Building Construction For The Fire Service Flashcards

1
Q

Declaring a fire a “Structure Fire” indicates what?

A

That the buildings structure is involved and the gravity resistance system of the building is under attack.
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2
Q

A “Prefire Analysis” is a step beyond prefire planning, this allows fire personnel to do what?

A

To anticipate problems.
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3
Q

In general, what 4 types of forces can be applied to a buildings structural members?

A

Compression
Tension
Torsion
Shear
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4
Q

Regarding Buildings, Define Dead Load ( also called Self Weight)

A

The weight of the building itself and any equipment permanently attached to it, or built in.
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5
Q

Define Live Loads.

A

Any loads not permanently attached to the structure.

Any loads other than the dead loads.

15

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6
Q

Define Impact Loads.

A

Loads delivered over a short time.
SUDDEN IMPACT
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7
Q

Define Static Loads

A

Loads that are applied slowly and remain constant ( a heavy safe)
SLOW AND CONSTANT

21

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8
Q

Define Repeated Load

A

A load that is applied intermittently (rolling bridge crane)

BOUNCING REPEATEDLY

21

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9
Q

How are Axial and Eccentric loads different?

A

Axial loads transfer force through the center section. Eccentric loads do not transfer force through the center.
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10
Q

If a building itself is combustible, does the building add to the fire load?

A

Yes!!!
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11
Q

In a truss the top chord is in compression and the bottom chord is in tension. What happens to the truss when it is cantilevered?

A

The forces reverse.
Top = Tension
Bottom = Compression
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12
Q

Is it necessary for a Column to be in a vertical orientation?

A

No.
Any structural member that is compressively loaded can be a Column.
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13
Q

If a brick wall has header and stretcher courses, what does this likely indicate?

A

That the wall is load - bearing.
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14
Q

This type of mortar was used until about 1880. It could be washed out with water.

A

Sand Lime Mortar.
46

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15
Q

Steel heated to 1000°F will elongate how many inches per 100 feet?

A

9.5 inches
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16
Q

Pylons are driven through soft ground to bedrock. This forms a solid foundation for a building. Pylons are usually made of what?

A

Large timbers or wood.
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17
Q

What are caissons usually made from?

A

Concrete.
81

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18
Q

Define the sizes of each type of structural member.
Board
Dimensional Lumber
Timber

A

Board = less than or equal to 2in nominal thickness.
Dimensional Lumber = 2-4 in nominal thickness.
Timber = greater than or equal to 5in nominal thickness.
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19
Q

Define Nominal Thickness.

A

The thickness of Lumber prior to kiln drying.
70

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20
Q

OSB is made from wood pieces that are how long?

A

3-4 inches.
70

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21
Q

Concrete is composed of what 3 materials?

A

Portland Cement
Water
Aggregate
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22
Q

Structural Steel fails at what temperature range?

A

1,000-1,100°F
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23
Q

Cold Drawn Steel (Cables or Tendons in tensioned concrete) fails at what temperature?

A

800°F
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24
Q

What happens to Cast Iron that has-been heated then rapidly cooled by a hose stream?

A

It fails. Due to becoming brittle.
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25
Q

What type of fire conditions can melt Aluminum?

A

Typical fire temperatures
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26
Q

What is the main fire Hazard with EIFS (Exterior Insulation Finishing System) panels?

A

The outside panel falls if under fire conditions, exposing the combustible plastic insulation.
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27
Q

What is an area of a building that has fire rated smoke doors and can remain tenable for a period of time called?

A

Area of Refuge.
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28
Q

What is the major difference between Building Codes & Fire Codes?

A

Building Codes regulate the construction of a building.
Fire Codes regulate the use of a building after it is built.
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29
Q

Define a Model Code.

A

Complete Regulatory Codes that can be adopted by cities & states as they are written.
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30
Q

Define the 5 types of construction.

A

Type 1 = Fire resistive
Type 2 = Non-combustible
Type 3 = Ordinary
Type 4 = Heavy timber
Type 5 = Wood frame
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31
Q

What is the fire rating requirement for stairwells up to 3 stories VS 4 or more stories?

A

Up to 3 stories = 1 hour fire rating.
4 stories or more = 2 hour fire rating.
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32
Q

The Americans with Disabilities Act was passed in what year?

A

1990
101

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33
Q

What are the 4 parts of the Fire Tetrahedron?

A

Fuel
Heat
Uninhibited chemical chain reaction
Oxidizing agent
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34
Q

What are the 3 methods of heat transfer?

A

Conduction = within an object or between objects through direct contact.

