BC 5

Question 1

interior finishes
interior linings

Answer 1

plaster
gypsum wallboard
wood panelling
ceiling tiles
plastic
fiberboard
wall covering including vegetation draperies and decorations

Question 2

interior finishes are considered trim

Answer 2

they do not exceed ten percent of the wall or ceiling
distributed throughout the space
do not constitute a large continuous surface

Question 3

surface burning characteristics

Answer 3

composition, orientation and thickness of material
ventilation
shape and size of compartment
finish material

Question 4

thin surface treatments

Answer 4

buildings codes usually exclude reference to surface treatments such as paint and wallpaper that are no thicker than 1/28 inch

Question 5

types of fire retardant coatings for interior finishes

Answer 5

intumescent coatings
mastics
gas firing paints
cementation and mineral fiber coatings

Question 6

intumescent paint

Answer 6

expands upon exposure to heat and creates a thick puffy coating that insulates the wood surface from heat and excludes oxygen

Question 7

mastic coating

Answer 7

form a thick noncombustible coating over the surface of wood

Question 8

ASTME 84

Answer 8

uses the Steiner tunnel test
standard test to measure the surface burning characteristics of interior finish materials

ASTME 84 UL 723 test for surface burning characteristics of building materials
the Steiner tunnel test
the tunnel test

Question 9

flame spread rating

Answer 9

established by ASTME 84 compares the surface flammability

Question 10

smoke developed ratings

Answer 10

red oak is standard at 100
max score of 450
does not detect or measure CO or heat irritation or toxicity or volitility
onlu visual obscuration

Question 11

NFPA 286

Answer 11

standard methods of fire tests for evaluating contribution of wall and ceiling interior finish to room fire growth

tests things that may not stay in place like things that will drip

tested on ceiling and walls

Question 12

NFPA 265

Answer 12

STandard methods for fire test for evaluating room fire growth contribution of textile or expanded vinyl wall coverings on full height panels and walls

tested on walls
carpet walls

Question 13

any kind of rated assembly used as a fire wall must match the listed parameters of the assembly in order to be compliant

Question 14

parapet walls

Answer 14

prevent fire spread on roofs. could be between 18-36 inches

Question 15

fire walls

Answer 15

four hour fire walls must be constructed of masonry or concrete
walls can be 2,3,4 hours
in structures as close as 18 inches apart rated construction may take the place of the clearance space to prevent fire spread

Question 16

fire partitions

Answer 16

do not extend full length
interior
encoring an exit corridor need 1 hour rating

Question 17

enclosure walls

Answer 17

prevents fire spread vertically through stairwells, stairwell exit passage ways
elevators and pipe chases
need 1-2 hour rating
less thean 4 stories stairs need 1 hour

Question 18

curtain walls

Answer 18

came with steel frame construction. separates interior from exterior
resist environmental loads
control heat loss
limit noise transmission
limit solar radiation

often non load bearing
some have no fire resistance such as those made of aluminum and glass

Question 19

fire doors

Answer 19

rated in increments of 20 minutes to 4 hours
1/2and 1/3 hour doors are rated for smoke barriers and into corridors
rated in hours and letters:
Class A- openings in fire walls
Class B- Openings in vertical shafts and openings in 2 hour rated partitions
Class C- Openings between rooms and corridors having a fire resistive rating of 1 hour or less
Class D- Openings in exterior walls subject to severe fire exposure from outside of the building
Class E- openings in exterior walls subject to moderate or light exposure from the outside

Question 20

fire doors

Answer 20

codes require 3-4 hour rating in doors in a wall with a 2 hour rating
doors rated 1.5 hours required for 2 hour vertical enclosures
1 hour doors for 1 hour vertical shafts and exit enclosures

Question 21

rolling overhead doors

Answer 21

along corridors to protect convenience openings
protect an opening in a fire wall in industrial occupancy
one or both sides of a wall opening
opening in a wall that separates buildings

made of interlocking steel slats, releasing device, speed governor, counterbalance mechanism, wall guides

closes when fusible link melts or smoke detector releases hold open device

Question 22

horizontal sliding doors

Answer 22

used in older industrial buildings

Question 23

swinging fire doors

Answer 23

protect stairwells
ratings from 20 minutes to 3 hours

Question 24

special fire doors

Answer 24

horizontally sliding accordion doors or folding doors
motor driven and require electricity

Question 25

glazed doors

Answer 25

ratings up to 3 hours can have glazing, NFPA 80 requires that it is visible after installation