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Lieutenants Exam > 3.2.2.3 Commercial Structure Fire > Flashcards

3.2.2.3 Commercial Structure Fire Flashcards

1
Q

What are the tactical priorities, in order, for a commercial structure fire?

A 
Fire attack
water supply
search
supplement suppression system
evacuation
ventilation
2nd attack line
RIT
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2
Q

If there is any indication of fire, what should be done?

A

Call for a 2nd alarm.

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3
Q

What are the general expectations for a 1st due apparatus on a commercial structure?

A 
on scene report, establish command, determine operational mode
consider additional alarms
locate main body of the fire
supply FDC if in vicinity 
initiate fire attack if feasible
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4
Q

What are the general expectations of a 2nd due apparatus on a commercial structure?

A

Stage on C side if possible until report of fire location
initiate fire attack from closest entry point
search immediate area
call for needed resources
continuous water supply if hydrant nearby

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5
Q

What are the general expectations of a 3rd due apparatus on a commercial structure?

A

continuous water supply
supply FDC
2nd attack line

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6
Q

What are the general expectations of a 1st due rescue on a commercial structure?

A

evacuate adjacent units

focused area search

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7
Q

What are the general expectations of a 4th due apparatus on a commercial structure?

A

anticipate need for elevated master stream
position truck for assessment of roof conditions
prepare for roof ops

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8
Q

What are the general expectations of a 5th due apparatus on a commercial structure?

A

RIT
-360 within reason
-deploy ladders as secondary egress
fill unmet tactical priorities

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9
Q

What are the general expectations of a 2nd due rescue on a commercial structure?

A

report to command

fill unmet tactical priorities

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10
Q

What are the general expectations of a battalion chief on a commercial structure?

A

Assume IC position

Utilize IMS

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11
Q

What are the general expectations of a 2nd due battalion chief or staff chief on a commercial structure?

A

Report to command post
Safety Officer
Bring PPE to command post for possible deployment to division/group/brnach
Coordinate decon and rehab

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12
Q

A “big box” is a large non compartmented building that is routinely _______sqft or larger.

A

40,000 sqft

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13
Q

Initial decisions about the operation must anticipate what?

A

Where the fire is going and how quickly it might get there.

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14
Q

What is the primary concern?

A

life safety

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15
Q

What are two of the most important indicators of fire behavior?

A

smoke conditions and the pattern of smoke and air movement

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16
Q

If multiple calls are received what should be done automatically?

A

A 2nd alarm should be dispatched.

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17
Q

Smoke rising from an active fire vs cold smoke from a fire largely controlled by sprinkler system should be an indicator of what?

A

Whether entry is feasible or appropriate.

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18
Q

Heavy smoke or heavy fire conditions indicating involvement of any truss roof system should indicate what?

A

That an exterior attack is appropriate.

19
Q

First due apparatus should attempt to view how many sides of the structure?

A

3

20
Q

Ongoing size up may require the use of a _____ to view the ______.

A

Aerial device

Roof

21
Q

Entry into IDLH environments with ______ and ________ present extreme risks and exterior operations should be considered.

A

poor visibility

no reliable indicator of fire location

22
Q

Crews should use caution to maintain position between the fire and _________.

A

Their escape route.

23
Q

What is immediate jusitification for the abandonment of interior operations?

A

fire involvement of structural roof members

24
Q

What is one of the most effective methods of limiting crew exposure to interior operations while simultaneously addressing occupant life safety?

A

supplemental support of the suppression system.

25
Q

Utilization of what should only be considered for small incipient fire suppression or later overhaul operations?

A

standpipe system

26
Q

What is the most prominent limiting factor affecting utilization of standpipe systems for large scale suppression operations?

A

Inconsistent or unknown locations.

27
Q

Dependence on standpipe systems presents further risk to crews entering the structure without what?

A

protection of a charged hoseline

28
Q

What other negative factors are potentially present with standpipe systems?

A

limited flow capacity

non standard attachment sizes

29
Q

What is the highest incident priority during a big box fire response?

A

life safety

30
Q

What creates the best possible chance of rescue in a big fire with citizens reported to be missing or trapped?

A

Identify as closely as possible where they are.

31
Q

What should be considered the best method of protecting trapped citizens?

A

substantial direct fire attack with coordinate ventilation

32
Q

What should be assumed about any exterior fire?

A

That it has penetrated the interior.

33
Q

What should be established prior to interior operations?

A

Appropriate sized RIT

34
Q

Where should RIT be established on a commercial structure fire?

A

Each entry point

35
Q

What can be used by crews attempting a focused rescue?

A

Tag line off a hoseline

36
Q

Be wary of what conditions at big box incidents?

A

light smoke showing

37
Q

Interior hose stretches should be limited to how far beyond the entry point?

A

150ft

38
Q

If moderate to heavy smoke is showing at the ceiling and hose line crews have not reached the seat of the fire, what should be done?

A

Consider evacuating the structure and initiating a defensive operation.

39
Q

If heat and smoke conditions are worsening, consider doing what?

A

Evacuating and going defensive

40
Q

What should the primary responsibility of first arriving crews be?

A

life safety

exposure protection

41
Q

What is the minimum hose size that should be used for interior FF’ing in a big box fire?

A

2.5”

42
Q

What utilities should typically be secured in a big box operation?

A

Gas

HVAC

43
Q

What should be established quickly if crews are operating inside the building and conditions worsen?

A

vertical ventilation

44
Q

What are Big Box Watch Out situations?

A 
fire in roof truss
Interior recon without full PPE and hose line
Interior crews with worsening heat/smoke
Interior ops off of hose line
Zero visibility
deeper than 150'
FF working past 1/2 air supply
Fire/heavy heat/smoke above crews
Crews on roof over fire
tilt slab construction
horizontal ventilation with interior crews and unchecked fire

Lieutenants Exam (33 decks)

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