Convection = transfer of heat through a gas or liquid

Radiation = transfer of heat through electromagnetic waves.

107

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35
Q

A fire that is not ventilation limited will pass through what 4 stages?

A

Incipient = initial stage after ignition

Free Burning = spreads to adjacent combustible material

Flash over = when exposed surfaces ignite simultaneously

Smoldering / Decay = glowing combustion takes place without combustion

108

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36
Q

Define Flameover.

A

When hot, unburned gases suddenly ignite.

108

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37
Q

Winds over what MPH range should become a tactical consideration at a fire scene?

A

10 - 20 MPH.
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38
Q

What are the 4 types of sprinkler systems?

A

Wet Pipe

Dry Pipe = air in the pipes. Used in freezing areas

Preaction = air in pipes but a separate detector must initiate water flow. Good where damage may occur.

Deluge = all heads are open, separate detector initiates water flow, mostly for flammable liquids
152

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39
Q

A ESFR (Early Suppression/ Fast Response) sprinkler head has what size orifice and can flow how many GPM?

A

3/4 inch orifice
100 GPM
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40
Q

According to the author of Building Construction, High Rise fires should be fought with what size hoselines?
What type of nozzle?
Why?

A

2 1/2 inch.
Smooth Bore.
Their reach, penetration and ability to operate at the lower operating pressure provided by standpipes

165

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41
Q

Carpet of fire in a corridor should be fought with a solid stream.
What technique should be used?
Why not use a fog stream?

A

Solid stream directed through the fire to wet the carpet beyond the fire, stopping extension.

Fog streams are known to push the fire down the corridor.
171

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42
Q

Emergency Power systems have __ seconds to provide power.
Standby Power systems have __ seconds to provide power,

A

Emergency Power = 10 seconds.

Standby Power = 60 seconds.
183

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43
Q

Large commercial boilers can provide up to ___ PSI for hot water.

A

160 PSI
184

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44
Q

What is one of the biggest issues with HVAC systems for firefighters?

A

The ability for smoke to be circulated throughout a building during a fire.

184

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45
Q

Natural gas mains may contain up to ___ psi.

Residential gas lines have regulators that cut the pressure down to ____ to ___ psi.

Commercial buildings may require pressures as high as _ psi to supply large equipment.

A

Mains 100 psi.

Residential 0.25 psi - 0.5 psi

Commercial buildings 5 psi

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46
Q

Hydraulic Elevators are typically limited to buildings of _ to _ stories.

A

5 to 6 stories
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47
Q

Describe Phase I, II & III Elevator operations

A

Phase I = elevator is recalled to a specific floor (usually the first floor lobby). Triggered by a smoke detector activation. When the elevator reaches the predetermined floor, its doors will open to let occupants out. Doors stay open for FF’s to use.

Phase II = Used by FF’s with a special key. Normally after Phase I brings the elevator down to the lobby.

Phase III = Used prior to Phase I by occupants for Evacuation. Special Elevator shafts that water & smoke protection. Also have communication systems.

190 & 191

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48
Q

On an Escalator, does pushing the “Emergency Stop” remove power from the system?

A

No. The main power disconnect is usually near the motor (top of escalator) under the inspection plate.

192

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49
Q

Refrigerants such as Freon were banned many years ago due to their effect on the environment. All new refrigerants are increasingly _________?

A

Flammable.
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50
Q

If Carbon Dioxide (CO2), typically used in restaurants, is leaking, where will it collect. Floor or ceiling?

A

Floor.
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51
Q

In terms of Wood Frame Construction. Define the term Legacy Construction.

A

The use of solid wood members as opposed to lightweight wooden trusses or I-joists.

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52
Q

How should a lightweight wood truss roof be accessed if it must be ventilated, while the roof itself is on fire?

A

Must use an aerial device.
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53
Q

What is the flammability range of CO?

A

12.5 % to 74%
214

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54
Q

What is the ignition temperature of CO?

A

1128°F
214

55
Q

Roofing materials are classified as A,B & C for fire resistance. What classification is the LEAST fire resistive?

A

C
225

56
Q

Collapse of a buildings floor(s) in which one end of the floor is still supported, and a triangle void space is created.

A

Lean-to-floor collapse.

Pg 429

57
Q

In a floor collapse, with each floor (roof), laying flat on top of the one below.

A

Pancake collapse.

Pg 429

58
Q

Voids are less prevalent in this type of collapse and tend to be limited to areas surrounding furniture and other large objects.

A

Pancake collapse.

Pg 429

59
Q

A collapse in which the floor fails near its center, with the perimeter of the floor still partially supported by the walls.

A

V-Shaped collapse.

