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Lieutenant Test > High Rise Building Fires > Flashcards

High Rise Building Fires Flashcards

1
Q

Feb 1976 Virginia building code was modified to require a fire control room in buildings more than____ feet above the lowest level of fire dept access.

A

75

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2
Q

Two basic high rise buildings exists in the NOVA region.

A

before and after construction of February 1976

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3
Q

Class 3 standpipe systems have what diameter outlets and reducers.

A

2.5 in diameter and 1.5in reducers

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4
Q

With a few rare exceptions all NOVA high rise buildings have what?

A

At least 2 approved exits on each floor.
Enclosed stairwells.
Some type of smoke control system or compartmentation. (built after april 1991)

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5
Q

Fire walls in high rises typically have a__ fire resistive rating

A

2hr

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6
Q

Interior walls of a residential high rise ae typically constructed from?

A

gypsum board mounted to metal studs

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7
Q

Govt or newer high rise interior walls are made with ?

A

reinforced drywall which encases either a layer of wire mesh or solid sheet of lexan ploycarbonate.

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8
Q

Curtain walls may have gaps of_____ between the floor and exterior wall

A

6-12inches

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9
Q

Fire resistive measures for floor and ceiling supports systems include?

A

spray on fire proofing (intumescent coating) and suspended ceiling assemblies (membrane fireproofing)

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10
Q

Low mass concrete is _____% lighter than traditional concrete.

A

10-88

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11
Q

Traditional concrete has a density range of _____bs pcf

A

150

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12
Q

Low mass concrete can be broken down into what 2 categories?

A

Lightweight with 60-100pcf
Superlight weight less than 60pcf density

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13
Q

Low mass concrete provides a higher or lower compression strength?

A

higher. Traditional 20000psi
low mass 60000psi

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14
Q

Lightweight concrete failure occurs at __%of the designed load after____mins of fire exposure

A

80/45

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15
Q

Windows are typically made of what in high rises?

A

plate glass, tempered glass, or Lexan polycarbonante.

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16
Q

What are stairs called leading from floor to floor within in a single occupants space?

A

Accommodation stairs, also known as access or convenience stairs

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17
Q

What does a gates presence in a stairwell mean?

A

Denotes the last floor with an exterior entrance

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18
Q

Main difference between stack effect and mushrooming when it refers to smoke movement in high rises.

A

Mushrooming is when smoke is uninfluenced by external environment. Stack effect happens in tightly sealed building and the temp difference outside than inside.

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19
Q

What 5 conditions must exist for a wind driven fire to occur?

A

Fire
Failed or open window to the outside in the fire apt
Wind
Failed or open door to the outside into hallway
path to outlet

20
Q

What wind speeds can wind driven fires be possible?

A

10-20mph

21
Q

What should personnel communicate when they first reach the fire floor on wind driven fire?

A

Fire conditions to include volume, intensity and temp through the tic

22
Q

If wind driven fire exits no ____ should be performed until directed by command.

A

horizontal ventilation

23
Q

Contents of these buildings can have a rate of heat release that can allow a fire to double in size every____

A

90 seconds

24
Q

What is the area above the ceiling called?

A

plenum space

25
Q

What are the 5 basic points of operational plan for a fire in a high rise?

A

1)Determine fire floor. 2) Verify fire floor 3) Control occupants 4) Control building systems 5) Confine and extinguish fire

26
Q

Officers should consider what type of hose line in advanced fires in upper floors of high-rise buildings

A

2.5in line

27
Q

Officers should consider deploying hose from the standpipe discharge____the fire floor.

A

below

28
Q

Why should officers consider not using gated wye during high rise ops?

A

Handle could be closed or other handle opened. loss of pressure and flow if 2 lines are opened

29
Q

What is the initial alarm for a high rise fire?

A

5 Engines, 2 Trucks, 1 Rescue, 1 EMS unit, 2 Battalion Chiefs, 1 Ems supervisor

30
Q

When can elevators without fire mans service be used?

A
  1. When the 1st engine or truck have taken the stairs and determined they are safe for use
31
Q
  1. How many fire companies can be in one elevator car together?
A

2 Crews

32
Q
  1. What are the search priorities in a residential high-rise fire?
A
  1. Fire unit, exit hallways, adjacent units, unit across the hallway
33
Q
  1. What are the search priorities for a non-residential high-rise fire?
A
  1. Immediate fire floor area, floor above fire area, top floor, floors in-between
34
Q
  1. Who establishes the base area?
A
  1. 6th due engine, driver becomes Base Officer
35
Q
  1. Where is staging located on a high-rise fire?
A
  1. Two floors below the fire floor
36
Q
  1. What additional equipment should each company bring with them to staging on a high-rise fire?
A
  1. Two spare cylinders
37
Q
  1. In addition to the 2 spare cylinders, what is the minimum equipment engine companies shall bring to staging?
A
  1. 100’ 2 ½” hose bundle and 100’ 1 ¾” hose bundle
38
Q
  1. What are the responsibilities of Lobby Control?
A
  1. Unit tracking, elevator operations, building systems, stairwell identification, civilian evacuation
39
Q
  1. What are the three ventilation tactics for a high-rise fire?
A
  1. Horizontal through windows, vertical through stairwells, using the HVAC system
40
Q
  1. What is the preferred method of ventilation in a high-rise?
A
  1. Horizontal ventilation by pressurizing the attack stairwell with the intention of forcing the smoke out the fire apartment window
41
Q
  1. If there are still building occupants more than two floors above the fire in a high-rise, what ICS position should be activated?
A
  1. Search or evacuation group
42
Q
  1. What is the minimum staffing for stairwell support?
A
  1. One firefighter every two floors
43
Q
  1. Where should the search and evacuation post be setup?
A
  1. At least two floors above the highest fire floor, near the evacuation stairwell
44
Q
  1. What equipment is the priority to be moved up the stairwell by support?
A
  1. Air cylinders, anticipate no more than 15-20 min use from each cylinder
45
Q
  1. What equipment should stairwell support expect to deliver to the fire area?
A
  1. Cylinders, extra SCBAs, deployment of supplied airline, water, standpipe packs, lighting, radios/batteries

Lieutenant Test (19 decks)

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