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Taxpayers > Taxpayer1 > Flashcards

Taxpayer1 Flashcards

0
Q

At taxpayers the stability of masonry walls depends on the being concentrated in what direction through the wall?

A

Vertical direction

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1
Q

What are 3 reasons you give a second alarm at a taxpayer ?

A

Store fire with extension to cockloft
Store fire with extension to a exposure
An advanced fire in the cellar

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2
Q

At 1000 degrees a 100 ft steel I beam will expand ?

A

9 1/2 inches

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3
Q

At 970 degrees a 50 ft long steel I beam will expand how much?

A

4 inches

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4
Q

On average in fire conditions how long does cast iron columns collapse?

A

30 minutes

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5
Q

Which is more serious if it collapses a girder or a column?

A

Column more serious

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6
Q

Which is worst to collapse a bearing wall or a column?

A

Bearing wall worst

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7
Q

Where are outside cellar stairs usually found at taxpayers?

A

In the rear of the bldg

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8
Q

When are roll down gates at a fire more dangerous when there up or down?

A

Up all weight in one place

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9
Q

How would you secure a roll down gate after you have gotten it open at a fire?

A

Clamping vise grip pliers in the track under the roller or use a ladder to hold up gate

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10
Q

A waring sign of a collapse potential at a taxpayer would be a heavy body of fire burning out of control for _____ minutes.

A

20 minutes

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11
Q

At a taxpayer fire if you see walls leaking smoke or water what would this indicate to you?

A

Possibly collapse warning sign

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12
Q

How much does 1 cubic foot of brick weight?

A

100 pounds

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13
Q

Inability to make successful headway against a heavy fire conditions within how long in the fire would be a possible indicator of a collapse?

A

20 minutes

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14
Q

When you have a fire in a smoke shop what is the recommended method of fighting the fire?

A

2 1/2 consider knocking down the fire from the sidewalk first

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15
Q

What are three basic factors necessary for a back draft?

A

Combustibles oxygen heat

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16
Q

Can a decorative metal cornice be removed on older taxpayers built in the 1920’s ?

A

Yes

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17
Q

What’s the most prevalent type of taxpayers ?

A

1920-1960

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18
Q

Can the cornice of a taxpayer built between 1920- 1960 be removed ?

A

Most cases will not provide access to the cockloft

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19
Q

What is the size of a cockloft in a taxpayer?

A

4” to more than 6 ft

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20
Q

What type of truss is prevalent in modern taxpayer construction?

A

LW parallel chord truss

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21
Q

Which chord of the bowstring truss was mis calculated?

A

Bottom chord

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22
Q

The bowstring truss was miscalculated by how much?

A

Miscalculated by 60%
Bottom chord
Roofs may only support 40% of weight originally calculated for

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23
Q

The bottom chords of bow string truss roofs have inadequate ?

A

Tensile strength

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24
Q

What kind of load on a bowstring truss roof was miscalculated ?

A

Concentrated load.

Made by snow drifts in one area

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25
Q

When a bow string truss roof fails does fire have to be involved in it?

A

No they have failed with no fire impingement

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26
Q

Do would BWSTG truss roofs give warning signs before failing?

A

No fail without warning

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27
Q

Open web steel joists found in modern taxpayers , what is there fire resistance rating?

A

0 they have no fire resistance rating

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28
Q

Open web steel joists can span up ____ ft.

A

60 ft

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29
Q

Unprotected open web steel joists are particularly vulnerable to elevated temps of a fire and may collapse after how long?

A

5-10 minutes

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30
Q

When you pull up to a taxpayer and have dense black smoke pushing out what is this a sign of?

A

Back draft

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31
Q

What are 3 colors of smoke associated with a back draft?

A

Dirty brown
Yellow brown
Gray yellow

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32
Q

A room or fire area requires only ____ percent of its space to contain the explosive mixture for the entire area to explode. ( back draft)

A

25%

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33
Q

What is the most effective way to protect members from a back draft when entering the fire bldg?

A

Open roof or area over fire

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34
Q

What is a alternative method other than venting the roof to protect members from a back draft?

A

Flanking using hose streams

35
Q

In taxpayers where do most fires originate?

A

In the rear of the first floor where utilities and storage are located

36
Q

What is mechanical vent?

A

Using fans

37
Q

What is natural vent?

A

Opening made in the fire bldg

38
Q

What size roof cut should be made in taxpayers?

A

8x8

39
Q

To cut a effective hole on the roof of a taxpayer what do we need?

A

4 members

2 saws

40
Q

Who should consider calling additional ladder companies to the scene of a taxpayer operations?

A

First arriving officer should initiate this

41
Q

T or F

Roof sector supervisor has to be a chief officer?

A

False

42
Q

A engine company that’s going to use the line to vent at a taxpayer fire should do what?

A

Use a fog tip to the width of the opening 4-5 ft back

43
Q

At taxpayer fires nothing effects the outcome of an operation as what?

A

Ventilation

44
Q

At a taxpayer what is a critical factor when deciding where to cut the roof?