Pg 429

60
Q

A collapse that occurs when a relatively small area of structural damage results in a loss of a localized load carrying capability, initiating a chain reaction.

A

Progressive collapse.

Pg 429

61
Q

A collapse in which one end of the floor is still supported.

A

Cantilever floor collapse.

Pg 431

62
Q

A collapse in which the exterior wall falls horizontally.

A

Inward outward collapse.

Pg 431

63
Q

A collapse in which an entire wall fails as one unit.

A

90-degree wall collapse

Pg 431

64
Q

A collapse characterized by a building that shifts at the upper levels, leaning into adjacent buildings, or totally collapsing in the absence of adjacent buildings. (Usually limited to wood frame structures)

A

Lean Over Collapse.

Pg 431

65
Q

A collapse in which the wall falls straight down, often associated with brick veneer, non-load-bearing walls.

A

Curtain Wall Collapse.

Pg 431

66
Q

Which particular type of collapse is a specific concern during search and rescue operations?

A

Secondary Collapse.

Pg 429

67
Q

Pancake collapse occurs because the connection between the floor and the ________ is lost

A

Load Bearing Wall is lost

Pg 429

68
Q

At around 1000 degrees, steel will expand how much per 100 feet?

A

9 1/2 inches

Pg tba

69
Q

Steel will expand 0.06 to 0.07 percent in length for each ____ degree rise in temperature.

A

100

Pg TBA

70
Q

Short high rises are type ___ construction and tall high rises are type ___ construction.

A

Type 2
Type 1

Pg TBA

71
Q

The weight of all materials of construction incorporated into a building, including but not limited to walls, floors, roofs as well as fixed service equipment, including the weight of a cranes.

A

Dead load

Glossary

72
Q

What are steel frame buildings known as?

A

Butler Buildings

Pg TBA

73
Q

What are interlocking wood pieces that are glued together to create a longer piece of dimensional lumber.

A

Finger Joints

Glossary

74
Q

A situation in which unburned fuel gases, having gathered in sufficient quantities at the ceiling layer, suddenly ignite.

A

Flameover

Glossary

75
Q

What is the ignition temperature for carbon monoxide?

A

1,128 degrees

Pg TBA

76
Q

Another common name for Flameover.

A

Rollover

Glossary

77
Q

A collapse in which one end of the collapsed floor is supported by an interior wall, creating two void spaces.

A

A-Frame collapse.

Pg 431

78
Q

What are the 4 categories of heavy timber construction? (4)

A

A
B
C
HT

Pg 242

79
Q

Large stores attached to a mall with all required exits independent of the mall.

A

Anchor Store.

Glossary

80
Q

What is category A in Heavy Timber construction?

A

Type 4 A: Up to 18 stories provided the mass timber is covered with gypsum board

Pg 242

81
Q

What is category B in Heavy Timber construction?

A

Type 4 B: Maximum 12 stories with limited areas of walls and ceilings exposed.

Pg 242

82
Q

What is category C in Heavy Timber construction?

A

Type 4 C: Maximum 9 stories with all timbers exposed and subject to 2 hour fire resistance test.

Pg 242

83
Q

What is category HT in Heavy Timber construction?

A

Type 4 HT: Traditional heavy timber

Pg 242

84
Q

What type of force occurs WITHIN a building member when opposing forces pull the member in opposite directions. Often the result of wind load.

A

Shear force

Pg 13

85
Q

What type of force stretches a member such as a steel cable?

A

Tension/Tensile

Pg 13

86
Q

What type of force is a twisting force?

A

Torsional force (Torsion)

Pg 13

87
Q

What is a term meaning 1000 pounds?

A

KIP

Pg 13

88
Q

What type of load is indeterminate and must be estimated based on projected use of the building and other variables.

A

Live Load

Pg 15

89
Q

What type of load is delivered in a short time?

A

Impact load

Pg 20

90
Q

What type of load is delivered over time?

A

Static load

Pg 20

91
Q

What type of impact load can be delivered from a direction that has little or no stress resistance.

A

Lateral impact load.

Pg 20

92
Q

What type of load is applied intermittently?

A

Repeated load

Pg 21

93
Q

Header courses can be seen usually every ____ row.

A

7th row

Pg TBA

94
Q

What type of load is a heavy load located at one point in a building?

A

Concentrated Load

Pg 23

95
Q

What are the internal forces that resist loads?

A

Stress and Strain

Pg 13

96
Q

There are two estimates for caloric value: wood at _____ BTU/ LB and plastic is _____ BTU/ LB.

