Most Unknown Flashcards
1
Q
Which is NFPA’s model building code?
A
NFPA 5000
2
Q
What is considered to be the beams in an ordinary brick
and wood-joisted building with interior columns?
A
Floor boards
3
Q
When were the test burns conducted that were used to
create the standard time-temperature curve?
A
1918
4
Q
What is the best roof?
A
Roof beams rest on girders
5
Q
Which type of lintels are commonly used in masonry walls?
A
Reinforced-concrete
6
Q
What should the initial pump pressure be when supporting a
sprinkler system?
A
100 psi
7
Q
What can create a wind-driven fire in a high-rise
building?
A
Failure of windows on the upper floors
8
Q
What is the best way to control flammable liquid fires?
A
Keep the containers cool
9
Q
Which statement is correct about rubbish?
A
The material’s condition lends to a high rate of heat
release
10
Q
What concentrated load rating is given to the first and
upper floors in a retail store in the Building
Construction and Safety Code?
A
1000 lb (4.45 kN)
11
Q
What should be done to protect trapped fire fighters when
a rapid intervention team is sent in for rescue after a
collapse?
A
Sweep the collapsed area above the ceiling with a hose line
12
Q
What was the top layer on the walls in the Worcester Cold
Storage Warehouse which caught fire and killed six
Fire fighters in 1999?
A
Glassboard
13
Q
Since what time have lightweight wood trusses been in
general use?
A
1960s
14
Q
Up to what rating can the occupancy separation in a strip
mall be?
A
4-hour
15
Q
How many components are there in the means of egress?
A
Three
16
Q
Which is a correct statement about the load carrying
capacity of columns?
A
Columns lose strength by the square of the change in length
17
Q
At what point did a national push for the development of a
model building code?
A
1904
18
Q
What in general is the limit in the ordinary brick bearing
wall building?
A
6 stories
19
Q
What is the fundamental purpose of a sprinkler system?
A
Control the fire
20
Q
What were the exterior and interior wythes connected with
originally when hollow walls were built with hollow
terra-cotta tile?
A
Steel ties
21
Q
Since what decade has code required that a structure be
anchored to its foundation?
A
1940s
22
Q
What characterizes the three-decker type of apartment?
A
Porches on each level
23
Q
What has been eliminated in low-rise buildings up to about
70 feet in some recent designs that allows the walls to be
no thicker than 8 inches?
A
Reinforced concrete
24
Q
When winds are in excess of what speed will PPV fans be useless against them?
A
25 mph (40 kph)
25
Under which category of predicting a collapse do concentrated loads fall?
p430
Occupancy precipitators
26
What does the floor plate rest upon in the flat plate
| structural system?
Columns
27
During which stage of a fire will it spread to adjacent
| combustible materials?
Free burning
28
Which part of the building received the earliest attention in early fire testing?
Wood floors
29
What amount of open space must be present around the
covered mall building to allow for an unlimited area under
recent building codes?
60 feet (18.3 m)
30
In the South Tower, fires on which side of the building
| had ample air supply?
East
31
Up to how many floors do building codes typically allow to
| be open to the atrium?
Three
32
How long is the east wall in the FM Approvals Corner Test?
50 feet (15.2 m)
33
What does the fire resistance rating provide?
Relative measure of comparison
34
Where do the connections transfer loads in plastic design
| in steel construction?
To the building
35
What is the minimum number of fire fighters needed to make a trench cut in a row house?
Six
36
What is used to transfer loads so that spliced timber acts
| like a single timber?
Metal connections
37
When did Frank Brannigan write an article introducing the
| idea of preplanning?
1948
38
When what temperature is reached in the thermocouples
peened into columns will the column fail the fire
resistance testing?
1,300 degrees Fahrenheit (704 degrees Celsius)
39
What rating of fire assemblies are needed for an area to be classified as a control area in a hazardous materials
production building?
1-hour
40
How often should fire fighters be placed in the stairwell
| when performing stairwell support operations?
Every 2 floors
41
Where do most fires start in garden apartments?
Tenant spaces
42
How long did it take for the fire at the Los Angeles
| Central Library in 1986 to be extinguished?
7.5 hours
43
Which is NOT a correct statement about fighting fires in
| high-piled storage racks?
