Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Building Construction > Ch 2, building classification, structural fire resistance > Flashcards

Ch 2, building classification, structural fire resistance Flashcards

1
Q

Four factors that influence fire behavior

A

Basic building classifications
Occupancy classifications
Fire or fuel load
Fire resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Type I construction

A

Fire resistive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Type II construction

A

Non-combustible or protected non-combustible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Type III construction

A

Exterior protected (masonry)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Type IV construction

A

Heavy timber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Type V construction

A

Wood frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Building classifications using the building code are based on

A

Materials used in construction and fire resistance rating of structural components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The major classifications are further divided into two or three sub classifications with the exception of

A

Type IV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In NFPA 220 each building classification is designated by a three digit number code. Each digit stands for.

A

First digit, fire rating, in hours of exterior bearing walls
Second digit, fire resistance, rating of structural frames or columns that supports more than one floor
Third digit fire resistance, rating of floor construction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Construction that is classified by the presence of noncombustible structural components that have fire resistance ratings within a specified range

A

Type I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Steel is noncombustible, but not fire resistant so it must be

A

Protected to attain fire resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The addition of fire resistance increases

A

Structural integrity during a fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

True/false a type I building is less likely to collapse on firefighters

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fire resistance rating in hours for a type I building for the loadbearing walls, columns, and beams

A

2 to 4 hours, as specified by local code and classification

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Type I floor construction fire rating in hours

A

2 or 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Type I roof deck and construction supporting roof rating hours

A

1-2 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Interior partitions enclosing stairwell and corridor fire rating for type I

A

As specified by the local code, usually one or two hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Partitions separating occupancies or tenants

A

As specified by local code

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Type I buildings are most commonly constructed using

A

A protected steel frame or reinforced concrete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Fire resistant components, do not contribute to fire extinguishment, but does

A

Collect heat from a fire and give off radiant heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Unprotected steel has no

A

Fire resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What can be adjusted in protected steel to meet a number of fire ratings?

A

The thickness of the insulating material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Reinforced concrete can fail under an explosion or

A

Intense fire of long duration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

True/faults building codes, usually permit a limited use of combustible materials and type I construction

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

In Type I construction a code may allow the use of __________ wood in roofs or interior partitions

A

Fire retardant treated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

In type I construction combustible materials are allowed for use in the following

A

Roof coverings
Interior floor finish
Interior wall finish and trim
Door and door frames
Windows
Platforms
Nail and furring strips
Light transmitting plastics
Foam plastics, subject to restrictions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Type II allows for a wider range of __________ than type I

A

Materials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

In addition to steel __________ can be used in type II with limited structural role

A

Steel and concrete block
Glass and aluminum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

True/false building codes do not allow the use of combustible material in type II construction for application similar to those Type I

A

False. It does allow it to

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Some building codes contain a provision to omit virus assist of ratings for roof construction and type II buildings for some occupancy types when the roof is located more than __________ feet above the floor

A

20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Type II can be classified and inspected as a type I building if

A

Omission of fire resistant roof construction due to it being more than 20 feet above the floor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Type IIA (protected) requires that structural components, have a __________ hour fire resistance

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Type II-B (unprotected) allows structural components to

A

Remain unprotected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

An unprotected noncombustible type II-B construction the major structural components have

A

No fire resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

The most common characteristic of unprotected non-combustible construction type II B

A

The use of unprotected steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

An unprotected non-combustible building cannot be expected to provide __________ under fire conditions

A

Structural stability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Type III exterior protected is commonly referred to as

A

Ordinary construction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

In type III interior, structural components that are permitted to be partially or holy combustible include

A

Walls
Columns
Beams
Floors
Roof

39
Q

Type III exterior walls are frequently constructed of masonry, but from a technical standpoint, any __________ can be used for the exterior walls

A

Non-combustible material with required fire resistance

40
Q

Type III has two subclass vacations, allowing the interior structural components to be

A

Protected or unprotected

41
Q

Type III A means

A

Structural components are protected

42
Q

Type III B means

A

Interior structural components are unprotected

43
Q

In type III A, structural components, can be protected by several means, including

A

Plaster in older buildings
Gypsum board in newer buildings

44
Q

In type III B, unprotected steel is sometimes used to support

A

Combustible members such as a combustible roof deck

45
Q

Type III commonly uses nominal ________ joists for floor construction

A

2“ x 10“

46
Q

Nominal dimensions are

A

Not exact measurements

47
Q

A fundamental fire concern with type III CONSTRUCTION IS

A

The combustible concealed spaces created between floor and ceiling joists in between studs and partitions

48
Q

Concealed spaces in type III construction must contain appropriate

A

Fire stops

49
Q

When structural components are combustible firefighters cannot assume any

A

Level of structural stability

50
Q

Type IV construction is commonly known as as ________ or ________ construction

A

Heavy timber or mill

51
Q

Like Type III construction, the sterile walls in type IV are

A

Normally of masonry construction

52
Q

Interior structural components of type IV are

A

Combustible

53
Q

In type IV construction, the beams, columns, floors and roofs are made of

A

Solid or laminated wood with dimensions greater than type III

54
Q

Concealed spaces are not permitted between structural components in type

A

Type IV

55
Q

Type IV construction is the only construction type that does not include ________ subdivisions

A

A and B

56
Q

Instead of Type IV having A and B sub classifications, the designation ________ is used

A

2HH

57
Q

In type IV 2HH, structural components indicated are of ________ with minimum dimensions greater than those used in ________ construction

A

Heavy timber greater than Type III or type V

58
Q

If members in type IV have not been exposed to a prolong fire. They may be cleaned of charring and.

