12. Special Structures And Design Features

Question 1

Model building codes define a high-rise building as being more than __ ft

Answer 1

75 ft

Question 2

The fire protection definition is more practical: any building with occupied stories beyond the effective reach of fire equipment located at the street level

Answer 2

High rise building

Question 3

The two developments that made high-rise buildings possible and practical at the end of the 19th century were:

Answer 3

Steel frame construction

Elevators

Question 4

Valve installed at standpipe connection that is designed to reduce the amount of water pressure at discharge to a specific pressure.

Answer 4

Pressure reducing valve

Usually 100 psi

Question 5

___ Detectors in individual residential units are not monitored through the fire alarm system

Answer 5

Smoke

Question 6

All model building codes require smoke proof exit enclosures in all stairs serving floors ___ feet or higher

Answer 6

75 ft

Question 7

In a ___ ___Configuration, building services such as elevator stairwells and service shafts are grouped in the center of the floor

Answer 7

Central core

Many high-rise buildings especially office buildings and hotels are design with the central core floor plan

Question 8

___ ___ Are a critical resource that firefighters used to reach upper floors in a high-rise building

Answer 8

Modern elevators

Question 9

The elevator code requires a ___ ___ Where the elevator hoistway or elevator room is protected by automatic sprinklers

Answer 9

Shunt trip

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

Question 10

Recall of all passenger elevators with vertical travel greater than ___ feet in the event of a fire.

Answer 10

25 ft

Phase 1 operation

Question 11

___ operation is designed to override the recall feature to permit firefighters to use the elevators after they arrive on the scene

Answer 11

Phase 2

Question 12

The elevator doors do not open automatically and the operator must push the ___ ___ button in the car

Answer 12

Door open

Question 13

The___ ___ ___, which prevents the door from closing if there is a person or smoke in the doorway, is disabled during phase 2 operations To allow the doors to be closed in the car moved if it inadvertently stops in a smoke filled floor

Answer 13

Electric eye safety

Question 14

Smoke proof enclosures are now required for buildings with levels more than ___ feet below the level exit discharge

Answer 14

30 ft

Question 15

Building codes require that mall walkways be a minimum of __ ft wide

Answer 15

20 ft

Question 16

Codes require individual stores with the shopping mall to have a ___ hour fire resistive separation from each other, but they do not require that individual storefronts are separated from the mall itself

Answer 16

1 hr

Question 17

The code definition of an ___ refers to a covered vertical opening

Answer 17

Atrium

Question 18

This sudden release of energy produces outward pressures, often referred to as ___ ___

Answer 18

Blast waves

Question 19

Structural damage from an explosion can be mitigated through ___ or ___ the forces

Answer 19

Containment

Venting

Question 20

The maximum pressure reached during in an explosion may exceed __ times the atmosphere pressure

Answer 20

10x

Question 21

Areas of refuge must

Answer 21

Two way communication
Accommodate disability
Well ID from the exterior

Question 22

Newer ceiling mounted sprinkler technology include sprinklers that can operate in __ mode and __ mode

Answer 22

Control

Suppression

Question 23

Where building to floor level is more than ___ feet below the level of extra discharge separation of each level into two approximately equal size compartments

Answer 23

60ft