Ch 12 Flashcards
(110 cards)
1
Q
What is the building code definition of a high rise
A
75ft or more
2
Q
What is the fire department definition of a high rise
A
Beyond affective reach of fire equipment at street level
3
Q
What are the 2 developments that made high rise buildings possible
A
Steel construction
Elevators
4
Q
What is the most obvious feature of a high rise
A
Building height
5
Q
Buildings exceeding how many stories are common place
A
60
6
Q
The earliest high ride buildings had how many stories
A
10-12
7
Q
What did the first building codes require to be enclosed
A
Stairs
Elevators
8
Q
What are modern buildings constructed without
A
Operable windows
9
Q
What type of construction do high ride buildings use
A
Fire resistant
10
Q
How long is the fire rating for the structural frame
A
2 or 3
11
Q
How long is the fire rating for floors
A
2 hrs
12
Q
Reinforced concrete uses what type of floors
A
Concrete slab
13
Q
What type of floors do steel frame buildings use
A
Structural concrete over corrugated steel
14
Q
What type of construction provides a high degree of structural strength
A
Fire resistant
15
Q
How was fire protection provided in early high rises
A
Standpipe
16
Q
What is a crutial aspect of fire protection in a high rise
A
Standpipes
17
Q
Where are standpipe risers and hose valves located
A
Stairwells
18
Q
What is one unavoidable problem with sprinkler systems
A
Variation of pressure
19
Q
What NFPA mandates the use of pressure reducing valves
A
14
20
Q
Sprinklers and stand pipes are supplied by
A
Fire pumps
21
Q
Where are fire pumps located
A
Basement
22
Q
What is required in seismic zones
A
On site water supply
23
Q
What is usually the onsite water water supply
A
Tank
24
Q
How are voice alarm systems activated
A
Automatically
25
How are voice evacuation systems zoned
But floor
26
What is a unique alarm feature in a high rise
2 way communication
27
What system is required by state or local code
Mechanical smoke removal
28
Where do code not require smoke to be removed from
Floor of origin
29
Above how many feet do codes require smoke proof exit enclosures
75
30
What approach vents the fire floor and pressurizes the floors above and below the fire
Pressure sandwich
31
Where is the fire command center typically located
1st floor
32
What is the fire rating for the command center
1 hr
33
What floor plans are hotels and office building designed with
Central core
34
What shafts are required to be enclosed
Vertical
35
What are HVAC systems in high rise designed to manage
Products of combustion
36
What is required when hoistway and elevator rooms are protected by sprinklers
Shunt trip
37
Only consider using elevators if the fire is above what floor
5
38
Above how many vertical feet is recall mandatory in all passenger elevators
Above 25
39
What type of elevators are not required to have recall
Freight
40
What is phase 1 designed to do
Protect the life of civilians
41
What elevators are required to have phase 2 operation
New
42
What prevents the door from closing if a person or smoke is in the doorway
Electric eye
43
What phase is the electric eye disabled
Phase 2
44
Where are the car controls only operable from
The car
45
How many emergency exits should there be in upper floors
2 per side
46
What direction is the primary access for underground buildings
Horizontal
47
What is the greatest single challenge of controlling underground fires
Smoke and heat ventilation
48
What type of sprinklers are required for underground buildings
Automatic
49
What is the most significant advantage of membrane structures
Large interior space
50
How many types of structures use membranes to form the shape
2
51
What are air inflated structures used for
Shops
| Weather protection
52
Air inflated structures are limited to how many stories
1
53
What structures are used more commonly that air inflated structures
Membrane
54
Where are FD hose outlets required in malls
Stairs
Entrance
Passageways
55
Shopping malls are typically how many stories
1-3
56
What is an advantage of covered malls
Exercise or shop in comfortable environment
57
Shopping malls are mainly what type of construction
Type 2 or 5
58
Current codes do not allow malls to be made out of
Wood
59
Current codes require malls to have what amount of sprinklers
Full
60
How long is the fire resistant separation between stores
1 hr
61
What malls are not required to have smoke control systems
1 story
62
Above how many stories are smoke control systems required in malls
3
63
What type of sprinkler system do newer correctional facilities have
Automatic
64
What do fire protection and life safety vary depending on in detention centers and correctional facilities
Level of restraint
65
Automatic sprinkler system address what concept
Shelter in place
66
What is the design of institutional sprinklers
Low profile
| Tamper resistant
67
How many compartments are located on each floor with shelter in place
1 or more
68
How many floors do atriums extend through
2 or more
69
What are atriums popular design features
Ventilation
| Light
70
What type of sprinklers do atriums have
Automatic
71
Atriums have fire rated construction for how many hrs
1
72
Codes eliminate fire ratings for atriums with how many stories or more
3
73
Where is the exhaust capacity calibrated
Height Above the highest walking level
74
Above how many feet are sprinkler systems waived for atriums
55
75
What type of pressure is created by an explosion
Outward
76
What is the outward pressure referred to as
Blast wave
77
What occupancies are structural designs made to reduce the damage from an explosion
Flammible liquids
| Combustible dusts
78
How can structural damage from an explosion be mitigated
Containment
| Venting
79
What is the max pressure from and explosion
10xs the atmospheric
80
What is used to quickly relieve the pressure from an explosion
Explosion vents
81
How are vent closures designed to operate
Low internal pressure as possible
82
Explosion vents should not weigh more than how many lbs
3
83
What material is used for explosion vents
Corrugated steel
84
When is the path of pressure determined
Preincident walk through
85
What is the area of refuge designed to accommodate
1 or 2 wheelchairs
86
What type of sprinklers and standpipe risers do area of refuge use
Automatic
87
What are logical areas for areas of refuge
Elevator lobbies
| Exit stair landings
88
What communication system is required for areas of refuge
2 way
89
What is the smoke barrier rating for areas of refuge
1 hr
90
How are racks usually arranged
Back to back
91
What type of rows are back to back racks
Double
92
Racks are usually wider than how many feet
12
93
Isles are usually narrower than how many ft
3.5
94
What is the height range for storage racks
12 to over 100ft
95
What are the 2 modes new ceiling sprinklers operate in
Control
| Suppression
96
What phase is the emergency stop button active
2
97
What does horizontal fire extension depend on
Partitions that subdivide the floor
98
Limited access buildings have what kind of sprinklers
Full
99
How wide are mall walkways
Min of 20
100
What NFPA is for valves
14
101
What phase is the emergency stop button inoperable
1
102
What does the membrane weigh that is used on air supported buildings
Only a few oz per sq ft
103
What explosion produces no chemical reaction
Boiler
104
What does the damage to a building from an explosion depend on
Pressure
Rise
Duration
105
Who long is the fire rating between a day care and restuarant
2 hrs
106
What phase is the electric eye disabled
2
107
What is a large well known perimeter store
Anchor store
108
What roof has a degree of slope similar to a Gable roof
Hip
109
What are elevator cables made out of
Flat Polyethylene coated steel belts
110
What hoistways are not required to be enclosed
Atrium