A

Remain in place after a fire

59
Q

Type IV heavy timber requires minimum nominal dimensions of _______ for floor dimensions

A

6x10

60
Q

Modern type IV is primarily used for _________ purposes

A

Aesthetic

61
Q

Many type IV buildings have been converted from their original applications of

A

Mills
Factories
Warehouses

62
Q

Primary fire hazard of type IV

A

Large fuel load present in structural supports.

63
Q

In type, V construction, all major, structural components are permitted to be of _________ construction

A

Combustible

64
Q

Many type V structures are required to have _________ hour fire resistance for structural components

A

One hour

65
Q

The basic method of construction in a type V building consists of using a _________ frame to provide the primary structural support

A

Wood

66
Q

The fundamental problem with type V construction is

A

The presence of extensive concealed voids

67
Q

A heavily involved wood frame building also presents an exposure threat, therefore building codes, impose restrictions on the _________ of the buildings

A

Maximum allowable height and area

68
Q

In modern practice, woodframe buildings are most often constructed using a method known as

A

Light frame construction

69
Q

_________ construction eliminated heavy posts and beams and made use of smaller studs, joists and rafters

A

Light frame

70
Q

_________ construction occurs where a new structure is built onto an existing structure of a different construction type

A

Mixed construction

71
Q

_________ and _________ are used together in building codes to establish limitations on the permissible heights and open areas of buildings

A

Building construction and occupancy classification

72
Q

Classifying buildings, according to occupancy facilitates the administration of

A

A code

73
Q

One important occupancy factor is the capacity of the building because crowd density can affect the rate of _________

A

Egress during an emergency

74
Q

International building code, IBC contains 10 major occupancy classifications:

A

Assembly group a
Business group B
Educational group E
Factories group F
High hazard group, H
Institutional group, I
Mercantile group M
Residential group R
Storage group S
Utility and miscellaneous group U

75
Q

Although one and two family dwellings no more than three stories high are classified as R they are governed by a separate code called

A

International residential code

76
Q

NFPA 101 identifies 12 major occupancy classifications

A

Assembly
Educational
Daycare
Healthcare
Ambulatory healthcare
Detention and correctional
Residential
Residential board and care
Mercantile
Business
Industrial
Storage

77
Q

Buildings frequently contain occupants that represent more than one occupancy classification. This is known as.

A

Mixed occupancies

78
Q

To alleviate the problem of mixed occupancies building codes may require

A

Fire resisted separation between various occupancies

79
Q

Infant care center, and a restaurant located in the same building can be required to be separated by a _________ hour fire resistance separation

A

2

80
Q

Fuel load the total quantity of combustible material in a compartment is the critical factor when determining _______of a space

A

Fire safety requirements

81
Q

_________ is the maximum amount of heat that can be released if all fuel is consumed

A

Fire load

82
Q

The fire load will vary depending on

A

The heat of combustion of the fuel

83
Q

_________ contributes to the calculation of the fire load

A

Fuel load

84
Q

_________ is the product of the weight of the combustibles multiplied by their heat combustion expressed in pounds per square foot

A

Fire load

85
Q

Buildings with _________ have an inherently greater fire load than noncombustible construction because the structural framing contribute to fuel in a fire

A

Combustible structural components

86
Q

Material in the form in which it is used and under the conditions and anticipated will not ignite burn support, combustion or release flammable vapors when subjected to fire or heat

A

Noncombustible material

87
Q

The severity of a fire is a factor of the _________, plus the rate at which fuel burns

A

Fire load

88
Q

A greater heat relate rate results in

A

Faster developing fire

89
Q

Fire resistance describes several properties of a material including five components

A

Combustibility
Thermal conductivity
Chemical composition
Density
Dimensions

90
Q

_________ indicates the ability of a structural assembly to maintain its loadbearing capacity and structural integrity under fire conditions

A

Fire resistance

91
Q

_________ construction is not prone to structural failure under fire conditions

A

Fire resistive

92
Q

The most common method used to determine fire resistance

A

Laboratory testing

93
Q

The standard fire resistant rating test is _________ as NFPA 251, standard methods of tests of fire, endurance of building, construction and materials

A

ASTM E-119

94
Q

True/false another method for determining fire resistance includes the development of mathematical models based on data collected during non-standard testing

A

True

Building Construction (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions