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MTech Test > Mid-Rise Building FIres > Flashcards

Mid-Rise Building FIres Flashcards

1
Q

Define a mid rise building?

A

Three to six stories in height but has less than 75’ from the lowest level of FD vehicle access to the floor of the highest possible occupible story.

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2
Q

Most of the commercial and older residential buildings will have what type of roof?

A

Flat

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3
Q

When a mid rise has a combination of several types of construction how should it be treated?

A

According to the construction method with the lowest fire rating

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4
Q

What is the flat roof assembly of early mid-rise building most often constructed with?

A

2x8 or 2x6 joists set 16-24” on center using dimensional lumber covered with 1x4 planks and sealed with tar and gravel

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5
Q

Typical gable roofs have what size joists and what basic consturction?

A

2x6 spanning from the bearing walls to the ridge pole and 1x6 planks that are sealed with slate or tar shingles.

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6
Q

What is the rating of pull-down staircases for attic access?

A

250lbs and should not be used if exposed to heat

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7
Q

With ordinary construction mid rise floors are typically made of?

A

2x6 or 2x8 joists supporting 1x4 wood planks covered in hardwood or parquet flooring. Joists are normally spaced 16” on center

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8
Q

What windows were typically found in mid rise buildings of ordinary construction?

A

Residential-double hung or casement

Commercial-plate glass

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9
Q

What construction type are most commercial occupancies?

A

Non-combustible construction

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10
Q

How is the roof of a non-combustible mid-rise typically constructed?

A

Insulated metal deck roof and/or concrete with a weather barrier installed

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11
Q

When fire extends to the roof of a non-combustible building and the vapors released by the hydrocarbon roofing materials ignite and spread fire under the roof area, this is called?

A

A running metal deck roof fire

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12
Q

Window construction in non-combustible mid rises?

A

Residential- double hung or sliding glass

Commerical- Plate

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13
Q

Accommodation stairways?

A

Stairways present when an occupant leases or owns multiple floors–allows to traverse floors without using the buildings public stairways

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14
Q

When did lightweight wood construction begin replacing ordinary and dimensional wood frame construction?

A

1980s

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15
Q

What is a draft stop?

A

Typically gypsum or plywood and act as a partition to help slow the horizontal movement of fire

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16
Q

What size lumber will be used in the first floor of a light weight construction mid rise of 3 stories or higher?

A

2x6

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17
Q

What are the three types of balconies that may be present on a lightweight mid-rise?

A

Hinged, cantilevered or recessed

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18
Q

Recessed balcony?

A

Supported on three sides by bearing walls; railing between the two walls and the balcony is open only on one side

19
Q

Hinged Balcony?

A

Found on corner units, supported by two sides by bearing walls and columns on the corner from the ground to the roof

20
Q

When using a NFPA 13R residential sprinkler system what color is the pipe usually?

A

Usually orange

21
Q

Residential mid-rise fire flow?

A

10gpm per 100sqft involved area–use 1 3/4

22
Q

Commercial mid-rise fire flow?

A

20gpm per 100sqft–use 2 1/2 line or two 1 3/4’s side by side

23
Q

Lightweight wood frame construction has two distinct factors with regard to the potential for collapse?

A
  • The presence of lightweight trusses

- Fire entering the void spaces degrading the wooden structural members

24
Q

If a burning object is lodged in a shaft what is an effective suppression method?

A

Drop a heavier object from above therefore dislodging the burning object

25
Q

If the mid rise is equipped with a standpipe system what actions must be taken?

A

First due engine reports that there is or is not one and an engine company must supply the system regardless of whether initial hoseline is deployed from an engine.

26
Q

If the decision is made to treat the building as a high rise what should be requested?

A

The fifth engine

27
Q

If the standpipe is to be used in a mid-rise what must be stated over the radio?

A

Assume high rise assignments

28
Q

If the decision on mid-rise fire is to stretch off of in the engine instead of using the standpipe what must be know?

A

Location of the fire.

29
Q

In residential mid-rises what floors normally have an identical layout?

A

All floors above the first floor

30
Q

Before the second line’s crew commits to the position of the initial line what should they check?

A

Basement or floor(s) below the fire to ensure the fire did not originate below the unit where smoke or fire is evident

31
Q

Before initiating fire attack on a mid-rise basement fire what must be confirmed? If attacking the fire through an exterior entrance.

A

The door from the fire unit to the public hallway is closed

32
Q

In a mid-rise garage fire, if the fire has spread to the living area where should the fire attack begin from?

A

From the living area

33
Q

What is the slowest method for fire attack for above grade fire in a garage?

A

Using the FDC

34
Q

If preconnect handlines are stretched for a fire in a parking garage with an FDC, does the FDC need to be supplied?

A

yes

35
Q

What are the two top causes of fires that originate in the attic in a mid rise building?

A

Equipment located in the attic or lightning strikes

36
Q

What are the factors that must be considered prior to assigning crews to perform roof top ventilation on a mid rise?

A
  • Roof support system: lightweight or conventional
  • Height of the building–operating on roofs of buildings above 4 floors without aerial assistance is questionable
  • Pitch of the roof
  • Extent of fire in attic
  • Availability of support equipment (hoselines, ladders, etc)
  • Progress made on the top floor below the involved attic
  • Condition and integrity of roof
37
Q

What are the options if a victim is found?

A
  • Protect in place
  • Removal to an uninvolved unit or balcony
  • Removal via the interior stairs
  • Removal over a portable ladder or aerial device
  • Drywall breach to an uninvolved area
38
Q

What is the priority for ladder placement?

A
  1. Fire unit
  2. The unit above the fire
  3. Adjacent to the fire unit
  4. Any other unit where smoke is evident
39
Q

In a situation where crews are operating in an IDLH environment out of the reach of ground ladders but within access of the aerial what must the aerial operator do?

A

Remain at the turntable ready to position the aerial as needed to effect rescues from upper floors

40
Q

When can elevators be used in fire operations on a mid rise?

A

Only after the first unit has climbed the stairs and assessed the situation, at that point they must advise command if the elevators can be used.

41
Q

What is the minimum complement of tools the truck/rescue should bring on a mid-rise fire?

A
  • radios
  • hand lights
  • hooks
  • set of irons
  • a hydraulic door opener
  • water can
  • TIC
  • lifeline pack
42
Q

The second due truck should make sure what stairway has been identified and clear of smoke?

A

Evacuation stairway

43
Q

Rescue squads responsibility upon making the fire floor?

A
  • deployment of a tagline from the attack stairway
  • FE on the adjacent units
  • Coordinating the evacuation of occupants
  • assessment of fire extension
  • horizontal ventilation
  • depending on number and type of hoselines deployed, may assist in the movement and operation of hoselines

MTech Test (19 decks)

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