A 2-inch (50 mm) handline is best used until the fire is
| knocked down
44
When did Frank Brannigan first become aware of the metal
| deck roof problem?
1946
45
Which type of fireproofing for concrete protects
| individual members?
Encasement
46
During which decade were many balloon-frame houses built
with an exterior that resembled post and frame
construction?
1920s
47
When did the Worcester Cold Storage building fire occur?
December 3, 1999
48
About what size spans can rigid frames provide?
100 feet (31 m)
49
When a load is on what part of an arch may the load cause
| the arch to collapse?
Outside the center third
50
```
Which class standpipe system provides 2 1/2-inch (64-mm)
hose connections to supply water and is intended for use
by fire department personnel?
```
Class I
51
What fire resistance rating does the code require for
| columns on a concrete building?
3-hour
52
What direction is the thrust of an arch?
Outward
53
As the length of the span of a beam increases, the safe load
| capacity?
decreases in direct proportion
54
When do parapet walls often collapse?
During overhaul
55
What dictates how a fire spreads?
Heat transfer
56
Which type of window is nearly impossible for firefighting
| ventilation?
Laminated "hurricane-resistant"
57
How much per cubic foot does the Empire State Building
| weigh?
23 pounds (10 kg)
58
Which city sued a building management company to recover
costs of fighting a fire, charging the company had delayed
in transmitting the alarm?
New York
59
How many stories tall is the Monadnock Building in
| Chicago?
15
60
Which type of collapse results from a loss of localized
| load-carrying capacity?
Progressive
61
How long did the portion of the roof that collapsed at the
Military Records Center fire near St. Louis, Missouri in
1973 hold together after the start of the fire?
22 Hours
62
Where does wall formwork go out when it bursts?
Bottom
63
Who is the responsibility of sprinklers being placed on
| today?
Fire department
64
With which type of concrete is the potential for
| catastrophic collapse greatest if formwork fails?
Post-tensioned
65
When was the Eurotunnel completed?
1994
66
When was the International Green Construction Code issued
| in an attempt to regulate green construction?
2012
67
How may some tensile reinforcing bars be bent to
| accomplish the same purpose as a stirrup?
Bent up
68
What is being used in current construction to replace the
| concrete that was once used for fireproofing?
Steel
69
Where does the air come from that is used in pressurized
| stairways?
Outside the building
70
How many divisions can sprinkler impairment can be put
| into?
Two
71
What is the major risk of ventilation?
Roof collapse
72
What should the ceilings of offices on factory floors be
constructed from?
p175
Plastic panels
73
What was a major contributing factor in the Avianca
| airliner crash in 1989 on Long Island, New York?
Language
74
Which of the following is often used in the stud channels
| of walls?
Polyurethane insulation
75
What are most tests done on CO explosions made in
| connection with?
Design of containers
76
What is the proper term to be used when describing the
| floor-ceiling truss void?
Trussloft
77
What was left unprotected when performing encasement, but
| has been corrected?
Bottom web of beams
78
Which of the following is a spot-type smoke detector?
Photoelectric
79
Which test measures a material's ability to resist flame
| spread?
NFPA 253
80
How long did it take for the fire at the Los Angeles
| Central Library in 1986 to be extinguished?
7.5 hours
81
What type of collapses are usually seen in the bathroom?
Localized
82
What is a building's approximate life span?
75-100 years
83
What is considered an ideal beam?
p29
Cable
84
What type of load does the shape of a material affect its
| ability to resist?
Compressive
85
What must be used when attempting ventilation on a wood
| truss roof?
Aerial ladder
86
What type of stress is the girder subjected to when the
column is offset if the girder is not designed as a
transfer beam?
Shear
87
At what point should the use of MVUs be considered when
clearing the stairway of smoke to be used for evacuation?
p416
20 floors
88
Above what wind speed should its influence on the fire
| inside be considered?
10-20 mph
89
Which is NOT a correct statement about the effects of fire
| streams on brick walls?
The streams cause damage when the bricks are cooled to
| quickly
90
Which part of the means of egress is often given a rating
| of 20 minutes?
Corridor doors
91
What is your only option when using an aerial master
| stream to battle a wind-driven fire?