A

The wind

Should be at your back

45
Q

When should a chief officer be assigned to the roof of a taxpayer ?

A

When cutting is critical

46
Q

For a cellar fire at a taxpayer where should the floor be cut to vent the cellar?

A

As near to windows as possible and away from doorways and isles

47
Q

Can members operate on the roof of bowstring truss for a content fire?

A

No under no circumstances

48
Q

What is our primary tactical consideration at vacant bldg fires?

A

Exterior operation

49
Q

When timber trusses are involved in fire of BWSTG truss roof what’s our tactical procedure?

A

Exterior ops

50
Q

How do we check to see if fire has involved the truss space of a BWSTG roof?

A

Use thermal imaging camera.

Cut a triangle hole in the sloping hip section of the roof either the front or rear from a TL bucket

51
Q

Which walls are we worried about for BWSTG truss roof collapse?

A

Front and rear

52
Q

When should the 8x8 roof cut of at a taxpayer be pulled?

A

After the entire cut is done

Never allow 4x4 cut to be pulled first

53
Q

At a store fire in a taxpayer where is the life hazard greates?

A

In the rear of the store

54
Q

Where does the first line go in a store fire taxpayer ?

A

Stretch a line into the involved store

55
Q

At a taxpayer store fire where does the second engine operate

A
  1. Assist first engine with stretch
  2. If the sprinkler has not already already been supplied supply it
  3. Stretch a back up line for the first engine
56
Q

At a store fire on a taxpayer where does the third engine operate?

A

Ensures sprinkler hook up

57
Q

If you pull up first to a taxpayer fire where the fire has control of the cockloft and you have a occupied bldg attached where do you stretch the first line?

A

Into the exposure to protect it

58
Q

Where does second engine company go if u have a store fire on a taxpayer with the cockloft fully involved ?

A

Assist with first line stretch

Stretch a line to another exposure

59
Q

At a cellar fire in a taxpayer who shuts the utilities ?

A

First ladder

60
Q

Can the the first ladder officer order the plate glass windows to be vented in a taxpayer cellar fire?

A

Yes

61
Q

A cellar fire in a taxpayer , where does the first LCC operate?

A

Joins the inside team

62
Q

Where would the second ladder company operate at a cellar fire in a taxpayer ?

A

Adjoining stores and cellars

63
Q

2 nd roof man at a cellar fire in a taxpayer goes where and brings what ?

A

To the roof via a portable ladder takes saw with him

64
Q

Where does the second LCC go at a store cellar fire ?

A

Joins the inside team

65
Q

What should be our emphasis on the roof of a taxpayer that fire has seriously involved a major portion of the roof?

A

Vent holes not trenching

66
Q

Can we use a trench cut at a taxpayer fire as a defensive measure ?

A

Yes

67
Q

At a taxpayer fire when we have 2 lines operating on a advanced fire in a store what should we call for?

A

Extra engine and truck

68
Q

When would you transmit a second alarm for a taxpayer fire?

A

Extension to cockloft
Extension to adjoining occupancy
Advanced fire in the cellar

69
Q

A properly place TL can over a bldg with a frontage of _____?

A

100 ft

70
Q

A minimum of ___ portable ladders should be placed on the front of a taxpayer?

A

2

71
Q

After an initial attack of the fire at a taxpayer can we reduce the lines down to 1 3/4?

A

Yes we can

72
Q

Can a 1 3/4 line be used in exposers of taxpayer ?

A

Yes when compatible with fire conditions

73
Q

At taxpayer fires can we operate a line into a trench?

A

Yes

74
Q

At a cellar fire that we can’t get with hand lines what is our last resort?

A

Flood the first floor with Stang nozzle or TL pipe

75
Q

Cellar fire in a taxpayer what’s the first engine company doing?

A

Stretch first line into occupancy above the fire to prevent vertical extension

76
Q

At a cellar fire in a taxpayer what is the second engine doing?

A

Assist first engine with line
If sprinklered and first engine didn’t supply hook up to sprinkler
Than last stretch a back up line

77
Q

Cellar fire at a taxpayer what’s the third engines responsibilities ?

A

Ensure sprinkler system is supplied

78
Q

At a store fire in a taxpayer who must order the venting of the show windows ?

A

The IC

79
Q

What tools does first roof man bring to a store/cockloft fire?

A

Goes to roof via portable ladder

Brings saw and hook

80
Q

Where does the first LCC operate a store fire in a taxpayer ?

A

Joins forcible entry team

81
Q

Where does the first LCC operate at a store in a taxpayer if it extends to the cockloft?

A

Goes to the roof to assist roof man

82
Q

Where does the second ladder co operate at a store fire in a taxpayer ?

A

Force entry into adjoining stores

83
Q

At a store fire in a taxpayer where does the second roof man go?

A

To the roof via a second portable ladder

Brings a saw and iron OR ax

84
Q

At a taxpayer fire what are the OV tools?

A

Maul and Halligan

85
Q

Truck companies other than 1 st and 2nd should report into to taxpayer fires with what?

A

10 & 12 ft hooks and there normal tools

Taxpayers (79 decks)

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