Fire Inspection/ Code Enforcement 7th edition Flashcards
Memorize!
4 groups that make up the IFSTA Validation Conference
- Key fire Dept executives & training officers
- Educators from colleges and universities
- Reps from gov’t agencies
- Delegates of FF associations and industrial organizations
Why the Fire Inspection & Code Enforcement manual was written
To assist fire and emergency personnel in meeting the Fire Inspector job performance requirements
Year firefighting in North America was established
1600’s
Number killed in the Station Night Club fire
100
NFPA 1031
Standard for professional qualifications for fire inspector and plan examiner
Level of fire inspector that must be able to determine the occupant load for a multi use building
Level II
Fire marshal typically holds the equivalent rank of …
assistant or deputy chief
The building dept is generally responsible for the following activities: (4)
- Reviewing and approving all new construction and alterations to existing
- Conducting plans reviews
- Issuing permits
- Making field inspections
Two common roles for private-sector inspectors
- An inspector whom a co. employs
2. An inspector an insurance or underwriting co. employs
NFPA 1031 separates the duties of an inspector into three levels
Level I
Level II
Level III
Categories of Inspections (7)
- Annual
- Issuance of a permit
- Response to a complaint
- Eminent hazard
- New construction
- Change in occupancy
- Owner occupant request
Court order prohibiting a person or business from continuing a particular course of conduct
Cease-and-Desist order
Procedures when performing an inspection (11)
- Be easily identifiable
- State the reason for the inspection
- Invite the building owner to accompany the inspector
- Other local authorities may participate in an inspection
- Follow a written inspection procedure
- Seek an administrative warrant if denied entry
- Issue a stop-work or cease-and-desist order for extremely hazardous conditions
- Have guidelines for issuing a stop-work order
- All licenses and permits allow periodic inspections throughout the duration of the license or permit
- Must be trained in applicable laws, codes, standards & ordinances
- Maintain a reliable record keeping system of inspections
Codes military bases follow
Unified Facility Criteria (UFC), portions of the International Fire Code (IFC) & NFPA
Local jurisdictions may adopt state/provincial laws by way of two methods
by Reference or by Enabling act
Most important laws to the inspector is …
the Enabling legislation that establishes the municipal fire dept
Inspectors may be authorized to … (5)
- Arrest or detain individuals
- Issue a summons
- Issue a citation
- File complaints for code violations
- Issue warrants
Inspectors are not held liable for…
Discretionary Acts
To indemnify the inspector means…
the AHJ assumes responsibility for any claims against the individual
Inspectors who take on a special duty or obligation to a person …
can be held liable
Property owners have the right under the ___ and the ___ Amendments to the US constitution to refuse admittance to an inspector unless proper legal instrument or warrant to enter the premises has been obtained
Fourth and Fourteenth Amendments
Form that eliminates questions regarding the original authorization to enter and perform an inspection
Consent-to-enter form
Codes regulate (4)
- Construction Materials
- Designs
- Occupant behavior
- Processes
A set of principals, protocols or procedures that is developed by a committee through a consensus process
A Standard
A collection or compilation of rules and regulations enacted by a legislative body to become law in a particular jurisdiction
A Code
Building and fire codes or standards may be classified in two ways
- Prescriptive
- Performance based
Addresses one broad topic
Code
Based on requirements described in standards
Code
May be amended
Code
Have the force of law when adopted
Code
Addresses one specific topic
Standard
Establishes design, behavior, and installation criteria
Standard
Become law only when adopted
Standard
Developed through a consensus process
Standard
Underwriters Laboratories Inc. founded in…
1894
Two model code orgs. and one in Canada
- Canadian Commission on Building and Fire Codes (CCBFC)
- International Code Council (ICC)
- National Fire Protection Association (NFPA)
Typical lifecycle of a model code edition
3 to 5 years
Primary goal of all municipal agencies
Public Safety
Process for developing or amending local codes (5)
- Identify the problem
- Identify affected stakeholders
- Forming a code development task force
- Drafting the proposed code
- Submitting the code for legal review prior to adoption
First step in any code or amendment development process
Identifying the problem
Stakeholders in the model code adoption process (5)
- Insurance agency
- Elected officials
- Building industry
- Chamber of commerce
- Citizen groups
Most effective way to adopt a code change or amendment
Explain the benefits the new code will bring
Days until new codes become effective and are enforced
90 days, can be reduced to 30 day in an emergency
Code adoption and amendment process (7)
- Set up the code adoption committee
- Public comments
- Committee deliberates on new code and public comments
- Committee provides written document with recommendations
- Code official develops official document
- Council provides documents to and hear testimony from the public
- Council adopts new rules with modifications
How many members on a Board of Appeals?
