PDX_34_Fire 3

Question 0

Required for each 200 occupants and must be 30” x 48” in an area protected from smoke and fire

Answer 0

Area of refuge

Question 1

At least one accessible means of egress is required, which involves and:

Answer 1

Elevator, stare, ramps and areas of refuge

Question 2

consisting of a fire door, fire damper, or fire window and it’s mounting hardware. The entire thing must be approved and labeled by a testing agency

Answer 2

Fire assembly

Question 3

Fire hazards of buildings can be classified into three groups per NFPA 13:

Answer 3

Light hazard
Ordinary hazard
Extra hazard

Question 4

Fire hazard groups per NFPA 13:

Residences, offices, hospitals, schools, restaurants

Answer 4

Light Hazard

Question 5

Fire hazard groups per NFPA 13:

Automobile garages, laundry is, large library stack rooms, printing/publishing plants, paper processing plants

Answer 5

Ordinary hazard

Question 6

Fire hazard groups per NFPA 13:

Areas that handle combustible materials

Answer 6

Extra hazard

Question 7

In order of importance, it is most important to fire protect these structural elements:

Answer 7

Columns,
Girders,
Beams
Floor slab

Question 8

Fire protection codes traditionally have three goals:

Answer 8

– Protection/escape
– Structural integrity
– Restored afterwards

Question 9

Fire protection is accomplished by:

Answer 9

Preventing
Detecting
Exiting
Containing
Suppressing

Question 10

Achieved through building materials, compartmentation and smoke control

Answer 10

Fire Containment

Question 11

Is achieved through the sprinkler systems, standpipes, and other methods:

Answer 11

Fire suppression:

Question 12

Pipes that run the height of the building and provide water each floor for firefighting hose connection

Answer 12

Standpipes

Question 13

The part of the fire sprinkler system that does charges water when the effects of fire have been detected

Answer 13

Fire sprinkler

Question 14

When materials become extremely hot and combust suddenly after reaching their temperature limit

Answer 14

Flashover

Question 15

Automatic drain valve at the bottom of dry standpipe

Answer 15

Ball drip

Question 16

Primary means of fire elimination as it stops the heat and light energy, and chemical reactions of fire.
It’s cheap, but it damages building and conducts electricity.

Answer 16

Water

Question 17

Sprinkler systems:

– Used in high fire hazard areas to flood area in case of a fire.
– Heads are always open and waters controlled by a sensor.
– Sprinklers are activated all it wants regardless of the location of the fire.

Answer 17

Deluge systems

Question 18

Sprinkler systems:

– Most common system.
– Continually pressurized with water. 
– Have low initial cost.
– Have quick response time, will work when a sprinkler head reaches 135°F – 170°F.
– Susceptible to damage from freezing.

Answer 18

Wet standpipe system

Question 19

Sprinkler systems:

– Used in areas subject to freezing because no water sits in the pipes.
– Hold valves closed with compressed air. It requires constant pressure else the system will leak.
– Slower to deliver water if pipe runs are long.

Answer 19

Dry standpipe system

Question 20

Sprinkler systems:

– Reduce likelihood of a false start by requiring both a sprinkler head and fire detection system to be activated.
– Water is allowed into the system before a sprinkler head is opened

Answer 20

Pre-action systems

Question 21

Sprinkler systems:

Provided outside for fire department hose connection

Answer 21

Siamese connections

Question 22

Typically located in stairways or vestibules

Answer 22

Standpipes

Question 23

– 2.5 inch outlets
– Located every level
– Used when portion interior >200’ from nearest point of fire department access.
– and buildings with more than three stories, and shopping malls
– If >75’ + grade, pipe connection provided every required stairway as well.
– Ball drip used
– Won’t freeze or rust.

Answer 23

Class I dry standpipe)

Used by fire department only.

Question 24

– 1.5 inch outlets and hoses for occupant use
– Required and buildings four or more stories tall, theaters, assembly spaces, B, H, I, M, and S occupancies
– Everywhere in bldg must be within 30’ of the ends of a 100’ hose attached to an outlet
– Must be designed to supply at least 35 gal/m @ 25 psi for 30 min
– Water system must be designed to provide 70 gal/m @ 25 psi for 30 min

Answer 24

Class II (wet standpipe)

Used by occupants before the fire department arrives

Question 25

– Water supply with both 1.5” and 2.5” outlets
– Installed in buildings w/ highest/lowest floor level is more than 30’ from level of fire dept. access
– Every point must be w/in 30’ of end of 100’ hose attached to outlet
– Exception is to use a class one standpipe area

Answer 25

Class III (combination standpipe)

Question 26

– Building is equipped with the sprinkler system
– Open parking garage is less than 150 feet tall
– Open parking garages subject to freezing temperatures
– Basement that are sprinklered

Answer 26

Exception to use a class one standpipe area:
From a class III combination system