.
SCBA Manual Ch. 6 pg. 1
191
When using the acronym ABC'S to perform a rapid assessment of a downed firefighter SCBA, what does the B represent?
Breathing-Check to make sure that the breathing regulator is intact and attached to the facepiece by performing a visual inspection. If the regulator is not present, not intact, and/or not attached to the facepiece, immediately replace the breathing regulator with a functional one.
SCBA Manual Ch. 6 pg. 1
192
When using the acronym ABC'S to perform a rapid assessment of a downed firefighter SCBA, what does the C represent?
Cylinder- Check to make sure that there is air in the SCBA cylinder by looking at either the remote gauge, cylinder gauge, or heads-up display. If there is less than 1800 psi remaining in the downed firefighter's cylinder, provide supplemental from a RIT Pak or SCBA.
SCBA Manual Ch. 6 pg. 1
193
When using the acronym ABC'S to perform a rapid assessment of a downed firefighter SCBA, what does the S represent?
Straps-If the firefighter is incapacitated, the shoulder and waist straps must be secured before extrication from the IDLH atmosphere. Shoulder straps should be tightened down and then secured by taking two round turns or tying an overhand knot around the strap and below the adjustment buckle.
SCBA Manual Ch. 6 pg. 1
194
Components of the RIT Safety Systems Bag itself are what?
A 1000 denier nylon bag with center pocket to accommodate SCBA cylinder, split side pockets to hold high and low pressure hoses, top pocket to hold webbing and cutters, should strap, (4) shoulder strap connection rings, grab handles, RIC/UAC connection pocket.
SCBA Manual Ch. 6 pg. 2
195
All components of the RIT-Pak are what?
RIT Safety Systems Bag
45 Minute Cylinder
C5 Facepiece
C5 Regulator
25' High Pressure Hose
20' Low Pressure Hose
Remote Gauge and Low Air Whistle
SCBA Manual Ch. 6 pg. 2,3
196
What size C5 Facepiece is in the RIT-Pak?
Medium facepiece with full head harness
SCBA Manual Ch. 6 pg. 2
197
On the RIT-Pak the High Pressure Hose is __ in length and is connected to what?
25', connected to the RIC/UAC
SCBA Manual Ch. 6 pg 3
198
On the RIT-Pak the Low Pressure Hose is ___ in length and is connected to what?
20', connected to the standard Dual EBSS
SCBA Manual Ch. 6 pg. 3
199
On the RIT-Pak the Remote Gauge and Low Air Whistle will alert at what percent?
Activates at 25% cylinder pressure.
SCBA Manual Ch. 6 pg. 3
200
Emergency air supply can be broken down into two main categories, what are they?
supply of compressed air for breathing, and component replacement to remedy a failed or missing component
SCBA Manual Ch. 6 pg. 4
201
For low-air emergencies that do not involve broken or missing component of the SCBA circuit there are two main ways to provide air, what are they?
EBSS and RIC/UAC connection
SCBA Manual Ch. 6 pg. 4
202
The RIT-Pak responsibilities are a two-person team consisting of what?
The "air management firefighter" and the "packaging firefighter."
SCBA Manual Ch. 6 pg. 4
203
The RIT-Pak responsibilities of the "air management firefighter" will be whom?
The Hook position on the truck unless otherwise directed company and be responsible for carrying the RIT Pak, performing the assessment, and making all air connections
SCBA Manual Ch. 6 pg. 4
204
The RIT-Pak responsibilities of the "packaging firefighter" will be whom?
The Barman position on the truck is responsible for doing all downed firefighter packaging (waist/shoulder straps/webbing) and securing the RIT Pak to the downed firefighter for extrication from the IDLH.
SCBA Manual Ch. 6 pg. 4
205
For Emergency Breathing Support System (EBSS), a Dual EBSS to Dual EBSS allows for what?
the sum of air between the downed firefighter's cylinder and the RIT cylinder to be consumed first.
