Chpt 2

Question 1

To the firefighter, however the most significant characteristic of a building is not the its architectural style but how it behaves under

Answer 1

Fire conditions

Question 2

_____ buildings permit firefighters to make a more aggressive interior attack than they can make in non fire resistive buildings

Answer 2

Fire resistive

Question 3

Also provide an increased degree of occupant safety

Answer 3

Fire resistive buildings

Question 4

Determines the likelihood of structural collapse under fire conditions

Answer 4

Fire resistance

Question 5

From a fire protection standpoint, one of the most basic properties of building materials is their degree of _____

Answer 5

Fire resistance

Question 6

Is the ability to maintain its load bearing capacity and structural integrity under fire conditions

Answer 6

Fire resistance

Question 7

is not prone to structural failure under fire conditions

Answer 7

Fire resistive construction

Question 8

The fire resistance of structural components can be evaluated quantitivley and is known as the

Answer 8

Fire resistance rating

Question 9

A building code will typically require that columns supporting the floors in a fire resistive building have a fire resistance rating of

Answer 9

3 hours

Question 10

The walls enclosing an exit stairwell, which may or may not be load bearing, typically must have a fire resistive rating of ____ hours to protect the stairwell

Answer 10

1 to 2 hours

Question 11

The most commonly used method of determining fire resistance is by

Answer 11

Laboratory test

Question 12

The _____ is widely used in fire protection to establish the required performance standards in building codes.

Answer 12

Standard fire resistance test

Question 13

The primary means used to determine a fire resistance rating is to subject the component to be evaluated to the heat of a

Answer 13

Standard fire in a test furnace

Question 14

It must be clearly understood that the fire resistance ratings are established using a standard

Answer 14

Laboratory test fire

Question 15

The ____ tests is the only method currently universally accepted by building codes

Answer 15

E-119 test

Question 16

To make the results of fire resistance testing available and useful to engineers, architects, and building officials, the test results are published by the testing laboratories. Probably the best known laboratories is

Answer 16

Underwriters laboratories inc

Question 17

Underwriters laboratories annually publishes a _____, which lists assemblies that have been tested and their fire resistance ratings

Answer 17

Fire resistance directory

Question 18

Because testing materials in a furnace is costly and because some structural members may not match those that have been previously tested,_______ have been developed to predict the behavior of materials under test conditions without the need for actual testing

Answer 18

Mathematical equations

Question 19

This standard known as ____ provides the methods for calculating fire resistance ratings that are equivalent to the results obtained from the standard fire test

Answer 19

ASCE/SFPE 29 standard calculations methods for structural fire protection

Question 20

The ____ is the most commonly used method of satisfying building code requirements for structural fire resistance

Answer 20

NFPA 251 standard time temperature test

Question 21

Fundamentally, a _____ material is one that in the form in which used and under conditions anticipated will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire and heat.

Answer 21

Non combustible

Question 22

The most commonly used test for determining combustibility is

Answer 22

ASTM E 136 standard test method for behavior of materials in a vertical tube furnace

Question 23

Buildings are grouped into five major classifications

Answer 23

Type 1 fire resistive 
Type 2 non combustible or protected non combustible 
Type 3 exterior protected masonry 
Type 4 heavy timber 
Type 5 wood frame

Question 24

In ____, the structural members are non combustible construction that has a specified fire resistance

Answer 24

Type 1 fire resistive

Question 25

Generally, bearing walls, columns, and beams are required to have a fire resistance of _____.

Answer 25

Two to four hours

Question 26

Floor construction is required to have a fire resistance of

Answer 26

Two or three hours

Question 27

Interior partitions enclosing stairwells and corridors are required to be fire resistive as specified by local code, usually

Answer 27

One or two hours

Question 28

Some building codes contain a provision to omit the fire resistive rating for a roof construction for some occupancies when the roof is located more than ____ above the floor

Answer 28

20 feet

Question 29

The two most common methods of constructing type 1 buildings are by using

Answer 29

Reinforced concrete or a protected steel frame

Question 30

In the case of a steel frame building, it must be remembered that unprotected steel has no

Answer 30

Fire resistance

Question 31

When steel is used in fire resistive designs it must be protected by an

Answer 31

Insulating material

Question 32

Type 2 construction can be either

Answer 32

Protected or non protected

Question 33

The use of unprotected steel is the most common characteristic of unprotected

Answer 33

Non combustible construction

Question 34

In type 2 construction, structural steel is frequently provided with a degree of fire resistance that is less that that required for

Answer 34

Type 1 construction

Question 35

An unprotected, noncombustible building cannot be expected to provide _____ under fire conditions

Answer 35

Structural stability

Question 36

Type 3 construction has been commonly referred to as

Answer 36

Ordinary construction

Question 37

Is frequently constructed with exterior walls of masonry, but from a technical standpoint any non combustible material with the required fire resistance can be used for the exterior walls

Answer 37

Type 3 construction

Question 38

A fundamental fire concern with ____ is the combustible concealed spaces that are breathed between floor and ceiling joists and between studs in partition walls when they are covered with interior finish materials

Answer 38

Type 3 construction

Question 39

Is commonly known as heavy timber or mill construction

Answer 39

Type 4

Question 40

Concealed spaces are not permitted between structural members in

Answer 40

Type 4

Question 41

The greater mass of the heavy timber components provides greater structural endurance fire conditions than the structural members used in type 3 buildings

Answer 41

Type 4 heavy timber

Question 42

In ____, also commonly known as wood frame construction, all major structural components are permitted to be of combustible construction

Answer 42

Type 5

Question 43

The basic method of construction in a _____ building consists of using a wood frame to provide the primary structural support

Answer 43

Type 5

Question 44

Many type 5 structures are required to have a _____ fire resistance for the structural members

Answer 44

1 hour

Question 45

A fundamental problem posed by type 5 construction is the creation of combustible concealed voids and channels more extensive than are found in

Answer 45

Type 3 construction

Question 46

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

Answer 46

Light frame construction

Question 47

In the situation of ____, however, emergency responders could be confronted with a fire in type 5 construction that exceeds the normal height restrictions for that type of construction.

Answer 47

Mixed construction

Question 48

The ____ is the product of the weight of the combustibles multiplied by their heat of combustion

Answer 48

Fire load

Question 49

Ordinary combustibles such as wood, paper, and similar materials have heats of combustion between _____.

Answer 49

7000 and 8000 btus per pound

Question 50

The _____ can be used as an estimate of the total potential heat release or thermal energy to which a building may be subjected if all combustibles become fully involved

Answer 50

Fire load

Question 51

Building codes classify buildings according to their _____ as well as their construction type

Answer 51

Occupancy