Chapter 4: Building Construction

When exposed to temperatures above ___ unprotected steel will expand and twist?

1,000 F (538 C)

The critinal temperature for steel trusses is?

1,000 F (538C)

Building construction classifications are based upon what factors?

1. Fire resistance of the structural components 2. Materials used WRONG

Which statements regarding Type IV construction are True?

1. Heavy timber construction 2. Interior structural members such as beams, colums, arches, floors and roof are made of soild or laminated wood with no concealed spaces 3. Features exterior and interiror walls made of noncombustible or limited combustible materials

The ability of Type I construction o confine a fire to a certain area can be compromised by?

1. Improperly designed heating and air-conditiong systems 2. Openings in partitions

Which statements regarding Type I construction are TRUE?

1. Structural members, such as the walls, beams, floors and roof are all made of noncombustible or limted combustible materials 2. Intended to confine a fre to a given location because only the contents of the building would be combustible, not the buidling itself

Every U.S. gallon (SI liter) of water used to suppress fire adds BLANK to the weight of the floors?

8.33 pounds (3.69 kilograms)

How much is added to the weight of floors for every U.S. gallon (SI liter) used during suppression?

8.33 pounds (3.69 kilograms)

A collapse zone must be establised when?

A defensive stragy has been adopted

The use of prefabricated wood truss systems in Type V constructions creates?

A large, open void between floors

What type of stairs typically connects no more than two levels if not required as part of the means of egress?

Access stairs

Which of the following BEST describes where the collapse zone is established?

Adjacent to any exposed exterior walls

Fuel loading is defined as the maximum heat produced if?

All combustible materials in a given area burn

Which of the following metals will be affected by heat more rapidly than steel?

Aluminum

In which roof style does the design depand on exterior walls to support its weight?

Arched

Which of the following BEST describes who determines a structure's construction classification type?

Architect, structural engineer, contractor

What part of the roof extends from wall to wall on a flat roof?

Beams

Which type of roof is used whenever large open floor spaces with limited interior support is needed?

Bowstring truss

What type of movable window has a side-hinged sash, usually installed to swing outward?

Casement

What type of roof is used to prevent ice damming?

Cold roof

Laminated timber, medium density fiberboard (MDF), and finger-jointed timber are all examples of what common building material?

Composite material

According to the National Building Code of Canada (NBCC) heavy timber constructions avoids?

Concealed spaces under floors and roofs

Which of the following BEST describes a primary dangerous building condition?

Conditons that contribute to fire spread

What part of the roof is exposed to weather?

Coverings

Steel structural members lengthen as much as 4 inches (100 mm) when heated to?

D. 1,000°F (538°C)

In what stage is structural collapse very likely?

Decay

Knowing types of doors and door hardward can help firefighters?

Either selcet correct forcible entry tools or select the right type of vertical tactical ventilation

Which of the following BEST describes the second step taken when a collapse appears to be imminent?

Establish a clear collapse zone

The International Building Code (IBC) and National Fire Protection Association (NFPA) define construction type based on the performance of the construction when?

Exposed to fire

Which of the following buildings may be exempt from local building codes?

Factory-built (mobile) homes

A structure with a one-hour fire resistance rating will withstand actual fire exposure for a minimum of one hour. True or False?

False

Building are composed of the same materials, all of which can prevent or contribute to fire growth. True or False?

False

Heated gypsum may crack and shatter when struck by cold fire stream. True or False?

False

In Type II construction, steel members are required to have significant fire-resistive coating. True or False?

False

Most building codes have 3 classes of construction. True or False?

False

Structural cpllapse does not occur without a warning. True or False?

False

Unprotected engineered steel and wood trusses can fail after 3 minutes of exposure to fire. True of False?

False

What is Type I construction?

Fire Resistive

What type of door protects openings in fire-rate walls?

Fire door

Manufactured homes built before 1976 have less BLANK than hose of current construction?

Fire resistance

What roof type is frequently penetrated by chimneys, shafts and skylights?

Flat roof

What building component's construction varies depending on its level?

Floor/Ceiling

What building components is designed to support the weight of a building and all its contents?

Foundation

What part of the window is composed of a still, slide jamb and head jamb?

Frame

What type of door may be required by building codes to be constructed of tempered material that resists breakage?

Glass door

Which of the following building materials absorbs heat as moisture evaporates?

Gypsum

What is Type IV construction?

Heavy Timber

Vertical tactical ventilation can be defined as channeling smoke from the?