SCBA Manual Ch. 6 pg. 5
206
When utilizing the Dual EBSS to Dual EBSS when is the Vibralert functional? When isn't it?
While the downed firefighter is breathing off of their cylinder the Vibralert function is operational. When the RIT-Pak is supplying the downed firefighter, the whistle is the only indication of a low RIT-Pak cylinder.
SCBA Manual Ch. 6 pg. 5
207
What are the pros of utilizing a Dual EBSS to Dual EBSS connection during an emergency?
* Sum of both cylinders available for consumption
* Does not increase risk of pulling facepiece from downed firefighter's face
*No interruption of air supply
SCBA Manual Ch. 6 pg. 5
208
What are the cons of utilizing a Dual EBSS to Dual EBSS connection during an emergency?
* Required to manage connected hoses and RIT-Pak during egress
* No Vibralert EOSTI
SCBA Manual Ch. 6 pg. 5
209
The firefighter in need of air shall open and remove the Dual EBSS hose from the storage pouch on his ___ waist pad and remove what?
left, the rubber dust cover from the manifold.
SCBA Manual Ch. 6 pg. 5
210
In an emergency, a Dual EBSS to Quick Disconnect connection only allows for what?
only allows for the air in the RIT cylinder to be consumed.
SCBA Manual Ch. 6 pg. 6
211
In an emergency, utilizing a Dual EBSS to Quick Disconnect connection what is the indication of low RIT-Pak cylinder pressure?
the whistle
SCBA Manual Ch. 6 pg. 6
212
In an emergency, a Dual EBSS to Quick Disconnect connection may be utilized if the firefighter needing air has what?
An intact and functional breathing regulator and facepiece but does not have a functional primary reducing regulator, the back frame is entangled and must be left behind, or the SCBA cylinder and back frame must be left behind to facilitate removal through tight openings.
SCBA Manual Ch. 6 pg. 6
213
What are the pros of utilizing a Dual EBSS to Quick Disconnect connection during an emergency?
* Ability to leave SCBA back frame of firefighter needing air behind if entangled or to facilitate removal through tight openings
* Minimal exposure of the firefighter needing air to the IDLH atmosphere
SCBA Manual Ch. 6 pg. 6
214
What are the cons of utilizing a Dual EBSS to Quick Disconnect connection during an emergency?
* Careful attention is required to not inadvertently pull the facepiece off of the firefighter needing air if low-pressure hose snags or becomes entangled
* Momentary loss of air supply while making a connection
* RIT cylinder is the sole source of air for the downed firefighter
* No warning of low supply cylinder pressure until whistly activates at 25%
* HUD will no longer be functional on firefighter needing air
SCBA Manual Ch. 6 pg. 6
215
When a user has an intact and functioning SCBA with low air supply, the RIC/UAC connection may be utilized for what?
trans-fill compressed air from the RIT-Pak cylinder to the cylinder needing air.
SCBA Manual Ch. 6 pg. 7
216
When Transfilling cylinders the RIC/UAC connection and hose allow what?
the pressure in two cylinders to be equalized under high pressure.
SCBA Manual Ch. 6 pg. 7
217
The speed and volume of compressed air being trans-filled depends on what?
The difference in the pressure between the supply cylinder and the cylinder and the cylinder needing air. A completely full (5500 psi) cylinder supplying a completely empty cylinder takes approximately 45 seconds to trans-fill and will equalize at approximately 2250 psi (some pressure is lost to pressurizing the system, heat transfer from filling, and from Vibra alert activation.)
218
A completely full (5500psi) cylinder supplying a completely empty cylinder takes approximately how long and to how much psi?
Approximately 45 seconds, approximately 2250 psi due to some lost pressure to pressurizing the system, heat transfer from filling, and from Vibralert activation.
SCBA Manual Ch. 6 pg. 7
219
In an emergency, what are the pros of utilizing the Trans-filling cylinders procedure?
* Firefighter needing air may exit under their own power without needing to manage a hose between their SCBA and RIT-Pak.
* Firefighter needing air retains the functionality of their Vibralert and HUD.
* Can be repeated if necessary.
SCBA Manual Ch. 6 pg. 7
220
In an emergency, what are the cons of utilizing the Trans-filling cylinders procedure?
* Limited to half of the supply cylinder's pressure/volume after trans-filling
* Repeat trans-filling from the same cylinder returns less pressure/volume each time
SCBA Manual Ch. 6 pg. 7
221
When trans-filling cylinder with the RIT-Pak, the air management firefighter ensures what?
Both the RIT cylinder and the cylinder to be supplied are fully open by operating the cylinder valves.
SCBA Manual Ch. 6 pg. 8
222
If during the assessment of a downed firefighter, it is determined that they have a damaged or inoperable facepiece, breathing regulator, or non-functional SCBA assembly, what must happen?
The component must be replaced with the corresponding one from the RIT Pak.
SCBA Manual Ch. 6 pg. 8
223
In an emergency, what are the pros of the replacement of failed components from the RIT Pak?
* The most definitive way to correct a problem with the user's facepiece
SCBA Manual Ch. 6 pg. 8
224
In an emergency, what are the cons of the replacement of failed components from the RIT Pak?
* Significant exposure to the IDLH atmosphere
* Differences in facial features may prove challenging to properly apply facepiece
* Difficult to determine the facepiece seal
* Careful attention to not inadvertently pull the facepiece off of the firefighter needing air if low-pressure hose snags or becomes entangled.
SCBA Manual Ch. 6 pg. 8
225
If the down firefighter is breathing but not forceful enough to start the flow of air the purge valve may be closed and what?
The regulator "bumped" by quickly striking the outside (on the red Scott label) to trip the diaphragm to start on-demand airflow.
SCBA Manual Ch. 6 pg. 9
226
If during the assessment of a downed firefighter, the regulator is determined to be missing or compromised, what is the priority?
The priority shall be to replace the regulator with the regulator from the RIT-Pak.
SCBA Manual Ch. 6 pg. 9
227
In an emergency, it is determined that the breathing regulator will be replaced, what are the pros?
* The most definitive way to correct a problem with the user's regulator.
SCBA Manual Ch. 6 pg. 9
228
In an emergency, it is determined that the breathing regulator will be replaced, what are the cons?
* Moderate exposure to the IDLH atmosphere
* Persons unfamiliar with the docking procedure of a C5 regulator to the facepiece may cause undue exposure to the IDLH atmosphere when attempting to connect the regulator to the facepiece.
SCBA Manual Ch. 6 pg. 9
229
Buddy Breathing operations. When a low-air emergency occurs, the most readily available resource for air is the crew and/or partner of the firefighter needing air. When a user requiring air (Vibralert activated) is supplied from another SCBA via the Dual EBSS to Dual EBSS method, both users will have what happen?
Both users' Vibralerts will activate.
SCBA Manual Ch. 6 pg. 10
230
Buddy Breathing operations. When a low-air emergency occurs, the most readily available resource for air is the crew and/or partner of the firefighter needing air. When utilizing the Dual EBSS to Dual EBSS, an automatic switch in the pressure reducer allows both users to deplete what?
The lowest cylinder first. Once the air pressure in the low cylinder has been depleted (less than 500 PSI), both users will automatically be switched to the air supply of the higher cylinder.
SCBA Manual Ch. 6 pg. 10
231
Buddy Breathing operations. When a low-air emergency occurs, the most readily available resource for air is the crew and/or partner of the firefighter needing air. When utilizing the Dual EBSS to Dual EBSS, both Vibralerts will turn off if what?
If the SCBA is above 1/3 full. Once the air pressure in the second cylinder falls below 1/3 full, both Vibralerts will once again activate.