3 to 7 members
Time limit for submitting an appeal
7 to 30 days from the time of the inspection
Primary goal of all fire-prevention code activities
Compliance
Due process clauses are in what two US Constitution Amendments?
Fifth and Fourteenth Amendments
Actions that can be taken to ensure code compliance (in order (4))
- Notification
- Follow-up inspection
- Sanction
- Prosecution
Suggestions regarding courtroom procedure and behavior
- Provide evidence
- Review all files and notes
- Resist attempts to modify testimony
- Appear in proper uniform
- Confine testimony to the facts
- Remain impartial
- Limit information provided to only that which is necessary
- Make responses as brief as possible
- If unable to answer then say so
- Ensure that all physical evidence has been reviewed by the prosecutor
- Answer all questions factually and truthfully
- Anticipate personal attacks
- Never become argumentative
Two types of permits
Operational and Construction
Permits that relate to fire and life safety (5)
- Maintenance, storage, or use of hazardous products
- Hazardous operations
- Installation of equipment
- Open burning
- Large-area tents
Permit process (4)
- Application
- Review
- Issuance
- Expiration
Primary duty of a fire inspector
To ensure the life safety of both citizens and fire/emergency responders
A fuels potential energy is released in combustion and converted to …
Kinetic energy
Fire tetrahedron (4)
- Fuel
- Heat
- Oxygen
- Self-sustained chemical reaction
Type of fuel tag does not contain carbon
Inorganic fuel
Type of fuel that does contain carbon
Organic fuel
Characteristics of liquid fuels that contribute to their ability to ignite and burn (6)
- Vaporization (atmospheric pressure = 14.7psi)
- Vapor pressure
- Flash point (non-sustained combustion)
- Flammable/Combustable liquid
- 100F = combustable
- Surface area
- Solubility
Materials can burn in oxygen levels as low as …
14%
Energy exists in two states:
Potential and Kinetic
Temperature is a measurement of …
Kinetic energy
Flammable range of CO
12% - 75%
Flammable range of Methane
5 -15%
Flammable range of Propane
2.1 - 9.5%
Flammable range of Gasoline
1.4-7.4%
Two forms of ignition
- Piloted
- Autoignition
Temperature conversion formula C to F
F = (Cx1.8) + 32
Temperature conversion formula F to C
C = (F - 32)/1.8
Heat energy usually comes from…(5)
- Chemical
- Mechanical
- Electrical
- Nuclear
- Light
Most common sources of energy that result in the ignition of fuel (3)
- Chemical
- Electrical
- Mechanical
Most common source of heat in combustion reactions
Chemical heat reaction
When a material increases in temperature without the addition of external heat
Self-heating or spontaneous heating
For spontaneous ignition to occur the following conditions must be met (3)
- Heat cannot dissipate as fast as its being generated
- Heat production must be great enough to raise the temp of material to its ignition point
- Air supply around materials must be adequate to support combustion
Electrical heat can occur in several ways (4)
- Resistance heating
- Overcurrent or overload
- Arcing
- Sparking
Rate at which most materials chemical reactions occur doubles with each ___ F increase in temperature of the reacting materials
18F
As temperature of the heat source increases, the radiant energy increases by a factor to the ____ power. Doubling the temperature increases radiant heat by a factor of ____.
- Fourth power
- Sixteen
Materials that absorb heat but do not participate actively in the combustion reaction.
