23 Questions
Which factor is most significant when determining burn rate?
Combination of fuel and available oxygen
What can be measured and predicted in degrees when evaluating surface burning characteristics of a material?
Flame spread over a specific material
Which is a type of fire-retardant coating?
Intumescent coatings
What does the ASTM E-84 standard test measure?
Flame spread rating and smoke developed rating
Why are fire-retardant coatings not sufficient for increasing the fire resistance of structural members or assemblies?
They only protect the coated surface
What is the significance of a flame spread rating over 200 in occupancies?
It is not permitted
What does the smoke developed rating measure?
The relative visual obscurity in an area due to generated smoke
What are fire partitions used for?
Subdividing a floor or area of a building
What is the purpose of tying walls in a steel frame or concrete construction building?
Limiting the maximum spread of fire
In what types of facilities may fire walls not be necessary?
Factories, warehouses, retail stores
What is the range for parapet height above a combustible roof determined by code?
18-36 inches
What fire-resistive ratings are allowed for fire walls by the International Code Council?
2, 3, or 4 hours
What materials must be used for constructing 4-hour fire walls?
Masonry or concrete
What is the required enclosure rating for stairwells in buildings 4 stories or lower?
1-hour
What are the letter designations for fire door openings in vertical shafts and 2-hour partitions?
Class B
What type of doors close under the force of gravity when a fusible link melts or a smoke detector releases the hold-open device?
Rolling (overhead) doors
Where can glazing be used when a fire rating is required and visibility is desired?
In partitions and fire doors
What is the required enclosure rating for openings in exterior walls subject to moderate or light exposure from the outside?
Class E
What is the required enclosure rating for openings in fire walls greater than a 2-hour rating?
3 or 4 hour rated doors
What is the required enclosure rating for openings between rooms and corridors having resistance rating of less than 1 hour?
Class C
What is permitted regarding the surface temperature rise on the unexposed side of most fire doors?
It is not regulated for most doors
Under what condition may 1/3 hour rated doors not be subjected to a hose test?
Depending on intended use
What is permitted after 30 minutes during the flame test for fire doors?
Intermittent passage of flames
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