SCBA Manual Ch. 6 pg. 10
232
Buddy Breathing operations. When a low-air emergency occurs, the most readily available resource for air is the crew and/or partner of the firefighter needing air. When utilizing the Dual EBSS to Dual EBSS, what are the pros?
* The sum of both cylinders air is available for consumption
* 72" combined length of eBSS hoses allow for maneuverability
SCBA Manual Ch. 6 pg. 10
233
Buddy Breathing operations. When a low-air emergency occurs, the most readily available resource for air is the crew and/or partner of the firefighter needing air. When utilizing the Dual EBSS to Dual EBSS, what are the cons?
* Must manage the EBSS connection during egress
SCBA Manual Ch. 6 pg. 10
234
When an emergency exists, the Dual EBSS to Low Pressure quick connect can be utilized. Both users will be sharing the assisting firefighter's air supply and will not be able to use the remaining air supply of the low-air user. After the connection is made, both users' Vibralerts will be doing what?
Will be off if the assisting firefighter's SCBA is above 1/3 full. When the cylinder falls below 1/3 full, both users' Vibralerts will activate.
SCBA Manual Ch. 6 pg. 11
235
When an emergency exists, the Dual EBSS to Low Pressure quick connect can be utilized. What are the pros of utilizing this technique?
* Ability to shed the SCBA back frame of firefighter needing air behind if entangled or to facilitate removal through tight openings
* Minimal exposure of the firefighter needing air to the IDlh atmosphere
SCBA Manual Ch. 6 pg. 11
236
When an emergency exists, the Dual EBSS to Low Pressure quick connect can be utilized. What are the cons of utilizing this technique?
* Careful attention to not inadvertently pull the facepiece off of the firefighter needing air if low-pressure hose snags of become entangled
* Momentary loss of air supply while making connection
* Supply cylinder is the sole source of air for both users
* HUD will no longer be functional on firefighter needing air
SCBA Manual Ch. 6 pg. 11
237
When utilizing the Dual EBSS to Low-Pressure Quick Connect, the assisting firefighter shall hand their Dual EBSS manifold to the low-air firefighter, then what?
The low-air firefighter can then connect the male coupling to their low-pressure hose to the female coupling of the Dual EBSS manifold.
SCBA Manual Ch. 6 pg. 11
238
When utilizing the Dual EBSS to Low-Pressure Quick Connect, upon making the connection, members will have approximately how many feet between them?
four feet of low-pressure hose connecting them.
SCBA Manual Ch. 6 pg. 11
239
If the Primary Reducing Circuit fails in the closed position, what occurs?
Air is automatically rerouted to the Secondary Reducing Circuit before reaching 1/3 of the rated cylinder pressure.
SCBA Manual Ch. 6 pg. 12
240
What are the indications of the primary reducing circuit failing in the closed position?
* Vibralert alarm activation and
* Remaining SCBA cylinder pressure above 33% (or >1800 psi)
SCBA Manual Ch. 6 pg. 12
241
What action needs to be taken by a member when the primary reducing circuit fails in the closed position?
* Notify partner and/or officer
* Exit the IDLH
SCBA Manual Ch. 6 pg. 12
242
When the pressure within the cylinder reaches 33% (~1,800 psi), the primary circuit is supposed to close and send air to the secondary circuit. In a primary circuit failure in the open position, what occurs?
The primary circuit fails to close, and air is flowing through both circuits. This type of failure is undetectable until the cylinder pressure is <33%. Unregulated high-pressure air from the cylinder enters the outlet manifold. The over-pressure relief valve will open, to limit the air pressure in the low-pressure hose to 225 psi.
SCBA Manual Ch. 6 pg. 13
243
What are the indications of the primary reducing circuit failing in the open position?
* Air will continue to flow to the breathing regulator
* Vibralert alarm will operate at a rapid rate
* Loud sound of escaping air from the relief valve on top of the reducing regulator on the SCBA harness.