Highest point in the building

What units of measurement are used in NFPA fire resistance ratings?

Hours

A building's fire resistance is measured by a rating that estimates?

How much time in hours the building can withstand fire before failing

Define H in building code?

Instead of a number indicates heavy timber memebrs

Which of the following BEST describes when structural collapse may occur?

It can occue well after the fire is extinguished

Which of the following can be the result of rapidly cooling cast iron with water?

It may crack or shatter

Which of the following movable windows includes a large number of narroe overlapping glass sections that swing outward?

Jalousie

What part of a roof's construction can be manufactured from smaller pieces of wood or light gauge steel?

Lightweight construction support system

Which of the following BEST describes walls tha support the weight of a structure or structural components

Load-bearing-walls

What type of common building material includes bricks, stones and concrete blocks?

Mansory

When a collapse is imminent, personnel ___ in the collapse zone.

May cautiously place an unstaffed master stream

Green wood has a high BLANK that affects burn rate?

Moisture content

What building components supports only its own weight and may divide 2 areas within a structure?

Non-load-bearing wall

Define Type II construction?

Noncombustible

Type III construction requires exterior walls and structural members to be constructed of?

Noncombustible materials

Define Type III construction?

Ordinary

The location of bathrooms and mechanical spaces can be indicated by roof?

Penetrations and openings

Additons to the structure, replacing fire escapes with enclosed stairways, and removing non-load-bearing walls are all type of?

Permitted structural modifications

What type of foor contains panels that retain electricity when off?

Photovoltaic (Solar) roof

Which of the following BEST describes heavy fuel loading?

Presence of large amounts of combustible materials in an area

What is the most effective defense against heavy content fuel loading?

Proper inspection and code enforcement

Define first digit in building code? I-(4)42

Refers to the fire resistance rating of the exterior bearing walls

Define the third digit in building code? I-44(2)

Refers to the floor

Define the second digit in building code? I-4(4)2

Refers to the load-bearing structural frames or columns and girders that support loads of more than one floor

Which of the following building materials perfom will uder fire conditions, but can lose strength through spalling?

Reinforced concrete

What type of door design can prevent movement of hose or equipment into a building?

Revolving door

What building component is designed to provide drainage, support snow accumulation, and resist the effects of wind?

Roof

What building component may be mounted over doors and windows to prevent illegal entry?

Security bars and grilles

What occupany type contains multiple occupany or use groups?

Seperated-use

A BLANK occupany type must meet the building code for its inetended use?

Single-use

Which of the following doors has the advantage of eliminating door swing that might interfere with use of interior space?

Sliding door

What type of stairs uses a ventilation system activated by automatic fire or smoke detection?

Smokeproof stair enclosures

What part of a traditional wood-joisted roof tends to lose strength gradually when exposed to fire?

Soild wood joist

Renovation, age of the structure, weather, and loads are all?

Structual collapse factors

Which of the following BEST describes a possible construction hazard?

The building is subject to rapid fire spread because protective features are not in place

Ventilating a rain roof will not remove smoke until?

The orginal roof is penetrated

A collapse zone for a Type IV structure should be establised when?

The structure has been weakened by repeated fires over time

Doors are classified by?

The way they operate.

Size and moisture content affected how wood reacts to fire?

True

The exterior of a building can make it appear more substantial than it is. True or False?

True

For which type of construction is flying glass the primiary collapse zone hazard concern?

Type I

Which of the following construction types has walls, floors, and ceilings that must be able to resist fire for 3-4 hours?

Type I

Which of the following constructions types offers the apperance of the Type III construction?

Type I

What construction type is composed of materials that will not contribute to fire development or spread?

Type II

BLANK construction (ordinary) has exterior walls and structural members of noncombustible or limited combustible materials, while the interior structure of studs, joists and floors are usually constructed of wood

Type III

The interior elements in what type of construction are made of soild or laminated wood with no concealed space?

Type IV

In what construction type are exterior load-bearing walls composed entirely of wood?

Type V

In which construction type is collapse influenced by the style of construction?

Type V

Which of the following types is considered to be the most collapse resistant?

Type V

Which of the following must be considered when deciding the size of a collapse zone?

Type of building construction and safety location for personnel

Nocombustible construction as defined by the Narional Building Code of Canada achieves fire safety by?

Using noncombustible materials for strctural members and other buiding assembiles.

What building component may be an assembly of studs with exterior materials on the outside and an interior covering on the inside?

Walls

Which of the following is the most common building material in North America?

Wood