A

Wood at 8,000 BTU/ LB
Plastic at 16,000 BTU/ LB

Pg TBA

97
Q

A beam is built with a _____, or upward rise, so when the design load is superimposed, the beam will be more nearly horizontal.

A

Camber

Pg 27

98
Q

The line in which the length of the beam does not change under load is called?

A

Neutral axis

Pg 28

99
Q

Determining the fire load of a building requires 3 pieces of information, what are they?

A

Weight of the material
Caloric value
The floor area

Pg 25

100
Q

A beam supported at 2 points, near its ends, is a what?

A

Simple Beam

Pg 29

101
Q

A beam supported at 3 or more points, is a what?

A

Continuous Beam

Pg 29

102
Q

What are the 3 types of columns?

A

Piers columns
Long slender columns
Intermediate columns

Pg TBA

103
Q

Piers are short columns that fail by what?

A

Crushing

Pg TBA

104
Q

A beam that is supported at 2 points and is RIGIDLY held in position at both points.

A

Fixed Beam

Pg 29

105
Q

Long slender columns fail by what?

A

Buckling, normally assumes an “S” shape

Pg TBA

106
Q

Intermediate columns can fail by what?

A

Either way, by crushing or buckling

Pg TBA

107
Q

What is a beam that spans an opening in a masonry wall?

A

Lintel

Pg 30

108
Q

Wind loads are an example of what force?

A

Flexural force

Pg TBA

109
Q

A beam supported at only one end, but is RIGIDLY held in position at that end?

A

Cantilever Beam

Pg 30

110
Q

A very long, thin column will fail according to____.

A

Euler’s law column

Pg 37

111
Q

A load-bearing wall common to 2 structures.

A

Party wall

Pg 39

112
Q

Walls can be braced or stiffened by what means? (4)

A

Buttress
Pilaster
Wall columns
Cavity or Hollow wall

Pg 41

113
Q

What are the types of wood frame roofs styles? (7)

A

Flat roof
Gable roof
Mansard roof
Shed or single pitch roof
Saltbox roof
Hip roof
Gambrel roof

Pg 42

114
Q

What is another name for a gusset plate in a light-weight wood truss?

A

Gang Nail

Pg 46, 52

115
Q

Wood less than or equal to 2” nominal thickness.

A

Board

Pg 70

116
Q

Wood that is 2”-4” nominal thickness.

A

Dimensional Lumber.

Pg 70

117
Q

Wood that is greater than or equal to 5” in nominal thickness.

A

Timber.

Pg 70

118
Q

What are the 3 negative characteristics of structural steel?

A

Conducts heat
Elongates when heated
Fails at about 1000 to 1100 degrees

Pg TBA

119
Q

How far should your safety zone be around a high rise with falling glass?

A

200 feet around the building

Pg TBA

120
Q

NFPA 13 is the standard for the installation of what?

A

Sprinkler systems

Pg TBA

121
Q

Aluminum will melt around _____ degree Fahrenheit

A

1,200

Pg 115

122
Q

What temperature does Cold-Drawn steel fail?

A

800°

Pg 81

123
Q

What is the most common type of cement in use today?

A

Portland cement mortar.

Pg 82

124
Q

What is the most prevalent and toxic fire gas?

A

Carbon Monoxide

Pg 121

125
Q

Haber’s Rule:

Any exposure in which the concentration (ppm) times minutes exposed equals ______ is likely to be dangerous.

A

33,000

Pg TBA

126
Q

What are the 4 components of the fire tetrahedron?

A

•Fuel
•Heat
•Oxidizing agent
•Uninhibited chemical chain reaction.

Pg 106

127
Q

What is the phenomenon in which combustible material ignites without the application of a flame or spark?

A

Autoignition.

Pg 107

128
Q

The vertical spread of fire on the exterior of a multi-story building via convection and radiation is called what?

A

Autoexposure.

Pg 130

129
Q

What are the classification of the steiner tunnel test and their scales?

A

•Class A 0-25
•Class B 26-75
•Class C 76-200

Pg 141

130
Q

What are the 4 types of smoke management?

A

Pressurized smoke control
Purge
Zones smoke control
Air flow

Pg 168

131
Q

Elevator door restrictors will activate when the elevator cab is located how far above or below the “landing zone”?

A

18 Inches

Pg 191

132
Q

What is a Flitch Plate Girder?

A

A composite of steel sandwiched between 2 solid sawn wood joists.

Pg 221

133
Q

What is “CLT” in Heavy Timber Construction?

A

Cross Laminated Timber

Pg 242

134
Q

For each 100° degree rise in temperature… steel will expand how much?

A

0.06 to 0.07 percent