SCBA Manual Ch. 6 pg. 13
244
What actions does one take if the primary reducing circuit fails in the open position?
* Fully open the red purge valve knob on the regulator by turning it counterclockwise (pointer on knob downward).
* Partially close the cylinder valve by pushing in and rotating clockwise to regulate the flow of air to satisfy the requirement of the user. DO NOT CLOSE THE CYLINDER VALVE COMPLETELY.
Notifying the user's partner and/or officer, through radio transmission. Do not attempt to look for the officer.
* Exit the IDLH.
SCBA Manual Ch. 6 pg. 13
245
What additional actions are taken when the primary reducing circuit fails in the open position and there is a RIT Pak present?
* Attach quick disconnect from failed SCBA to the dual EBSS of the RIT Pak.
SCBA Manual Ch. 6 pg. 13
246
What additional actions are taken when the primary reducing circuit fails in the open position and there is a 2nd SCBA present?
* Attach quick disconnect from failed SCBA to the dual EBSS of the functioning SCBA.
SCBA Manual Ch. 6 pg. 13
247
When partially closing the cylinder valve as part of the primary reducing circuit failing in the open position emergency procedure, why must the user exercise caution?
To ensure that the cylinder valve is not inadvertently fully closed.
SCBA Manual Ch. 6 pg. 13
248
What are some reasons for failures with the breathing regulator failing in the closed position?
Sudden loss of air supply to the facepiece can be a result of mechanical failure of the regulator mechanism, inadvertently closing the cylinder valve, or "over-breathing the regulator" due to only partially opened cylinder valve.
SCBA Manual Ch. 6 pg. 14
249
What are indications of the breathing regulator failing in the closed position?
* Mask draws in and collapses to the user's face with minimal or no airflow.
SCBA Manual Ch. 6 pg. 14
250
What actions should be taken when the breathing regulator fails in the closed position?
* Fully open the red purge valve knob on the regulator by turning it counterclockwise (pointer on knob downward).
* Simultaneously verify that the cylinder valve is fully open.
SCBA Manual Ch. 6 pg. 14
251
What actions should be taken when the breathing regulator fails in the closed position due to diaphragm failure?
* Adjust airflow to the needs of the user by partially closing the purge valve
* Immediately exit the IDLH atmosphere
SCBA Manual Ch. 6 pg. 14
252
What actions should be taken when the breathing regulator fails in the closed position due to failures caused by over-breathing the regulator?
* Ensure the cylinder valve is fully opened - This is the only condition within this section that is user-correctable and does not require the user to exit if the condition is identified and corrected.
SCBA Manual Ch. 6 pg. 14
253
What is the mnemonic for sudden loss of air supply to the facepiece? What does it mean?
"high, low, and away", High refers to the left hand going high to the purge valve, low refers to the right hand going low to the cylinder valve, and away refers to both valves being turned away from the wearer.
SCBA Manual Ch. 6 pg. 14
254
How can the breathing regulator fail in the open position?
During exhalation, the demand breathing valve pushes outwards away from the user to stop the flow of air through the spray bar. If due to a mechanical issue or debris entering the breathing regulator, that valve may be inhibited from moving. In that case, the breathing regulator would be failed in the open position and the flow of air would be continuous.
SCBA Manual Ch. 6 pg. 14
255
What are indications of the breathing regulator failing in the open position?
* Air flows forcefully into the facepiece
SCBA Manual Ch. 6 pg. 15
256
What action should be taken when the breathing regulator fails in the open position?
* Check that the purge valve has been accidentally opened by rotating the valve clockwise to the up position. If this stops the flow of air, there is no failure of the regulator.
* Open the purge valve by rotating it 180 degrees, one-half turn counterclockwise.
* Partially close the cylinder valve by pushing in on the valbe and rotating it clockwise to regulate the flow of air to satisfy the user's needs.
