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1. At what % does the atmosphere become oxygen deficient?
18%
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2. When is the SCBA to be worn?
- contaminated atmospheres
- situations where it is likely that the atmosphere may become contaminated.
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3. What are the 4 low air warnings?
- warning whistle
- Sentinel 2 system chirps
- Red light flashing on the facepiece HUD
- Red lights flashing on the Sentinel 2 system
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4. What are the SCBA emergency procedures?
- Cylinder open
- bypass open
- egress
- call mayday/or for a sas pack
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5. What are the 5 purposes of the sizeup?
- Learn the facts of the situation.
- Understand the probabilities.
- Develop situational awareness.
- * Understand what resources you need.
- Make a decision.
- Formulate a plan of action.
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6. What are the 3 types of building collapse?
- Lean-To Collapse
- Pancake Collapse
- V-Type Collapse
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7. What coupling is closest to the entrance of the structure?
Male coupling
"Big Lug Big Truck"
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8. Describe the 3 types of heat stress.
- a.) Heat Cramps - least severe.
- Symtoms: severe muscle aches
b.) Heat Exhaustion - is more severe.Symptoms: fatigue, muscular weakness, tachycardia, fainting, nausea and vomiting, profuse sweating and the urge to defecate.
c.) Heat Stroke - is very serious. 10% mortality rate.Symptoms: loss of consciousness, a rectal temp above 40 C, or skin that is hot and dry.
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9. Define RIC and what is it for?
- - Rapid Intervention Connection
- - The connection where the Supplementary Air Supply is used to get air to a firefighter that is getting little or no air.- Used to fill the cylinder without interrupting the air supply to the firefighter being rescued.
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10. When does the low air whistle activate, how loud
- is it and how much air does it use?
- LAW activates at 25% of the full cylinder pressure
- LAW is 90 decibels
- LAW uses less than 5 litres per minute of medium pressured air (when activated)
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11. What are the 2 indicator lights on the HUD used
- for and what colour/letter are they?
- Green led (left) 'M' for mask for HUD
- Yellow led (right) 'T' for transducer
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12. Escaping through a wall opening can be achieved
- by what methods?
- Forward Swim Method (preferred)
- Backward Swim Method (preferred)
- Modified Profile Manoeuvre
- Temporary removing SCBA (last resort only)
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13. What do you do after you find a victim?
Search immidiate area for more victims
call command
drag victim out
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14. Why do you search high on a wall?
To look for means of egress... (i.e windows)
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15. What are the two recognized search procedures for CFD?
- Primary Search
- Secondary Search
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16. What are the two common search methods?
- A.) Point man
- B.) Box Method
- C.) Modified box 3+ FF's
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17. What does the low air cylinder pressure icon
- look like?
- good question - hard to describe :)
- a cylinder with lessening degrees of air shown inside
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18. When do you remove your gloves while doffing?
After removing your demand valve, and helmet then it is safe to remove your gloves.
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19. How often does a cylinder get hydrostaticly tested?
Every five years.
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20. What is the procedure for moving a downed fire
- fighter up/down stairs?
- - Tighten harness
- FF#1 - head to cock
- FF#2 - lift the harness
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21. What are the air purity and air quality standards
- for the air in a cylinder?
- Moisture - enough removed that it will not condense at -73 degrees
- Particulates - nothing larger than 10 micronsOil Vapour - less than 1ppm of hydrocarbon vapour
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22. What are the 6 safety Checks while donning
- your SCBA?
- ensure the blue button is pressed
- read the cylinder pressure
- make sure the PASS device is activated
- ensure the Sentinel 2 digital pressure gauge reads within 2% of the cylinder pressure reading
- ensure all skin is covered
- perform the tug, bypass, and negative pressure safety checks
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23. In order to conform to NFPA standards what conditions has the facepiece been tested under?
- 1093 degrees Celsius open flame
- for 10 seconds
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24. List the 3 types of communication during Search
- operations?
- voice
- touch
- hand signals
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25. How long after a firefighter becomes motionless does the PASS device activate?
