test 9

  1. called the A tool on steroids. 
    rex tool
  2. also known as the officers tool
    A tool
  3. K tool is used in conjunction with what other tool?
  4. what constitutes a heavy duty padlock?
    • >1/4" thick of case hardened steel
    • (use a saw)
  5. american lock series 2000 is AKA__
    • hockey puck locks
    • (case hardened w/ locking pin inside)
  6. type of lock where the lock is surface mounted on the inside of the door
    rim lock
  7. round lock.  mechanism is in the handle, not the door (unlike mortise)
    key in the knob and deadbolt are examples
  8. commercial emergency locks.  may have knob removed.  2 bars attached to rotating plate
    fox lock
  9. how do you remove a fox lock?
    • remove 3 of the 4 bolts
    • remove the cylinder w/ halligan
    • use key tool to open lock
  10. All magnetic locks work with AC or DC current?
  11. what is a fail-safe lock?
    needs power to keep it locked
  12. what is a fail-secure lock?
    will stay locked even without power (most common)
  13. door with a metal frame and wood core
  14. superglass with metalic film vacuum deposited on each side
  15. how much stronger is Lexan than glass?
    it is self extinguishing, half the weight, and 1/3 the conductivity as well
    250 x
  16. 30 times more toxic than CO
    hydrogen cyanide
  17. released during combustion process of anything that contains N.  reduces the ability to carry O2.  found in gas or liquid
    hydrogen cyanide
  18. what is natural ventilation?
    • opening windows, doors, scuttles, and skylights to let smoke follow natural course
    • also cutting a hole in a roof.
    • works well with light smoke conditions
  19. what is mechanical ventilation?
    using a powered fan, HVAC, or building's smoke management system
  20. how much more effective is PPV than negative?
  21. when should PPV be used?
    • exhaust set up
    • location and extent of fire is established
    • hoselines are in place
  22. screens can reduce air movement by how much?
  23. how should double-hung and casement windows be opened when there is a wind blowing towards them?
    so the window is open 2/3 down from top and 1/3 on bottom
  24. T/F-you should enter and exit the roof of the bulkhead in the same way
    T-so you don't fall in a shaft
  25. how should you break a window
    • windward side, just below the window
    • strike upper pane in downward motion and trim
  26. when do you vent for life?
    permit FFs to access an area where a known  or suspected life hazard
  27. the cutting edge of an axe should be at what angle to the material?
    90 degrees
  28. cell phone sites emit what?
  29. what does white/gray powdery residue indicate while cutting a roof?
    gypsum roofing-which is prone to collapse
  30. where should you cross over buildings?
    in the front
  31. what are the 3 common types of inspection holes?
    punched hole, kerf, triangular
  32. plunge cut.  
    drive an axe or saw blade into the roof and out
  33. triangular, tepee, or A cut
    inspection hole to check roof material and presence of fire
  34. small cut to check for presence of smoke
    indicator hole
  35. what size of roofing material can the pullback method be used
    • 1" thick
    • (no plywood or OSB)
  36. dice cuts go in which direction?
    direction of rafters (in between)
  37. head cuts go in which direction?
    perpendicular to rafters
  38. what is the normal size of a louvering cut?
  39. what is the butterfly or hinging method?
  40. what is a coffin cut?
    7,9,8 shaped cuts
  41. what is a trench cut?
    • strip cut
    • defensive operations
    • prevent extension of fire in attic
  42. what comes first on a trench cut?

    how wide should it be?
    ventilation hole over fire (20-25' away from trench)

  43. where are inspection cuts made on a trench cut operation?
    5-8' on fire side.  when the fire reaches this point, pull up trench and vent
  44. what is ridging the roof?
    pulling up last (top) section of roof to vent
  45. where do you start PPV on a multi-story dwelling?
    lowest level and work up
  46. if the fire is venting out 2 windows in 1 room...
    it is considered self-venting.  cuts hould not be made directly over the room
  47. a maltese cross on a window signifies what?
    temptered windows designed to be removed by FFs  on highrises
  48. temps inside higher than outside will create what?
    stack effect
  49. temps outside hotter than inside will create what?
    reverse stack effect
  50. air moves from upper floors down
    reverse stack effect
  51. air moves from lower floors up
    stack effect
  52. once fire floor has been determined what should you do with the HVAC?
    activate fan in all zones that dont include fire area
Card Set
test 9
forced entry ventilation