Chapter 12

Question 1

High Rise Building as being more

Answer 1

Then 75 feet in height

Question 2

4 Specific challenges of high rise buildings

Answer 2

Exterior access i not possible at heights beyond the reach of aerial equipment

Access to the staging and fire floors take more time

Incidents with more resources and personnel require more coordination

Larger building contain a greater number of occupants and activities increasing the probability of emergency response calls

Question 3

Ventilations via breaking out windows in a high rise is

Answer 3

A hazard to person below

Question 4

Typically Model building codes in high rise require for structural frame is

Answer 4

2 or 3 hour fire resistance

Question 5

Typical model building code in high rise require for floor construction is

Answer 5

2 hour fire resistance

Question 6

One unavoidable problem with stand pipe systems is

Answer 6

The Variation of pressure in tandem with building height

Question 7

In building 9 or 10 stories it might be possible to

Answer 7

Advanced hoselines up stairwells

Question 8

Voice Evacuation systems are often zoned by floor and are designed to evacuate only

Answer 8

the floor of origin, the floor above and the floor below

Question 9

High rise buildings typically include (4)

Answer 9

Duct detectors arranged to prevent recirculation of smoke to other floors

Smoke detectors in elevator machine rooms and elevator lobbies to initiate elevator recall

A circuit breaker linked to heat detection systems to disconnect electrical equipment

Corridor smoke detectors in residential occupancies

Question 10

Model Building codes require a room or area in high rise building for

Answer 10

to serve as a fire command center

Question 11

Shut Trip

Answer 11

A circuit breaker used as a safety device in a elevator system when electrical current surges the device disconnects the power source

Question 12

Phase 1 elevator operations

Answer 12

Recall of all passenger elevators with vertical travel greater than 25 feet

Question 13

Phase 1 operation can be trigged by (3)

Answer 13

Activation of automatic smoke detectors

Activations of automatic sprinkler waterflow alarms

Activation of manual keyed switch in the terminal floor lobby

Question 14

During Phase 1 operation the Emergency stop button in the car

Answer 14

is rendered inoperative so that care occupants who may be unaware of the fire or emergency cannot stop the car anywhere but at the terminal floor

Question 15

Phase 2 operation is

Answer 15

Designed to override the recall feature to permit firefighters to use the elevators after they arrive on the scene

Question 16

4 Building features that limit firefighter access include

Answer 16

Solid walls lacking door and window openings

Obstructions on exterior walls

Obstructions between the building and the access road

Features of construction including banked earth or difficult terrain

Question 17

4 Specific types of difficulties for firefighters in underground facilities are

Answer 17

Access for fire fighting

Rescue and evacuation of occupants

Ventilation of heat and smoke

Water supply and drainage of water from the flooding or fire fighting operations

Question 18

Greatest single challange in controlling fires in underground building are

Answer 18

The difficulty in venting heat and smoke

Question 19

Smokeproof enclosures are required for building with levels more than

Answer 19

30 Feet below the level of exit of discharge

Question 20

The Maximum available fire resistant protection in below grade buildings are

Answer 20

4 Hours

Question 21

To address the problem with ventilation of smoke and heat requires building to be equipped

Answer 21

with smoke exhaust system

Question 22

where buildings have floors levels more then 60 feet below the level of exit require

Answer 22

Separation of each level into two approximately equally sized compartments

Question 23

Most significant advantage to membrane structures is

Answer 23

the ability to provide a large unobstructed interior space

Question 24

4 Limitations for air inflated or air supported structures are

Answer 24

Limited to one story in height

Vulnerable to the forces of high winds newt structures have computer controlled fans to automatically adjust to changing atmospheric conditions

The membrane used may be limited combustible or non combustible material if the material is limited combustible it is required to have a low flame spread and low smoke propagation

Question 25

Building codes for shopping malls require

Answer 25

Mall walkways be 20 feet wide

Question 26

Shopping malls are constructed in various sizes but typically include

Answer 26

one to three levels

Question 27

Current codes do not permit covered malls to be constructed of

Answer 27

of wood construction

Question 28

Smoke Control system may be required in covered malls with

Answer 28

3 or more stories

Question 29

Atrium is

Answer 29

A large vertical opening extending through two or more floors of a building that is not used for building services such as enclosed stairs elevators or building utilities

Question 30

Typical model code requirements for atriums include

Answer 30

Automatic sprinkler Protections for those floors the atrium connects

Be enclosed with 1 hour fire rated constructions or combination of glass and automatic sprinkles

Question 31

Explosions in building occur 4 number of ways

Answer 31

A chemical reaction such as the rapid combustion resulting from the ignition of a mixture of air and a flammable vapor

Uncontrolled chemical reactions in processing plants or decompositions of unstable compounds

Ignition of air and dust from grain or milling sawing operations

Boiler explosions in which no chemical reaction occurs

Question 32

Explosion ventis is designed to

Answer 32

Quickly relieve the presure before it causes excessive damage

Question 33

Areas of refuge must must be designed with (2)

Answer 33

Accommodate or or two wheelchairs depending the occupant load

Two way communication system connected to a constantly attended location

Question 34

Areas of refuge fire rating must be

Answer 34

1-hour

Question 35

Rack storage in warehouses may have

Answer 35

Multiple rows of racks wider than 12 feet with aisles narrower than 3.5 feet

Question 36

5 Variables regarding the application and design of fire protections in rack storage are

Answer 36

Height and style of racks

Commodity being stored

Type of container or palletizing used for storage

Public access

Square footage of the storage area