Frontal attack through the window
92
What was emitted in the 1929 fire in a Cleveland (Ohio)
Clinic in the film storage facility that killed 125
doctors, nurses, and patients?
Nitrous oxide
93
What percentage of exits stairwells were allowed to
| terminate in the building under model codes for years?
50%
94
What is the force per unit area that produces a
| deformation?
Stress
95
Which of the following has the highest peak HHR during an
| unconfined burn?
Dry Christmas tree
96
What is the rating of a horizontal exit?
2-hour
97
How often should the operator stop to check the elevator
| shaft for smoke initially when operating in Phase II?
Five floors
98
Which part of tilt slab construction should be examined
| carefully?
Openings in the wall
99
Where are electrical conduits often placed when a basement
is constructed using interlocking insulated concrete
forms?
In the foam
100
What happens when the concrete fails in steel skeleton
construction?
p345
It explodes up
101
Which part of the set up acts as an insulator when
conducting the Critical Radiant Flux Factor Covering
Systems Test?
Underlaying
102
What is stucco laid on when it is being used with a wood
| building?
Metal lath
103
Until what year was sand-lime mortar used?
1880
104
What should be done to make existing exits bigger by
| keeping the doors open?
Tie them open
105
```
How long after ignition in test No. 14 conducted by NBS in
1980 was the average gas temperature reported as 1,300
degrees Fahrenheit (700 degrees Celsius)
```
6 minutes
106
Which calculated risk is being undertaken when it is
| determined that steel does not need to be protected in a parking garage with enough air flow?
Engineering
107
During which time period did the exterior walls of mills
| in the United States switch to masonry construction?
First half of the 1800s
108
What are caissons typically constructed from?
Concrete
109
What has always been a primary objective in fire fighting
| from a historical perspective?
Fire containment
110
Which type of solar water heating system heats the water
| directly through the use of a batch collector?
Passive
111
What does the fire protection standard specify?
How the system is designed
112
At what temperature does aluminum begin to lose its rated
| strength?
350 degrees Fahrenheit (177 degrees Celsius)
113
What fire-resistance rating is usually given to fire walls?
1-hour
114
What material is used to construct the lintel commonly
| used today?
Steel
115
What is the height above the floor at which steel used to
| support roofs is NOT required to be protected?
20-30 feet (6-9 m)
116
What type of attack should be considered when fighting an
| attic space fire?
Indirect
117
Where should you climb sagging, fire-weakened wooden
| stairs?
Close to the inside wall
118
Which is the principal smoke-moving mechanism in the
| high-rise building?
Thermal energy of fire
119
Which part of tilt slab construction should be examined
| carefully?
Openings in the wall
120
What is the only way available to limit the amount of gas
| and heat produced during a fire?
Automatic sprinkler system
121
What term is used to describe the load that will bend or
| break the beam?
Bending moment
122
Where should the standpipe connection for the attack line
| be made?
Landing below the fire floor
123
How often should a structural engineer certify steel fire
| escapes?
5 years
124
Which is NOT a characteristic of mill construction?
Columns and beams are of heavy timber with steel connectors
125
Which floors in the North Tower sustained the most damage
| when the aircraft impacted it?
95 and 96
126
What marks the boundaries of the original structure in the
| dining hall at the National Fire Academy?
Cast-iron columns
127
As a minimum, how many times the height of the wall should
| fire fighters remain for safety?
One
128
Which of the following is NOT a typical departure from
true mill construction?
p233-5
Medium level combustible contents
129
What rating is often given to corridors?
1 hour
130
What fire resistance rating does the code require for
| columns on a concrete building?
3-hour
131
What was destroyed in the Alfred P. Murrah federal office
building bombing in 1995 that led to the collapse of all
of the upper floors?
Exterior columns
132
What fire-resistance rating is usually given to fire walls?
1-hour
133
How many floors must be connected as a minimum under
| today's building codes to be classified as an atria?
2
134
What type of bracing is used in high-rise buildings to
| resist the substantial wind forces that are experienced?
K-bracing
135
What should be used to fight a carpeting fire in a
| corridor?
Solid stream
136
Which utility should particular attention be paid to when
preincident planning in a restaurant?
p397
Gas
137
What gives smoke its opaqueness?
Solid particulates
