Chapter 6

Question 1

Among the most important elements of life safety are proper means of ___ and protection against hazards.

Answer 1

Egress

Question 2

In 1890, the first fire test of a fireproof floor assembly in the U.S. was conducted for the Denver Equitable Building Company. ___ floors were tested. The floors were subject to a load, shock, fire, and water, and continuous fire tests of ____.

Answer 2

Hollow tile floors…. 24 hours @ 1,300°F

Question 3

In 1896, the NYC Department of Buildings conducted a series of tests on fireproof floors using brick kilns as the test furnace. The central panel of the floor was loaded to ____. A wood fire was maintained at ___ during the last four hours. After the fire, a hose stream was applied and the floor was reloaded to ___ for 48 hours, with the final load resting on the ____ rather than the beam.

Answer 3

150 psf
2,000°F
600 psf
arch

Question 4

Between 1896 and 1916, not much fire testing wa done on columns. However, the testing that was conducted showed ___ to be superior to unprotected steel.

Answer 4

Cast iron

Question 5

The three following standards for fire test of Building Construction and Materials.
1.
2.
3.

Answer 5

NFPA 251
UL 263
ASTM E-119

Question 6

Fire resistance of columns is concerned with resisting ___.

Answer 6

Collapse

Question 7

Fire resistance of floors is concerned with resistance ___.

Answer 7

Passage of fire and collapse

Question 8

Fire resistance of walls is concerned with ___.

Answer 8

Passage of fire and collapse

Question 9

Fire resistance of fire doors is concerned with ___.

Answer 9

Passage of fire

Question 10

The minimum sizes for fire resistance test specimens are as follows.
Columns \_\_\_
Beams and girders \_\_\_
Partitions and walls \_\_\_
Floor and roofs \_\_\_

Answer 10

9’
12’
100 sq. ft
180 sq. ft

Question 11

Fire Resistance Testing… The columns have several thermocouples peened into the columns. When the average temperature exceeds ___ or any thermocouple’s temp exceeds ___, the test is ended and the specimen fails.

Answer 11

1,000°F

1,300°F

Question 12

Fire Resistance Testing… A floor or wall structure must not develop conditions that would ignite ___ on the unexposed surface or permit an average temperature rise on the unexposed surface of ___.

Answer 12

Cotton waste

250°F

Question 13

The UL Fire Resistance Directory is published ___.

Answer 13

Anually

Question 14

The basis for regulation of flame spread today is found in NFPA ___, commonly referred to as the ___.

Answer 14

NFPA 255

Steiner Tunel Test

Question 15

Steiner Tunel Test is also known as ASTM ___ and UL ___.

Answer 15

ASTM E-84

UL 723

Question 16

Steiner tunnel test… A test sample ___ long and ___ wide forms the top of a tunnel or long box.

Answer 16

25’ long

2’ wide

Question 17

Steiner tunnel test… Flame spread over inorganic reinforced cement board is set at ___.

Answer 17

0

Question 18

Steiner tunnel test… Flame spread over red oak is set at ___.

Answer 18

100

Question 19

Flame spread of surface materials is classified as follows:
Class A: ___
Class B: ___
Class C: ___

Answer 19

0-25
26-75
76-200

Question 20

When the tunnel test is run at UL inc, smoke developed is also measured and indexed. Materials with smoke developed ratings of ___ or more can be expected to generate substantial amounts of smoke.

Answer 20

300 or more

Question 21

The ___, Radiant Panel Flame Spread Test. Samples for this test measure only ___ by ___ inches.

Answer 21

ASTM E-162

6” by 18”

Question 22

The corner test developed by FM Approvals uses walls up to ___ feet high, the East wall is ___ long, and the South wall is more than ___ long.

Answer 22

25’
50’
37’

Question 23

The Critical Radiant Flux Test, NFPA ___, measures a materials ability to resist flame spread.

Answer 23

NFPA 253

Question 24

The ___ the CRF number, the less flammable the carpeting.