* Monitor the amount of air supplied to the facepiece, and regulate the air supplied by opening or closing the cylinder valve.
257
What action should be taken when the breathing regulator fails in the open position and a RIT Pak is present?
* If controlling the airflow to the failed regulator is unsuccessful, attach breathing regulator from the RIT Pak to the user's facepiece.
SCBA Manual Ch. 6 pg. 15
258
Clean and disinfect the facepiece in the following manner: Remove the facepiece from the mask-mounted breathing regulator. The webbing should be cleaned with what?
Soap and water.
SCBA Manual Ch. 7 pg. 1
259
Disinfect the facepiece by spraying the facepiece with ___ ____ on both sides of the facepiece. Allow __ _____ of contact prior to rinsing.
Fresh-Gear, 10 minutes
SCBA Manual Ch. 7 pg. 1
260
Disinfect the facepiece by spraying the facepiece with Fresh-Gear on both sides of the facepiece. Wet the entire facepiece, including what?
All rubber and plastic areas
SCBA Manual Ch. 7 pg. 1
261
Shall the nose cup be disassembled for cleaning and disinfecting?
The nose cup is designed to be an integral part of the facepiece and shall NOT be disassembled for cleaning and disinfecting.
SCBA Manual Ch. 7 pg. 1
262
Rinse the facepiece assembly with water. Use tepid water to clean the unit. (___ ____F maximum) Never wash the facepiece with what?
110 degrees, hot water
SCBA Manual Ch. 7 pg. 1
263
After cleaning and disinfecting the facepiece, shake excess water from the facepiece. How else should it be dried?
A. Dry with a clean, lint-free cloth.
B. Allow facepiece to air dry.
C. Do not blow-dry the facepiece with shop air or any air-containing lubricants or moisture.
D. Never use paper products on the facepiece lens.
* All paper products contain abrasives, which will scratch the polycarbonate lens.
SCBA Manual Ch. 7 pg. 1
264
When washing, and or rinsing the facepiece, never use water warmer than 110 degrees Fahrenheit (lukewarm to the touch). Water warmer than 110 degrees Fahrenheit will do what?
Loosen the bonding agent used to secure the facepiece seal to the polycarbonate lens
SCBA Manual Ch. 7 pg. 1
265
Inspect the inside of the regulator assembly through the regulator opening. Spray enough what to do what? Allow __ _____ of contact time prior to rinsing.
Fresh-Gear to thoroughly wet the inside of the regulator. 10 minutes
SCBA Manual Ch. 7 pg. 1, 2
266
Inspect the inside of the regulator assembly through the regulator opening. If there is debris inside the regulator what must happen?
tag it out of service and return it to the Air Unit.
SCBA Manual Ch. 7 pg. 1
267
___ ____ submerge the regulator.
Do Not
SCBA Manual Ch. 7 pg. 2
268
When the air supply cylinder is empty, or the pressure remaining has fallen below _____ ___, the cylinder must be replaced with a full cylinder.
5,000 psi
SCBA Manual Ch. 7 pg. 2
269
The 45-minute compressed air cylinder of a 3M Scott Air-Pak 75 5.5 SCBA contains __ ___ ___ of air when pressurized to _____.
66 cubic feet, 5,500 psi
SCBA Manual Ch. 7 pg. 66
270
Exposure to what can weaken the air supply cylinder, possibly leading to catastrophic failure.
Chlorine containing chemicals
SCBA Manual Ch. 7 pg. 4
271
Detergent cleaners, such as laundry detergent should not be used to clean the cylinder of the 3M Scott AP 75 5.5 SCBA. The cylinder contains a copper disc used as an over-pressure relief valve. What can happen to it?
The disc can be damaged by corrosion with the use of detergents.
SCBA Manual Ch. 7 pg. 4
272
The only cleaning materials that are to be used to clean the air supply cylinder are what?
Fresh-Gear and liquid dish detergent
SCBA Manual Ch. 7 pg. 4
273
To prevent injuries to personnel from flying debris compressed air should ____ be used for cleaning.
NEVER
SCBA Manual Ch. 7 pg. 4
274
It should be noted Mobile Air Unit-1 and Air-2, and all related issues pertaining to the units come under the operational control of the ___ _ ___ ___ _ and ___ ___ __, respectively.
Captains of Engine Company 4, Engine Company 8
SCBA Manual Ch. 8 pg. 1
275
The Department maintains __ (_) air compressors. ___ are located at fixed facilities, ___ _, ___ _, and the ____ ____. The ____ is mobile and is carried on ___ __ ___
five (5), Four, Engine 4, Engine 8, the Training Academy, and Adams Place Warehouse fifth, Mobile Air Unit
SCBA Manual Ch. 8 pg. 1
276
Fill-In Air Unit operators shall hold a current _ __ __ on that particular specific Air Unit and shall have completed operational training as established by the assigned ___ ___ ___ and approved by the ___ ___ ____.
FD Form 140, Engine Company Captains, DFC- Risk Management
SCBA Manual Ch. 8 pg. 1
277
What is the primary function of the Air Units?
To provide full SCBA air cylinders, full oxygen bottles, and full cascade at the scene of emergencies.
SCBA Manual Ch. 8 pg. 1
278
Call each battalion headquarters and stations that have breathing air in by ____ hours daily (_____ for Air 2 and _______ for Air 1) to determine the need for replenishment of air cylinders, ____ ___, facepiece or SCBA harness repairs or replacements.
0730, (Battalion 1, 2, 3, TA, and Adams Place Warehouse, Battalion 4, 5, 6), oxygen bottles
SCBA Manual Ch. 8 pg. 2
279
The normal procedure for firefighting units is to replenish air cylinders and oxygen needs where?
at their respective Battalion headquarters
SCBA Manual Ch. 8 pg. 2
280
Companies shall properly tag defective facepieces, harnesses, and air cylinders with the SCBA Repair Request Form. Defective air cylinders shall be transported how?
Empty in proper brackets or tubes
SCBA Manual Ch. 8 pg. 2
281
Air Unit personnel shall only exchange empty air cylinders at any Air Depot location and when specifically requested. The only exception is when?
On the scene of an emergency incident (structure fire, CO leak, etc.) or as ordered. SCBA cylinders shall be filled on site of the emergency incident.
SCBA Manual Ch. 8 pg. 2
282
The Air Units shall maintain a minimum of ____ ready-for-service harnesses on the unit at all times. Where are additional harnesses obtained?
five, the Mask Room
SCBA Manual Ch. 8 pg. 2
283
A journal shall be kept in the Air Units. What should be documented in it?
The number and type of air cylinders, oxygen bottles replaced, any field repairs performed on equipment, and any other information relevant to work performed. Items exchanged/repaired in the field shall be recorded therein.
SCBA Manual Ch. 8 pg. 3
284
When filling SCBA cylinders from an Air Unit, what will be recorded?
The cylinder serial number, manufacture date, and approximately how much air was remaining in the cylinder.
SCBA Manual Ch. 8 pg. 3
285
When the Air Unit arrives on the fire ground, what must the technician do?
A. Notify OUC or IC by radio on the designated tactical channel of the unit's location
B. Report to the Command Post with PAT tag and portable radio.
C. Operate as ordered by the IC or his/her designee.
SCBA Manual Ch. 8 pg. 3
286
On a fire ground incident, the Air unit technician will perform PPE hood exchange as necessary. Each Air Unit shall maintain an inventory of __ exchangeable hoods. Hoods are to be exchanged ___ for __. How many bins will the air unit have for this and why?
30, one, one. Two bins must be maintained, one for clean hoods and one for contaminated hoods. Post-incident, the Air Unit Technician must launder contaminated hoods and return them to the clean hood bin when finished.