22 seconds
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26. At what % is an atmosphere considered "O2
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27. What are the Sentinel II warning systems for:half air, 1/4 air, PASS, failed test icon
- Half Air
- - two beeps
- - one red and one orange light flashes on HUD
- 1/4 Air
- - warning whistle
- - Sentinel 2 system chirps
- - Red light flashing on the facepiece HUD
- - 2 red lights flashing on the Sentinel 2 system
- PASS
- - activates if a firefighter does not move after 22 seconds
- - can be manually activated with the yellow button onthe front of the Sentinal 2
- - loud continous alarm.
Failed Icon Test- Large X displayed across the Sentinel 2 screen.
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28. What are the symptoms of wearing an SCBA unit while
- working?
- a.) our profile changes
- b.) center of gravity shifts
- c.) we become 20% less productive physically
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29. How long is the air in a cylinder viable - when does it become stale air?
6 months
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30. What is a step that must be taken before moving through a wall in a self rescue technique?
Sound the floor of the room that we are moving into.
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31. What PSI does the 1st Stage Pressure reducer lower the high pressure airflow down to?
From 4500 PSI down to 87 - 130 PSI
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32. At what pressure does the automatic pressure relief valve open to protect medium pressure components?
160 - 230 PSI
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33. What batteries are used in the HUD?
1 cr2 lithium battery
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34. What batteries are used in the transducer?
2 cr2 lithium batteries
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35. What batteries are used in the voice amp?
2 AAA batteries
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36. What's the goal of a primary search?
Quick and efficient
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37. What's the goal of a secondary search?
- - time is not a factor
- - slower
- - able to say for sure, area is clear
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38. How low do you allow a cylinder to get?
- 100 psi
- Or contaminates may get into the cylinder
- Have the cylinder taged out and checked
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39. How often does your HUD light up?
On for 12 seconds, off for 48.
every second at low air
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40. After your automatic pass goes off at 22 seconds, how long until full alarm?
12 seconds
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41. Describe the face piece lens
- Greater than 90% range of view
- High impact poly carbon
- Optically corrected
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42. At what level does air exchange?
The aveoli
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43. Why is carbon monoxide so dangerous?
It sticks to the hemogloen more easily, and takes longer to detach, taking the place of oxygen
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44. What is the mask made of?
Fire resistant kevlar
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45. What are the 8 parts of the sentinel 2?
- 1) Manual pass
- 2) L button for backlight R button for temperature
- 3) R + L button for off
- 4) Green LED for PASS
- 5) 2 red LED's
- 6) Thermister
- 7) Sound chamber
- 8) Display
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46. What does the Sentinel 2 display tell you?
- 1.) digital pressure
- 2.) analog pressure
- 3.) pictograms
- 4.) temperature display / time to whistle
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47. What is the high pressure line to the sentinel made of? And what does it do?
- Coilled copper capillary tube
- If severed, less than 25 litres per minute will be lost
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48. List the 8 parts of the SCBA.
- 1 facepiece
- 2 sentinel
- 3 cylinder
- 4 supply hoses
- 5 1st stage pressure reducer
- 6 backframe and harness
- 7 demand valve
- 8 warning whistle
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49. List the 7 parts of the face piece.
- 1) Visor
- 2) Hud
- 3) nosecup
- 4) voice amp
- 5) exhalation valve
- 6) neck strap
- 7) head harness
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50. If you lose a load bearing wall, what collapse do you have?
Pancake
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51. If you lose supports,what collapse do you have?
Lean to
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52. If you have heavy loads on an upper floor, what collapse do you have?
'V' type
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53. Describe a cylinder.
- Carbon wrapped aluminum
- Has a bursy disk, if you overfill
- Photoluminescent band (glow in the dark)
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54. Major thing to remember when cleaning your back frame and harness
Do not let water enter the open end of the hose
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55. What do you wash your face piece with?
- Husky 891
- Dry with wypall x60Inspect and lubricate o ring with supplied lubricant
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56. Daily SCBA checks
- @ least 3500psi
- Facepiece straps extended
- Hud is working
- High pressure leak test
- Low air warning
- Test pass (if time)
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57. Weekly checks
- Refilled within 6 months
- @ least 3500
- Daily checks
- Record findings on equipment check sheet
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58. Explain facts in the scene size up.
- Who is calling
- Who is there
- What type of building
- What is its contents
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59. Explain probabilities in the scene size up.
- People in building?
- Will the fire extend?
- Where is fire likely to extend? Can it be stopped?
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60. Explain resources in the scene size up.
- Situational awareness.
- Conditions
- Risks
- Resources
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