Answer 24

Higher

Question 25

When regulated, the model building and fire codes consider two classes of interior floor finish ratings.
Class 1: CRF minimum ___
Class 2: CRF minimum ___

Answer 25

Greater than or equal to 0.45 watt/sq. cm

Greater than or equal to 0.22 watt/sq. cm

Question 26

2008 UL Inc report “Strutural Stability of Engineered Lumber in Fire Conditions”…. In a simulated basement fire involving exposed lightweight I-beams, collapse occurred in a mere ___ minutes.

Answer 26

6:03

Question 27

2008 UL Inc report “Strutural Stability of Engineered Lumber in Fire Conditions”…. The legacy 2x10 beam construction outlasted lightweight construction by a ___ margin.

Answer 27

3:1

Question 28

Fire walls, typically ___ hour fire resistance rated.

Answer 28

2-4

Question 29

Fire partitions, typically ___ hour fire resistance rated.

Answer 29

1

Question 30

Fire barriers, typically ___ hour fire resistance rated.

Answer 30

1-2

Question 31

Fire doors can have fire protection ratings from ___ to ___.

Answer 31

20 minutes to 3 hours

Question 32

Fire doors may close by any of three methods.
1.
2.
3.

Answer 32

Swinging
Sliding
Rolling

Question 33

Two types of fire door closure devices.
1.
2.

Answer 33

Self-closing

Automatic

Question 34

Multiple fire doors are AKA ___.

Answer 34

“leafs”

Question 35

___ - creating fire areas no larger than one floor.

Answer 35

Compartmentation

Question 36

Self closing fire doors may use fusible links rated at ___.

Answer 36

165°F

Question 37

With the exception of a deluge system, sprinkler systems are designed with only a certain number of sprinklers to be operating at one time, not the entire system. The design would anticipate anywhere from ___ sprinklers.

Answer 37

4-50

Question 38

It is estimated that there are over ___ incentives in the IBC for sprinkler use.

Answer 38

200

Question 39

Some cities require sprinkler for basements in excess of a certain size, usually ___.

Answer 39

2,500 sq ft.

Question 40

A single sprinkler flowed for 15 minutes would flow about ___ gallons.

Answer 40

500 gallons

Question 41

Sprinkler piping is hydrostatically tested after installation for ___ hour at ___ psi.

Answer 41

2 hours at 200 psi

Question 42

The NFPA has no record of a multiple death fire(___ or more people) in a completely sprinklered building where the system was operating properly.

Answer 42

3 or more

Question 43

As much as ___ % of recent library fires were due to arson.

Answer 43

85%

Question 44

Sprinklers should not be shut down as long as ___ is falling down.

Answer 44

“Hot water”

Question 45

Outside building inspections: sprinkler…

When a pump is installed, a manifold for testing the fire pump is usually provided. Each ___ inch outlet indicates ___ ppm.

Answer 45

2 1/2”

250 gpm

Question 46

ESFR sprinklers discharge a larger quantity of water, as much as ___ gpm per sprinkler in some cases.

Answer 46

100 gpm

Question 47

The orifice size of an ESFR sprinkler is ___ in size; conventional sprinklers have ___ openings.

Answer 47

3/4”

1/2”

Question 48

ESFR sprinklers can protect rack storage of high density plastics up to ___ in height without the use of in rack sprinklers.

Answer 48

25’

Question 49

Typically, a single riser can cover an area up to ___ for most occupancies with a limitation of ___ for high-pooled stock warehouses and extra hazard occupancies.

Answer 49

52,000 sq ft.

40,000 sq ft.

Question 50

Class 1 and 3 standpipe systems provide ___ ppm at ___ psi at each hose valve.

Answer 50

250 gpm

100 psi

Question 51

Class 2 standpipe systems provide ___ gpm at ___ psi.

Answer 51

100 gpm

65 psi

Question 52

A realistic estimate between alarm time and start of extinguishment in a high-rise building is ___ .

Answer 52

20 minutes

Question 53

The piping of some sprinkler systems in high-rise buildings may be limited in terms of its working pressure, providing only as little as ___ psi.

Answer 53

200 psi

Question 54

A standard hydraulic formula adds ___ psi for the standpipe itself and ___ psi per floor.

Answer 54

25 psi

5 psi

Question 55

If the female swivel is rusted and won’t turn, twist the 2 1/2” supply hose ___ turns counterclockwise before connecting.

Answer 55

4-5