SCBA Manual Ch. 8 pg. 4
287
If the Air Unit Technician needs additional hoods, whom must they contact for replacements?
Logistics
SCBA Manual Ch. 8 pg. 4
288
Service rounds shall be made between __-__ hours, and as necessary, at the following Air Depots:
0800-1200
Air 1
Engine 2 Air 2
Engine 4 Engine 8
Engine 11 Engine 12
Engine 16 Engine 15
Engine 20 Training Academy
Engine 24 Adams Place Warehouse
SCBA Manual Ch. 8 pg. 4
289
Once the rounds have been completed, the air unit technician shall report to ____ (___ ___) with any item that needs repair. The unit is equipped with __(_) Scott AP 75 5.5 SCBA harnesses. Air unit technicians shall maintain ___(_) harnesses on the unit at all times. These units are exchanged one for one.
Engine 4, Mask Room, five, (5), five, (5)
SCBA Manual Ch. 8 pg. 4
290
On rounds, when harnesses are exchanged, the defective ones must be tagged with the SCBA Repair Request Form and taken where? What information shall be included on the tag?
To the Mask Room for repair. The date, the company number, the harness ID, the OIC of that company reporting the defect his/her platoon, and his/her signature.
SCBA Manual Ch. 8 pg. 4
291
The department has four (4) fill stations. They are located at:
1. Engine 4 (eight-cylinder fill site, four at a time)
2. Engine 8 (eight-cylinder fill site, four at a time)
3. Training Academy (eight-cylinder fill site, four at a time)
4. Adams Place Warehouse (eight-cylinder fill site, four at a time)
SCBA Manual Ch. 8 pg. 4
292
Air unit technicians that encounter a problem with one of the fixed or mobile air compressors after normal business hours of the Mask Room (Mon-Fri 0700-1500) shall notify the following members and be guided by their directions.
1. Company Officer of the station housing the compressor.
2. Safety Officer
3. Email fems.maskroom@dc.gov
SCBA Manual Ch. 8 pg. 5
293
Rapidly filling a breathing air cylinder also known as "__ ___", generates excessive heat and can result in what?
"hot filling", loss of pressure as the cylinder cools, leaving the user with reduced breathing air. Fire departments should ensure that cylinders are stored fully charged to maximize use and capacity.
SCBA Manual Ch. 8 pg. 5
294
To ensure cylinders are full, the Technicians are to do what?
To fill 2 cylinders, spin the carousel around, fill the next 2, and then spin it around again and top off the first 2. This will ensure the cylinders are full
SCBA Manual Ch. 8 pg. 5
295
Air passing through the Secondary pressure reducer piston and porting is sent through the outlet port to the mask mounted regulator at a pressure of ___ to ___ psig, momentarily activating the Vibralert end-of-service alarm, situated inside the mask mounted regulator.
145 to 165
SCBA Manual Appendix A pg. 3
296
The pressure reducer, now operating from the Primary Stage, sends air pressure in the range of __ to ___ psig to the mask mounted regulator
85 to 110 psig
SCBA Manual Appendix A pg. 4
297
Secondary pressure of ___ to ___ psig will activate the Vibralert end-of-service alarm (located in the mask-mounted regulator) to warn the user of low remaining cylinder pressure.
145 to 165
SCBA Manual Appendix A pg. 5
298
In the unlikely event of the primary pressure reducer failing in the closed position, the Secondary reducer will automatically take over the reducer function and activate the Vibralert alarm while the user continues to breathe normally. How can this be simulated?
This can be simulated in a fully assembled pressure reducer by pushing and holding the "Press-to-Test" button located in the end of the top cover of the pressure reducer.
SCBA Manual Appendix A pg. 6
299
The purge knob on the side of the mask mounted regulator is a manual override allowing the user to create a constant flow of air into the facepiece at a flow of up to ____ ___ ___ ____.
225 liters per minute
SCBA Manual Appendix A pg. 8