Passive agent
Thermal conductivity (greatest to least) (4)
- Copper
- Steel
- Concrete
- Wood
Fourth method for heat transfer
Direct flame contact (combination of conduction and radiation)
Complete combustion of Methane results in (4)
- Heat
- Light
- Water vapor
- Carbon dioxide
Three of the more common products of combustion
- Carbon Monoxide (CO)
- Hydrogen Cyanide (HCN)
- Carbon Dioxide (CO2)
Classes of fires (5)
- A
- B
- C
- D
- K
Stages of fire development (4)
- Incipient
- Growth
- Fully developed
- Decay
Factors influencing development of a fuel-controlled fire (6)
- Mass and surface area
- Chemical content
- Fuel moisture
- Orientation
- Continuity
During the growth stage of a compartment fire the fire exhibits a variety of traits (4)
- Thermal layering
- Isolated flames
- Rollover
- Flashover
The interface of hot and cool-gas layers at the opening is commonly referred to as …
Neutral plane
Flashover temperature range
Appx. 900 - 1200F
Two interrelated factors determine weather a fire in a compartment will progress to flashover
- Fuel must have sufficient heat energy
- Fire must have sufficient oxygen
Fire is termed this when at the fully developed stage
Ventilation controlled
Factors influence fire development within a compartment (7)
- Fuel type
- Availability of fuels
- Compartment volume and ceiling height
- Ventilation
- Thermal properties of the compartment
- Ambient conditions
- Effects of changing conditions
Most fundamental fuel characters influencing fire development are … (2)
- Mass
- Surface area
6 factors influence the availability and location of additional fuels
- Building configuration
- Contents of the building
- Construction of the building
- Construction/interior finish materials
- Fuel proximity and continuity
- Fire location
Firefighters influence fire behavior by doing one or more of the following actions (5)
- Reducing temps
- Eliminating fuel
- Separating the fire from available fuel
- Changing the oxygen concentrations
- Interrupting the self sustained chemical reaction
Most effective method available for the extinguishment of a smoldering fire
The use of water
Water expands …
1700 times
Composed of only noncombustible or limited combustible materials and provides the highest level of safety
Type I
Composed of building materials that will not contribute to fire development or spread
Type II
Exterior walls constructed of noncombustible materials and interior elements constructed of any material permitted by the code
Type III
Heavy timber construction
- Type IV
- Large dimension lumber greater then 4” for all structural elements
- Materials not made of wood must have a fire-resistance rating of at least 1 hour
Wood frame construction
Type V
National Building Code of Canada has three types of building construction
- Combustible construction
- Noncombustible construction
- Heavy timber construction
Occupancy classifications (12)
- Assembly
- Business
- Educational
- Day Care
- Factory/Industrial
- Institutional
- Mercantile
- Residential
- Residential Board and care
- Storage
- Utility/Misc
- Multiple
Assembly Class A
Occupant loads over 1000
Assembly Class B
Occupant loads of 301 to 1000
Assembly Class C
Occupant loads of 50 to 300
Educational Occupancies
- Used for purposes of educating 6 or more persons from preschool to 12th grade
- Meets for more than 4 hrs a day or more than 12 hrs in a week
- One person for every 20 sq/ft
NFPA classifies manufacturing and processing facilities as industrial occupancies with three subdivisions
- General purpose
- Special purpose
- High hazard
Evacuation capabilities of a residential board and care occupancy are properly classified as … (3)
- Slow
- Prompt
- Impractical
Residential occupancies are subdivided into 5 categories
- One and two family dwelling
- Lodging or rooming house
- Hotel
- Dormitory
- Apartment
ICC subdivides Mixed Use (3)
- Accessory (limited to 10% of the area, <750sqft not included)
- Non-separate (w/ two or more uses)
- Separate
Three or more independently attached dwellings w/ cooking and bathroom
Apartment building
Sleeping accommodations are provided to 16 or more persons who are not related and w/o cooking facilities
Dormitory
Any building or group of building that provides sleeping rooms for transients
Hotel
24 hour accommodations for 16 or fewer individuals w/o cooking
Lodging
Compressive strength parallel to the wood grain
325 to 1,850 psi
Moisture content od structural lumber
19% or less
Wood products for construction use take the following specific foms
- Solid lumber
- Laminated members
- Panels
- Manufactured members
Nominal thickness of boards
2” or less
Nominal thickness of dimension lumber
- 2” - 4”
- 8’ - 16’ in 2’ increments
- 24’ rafters
Nominal thickness of timbers
5” or more
Depths and lengths of Glulam beams
- 3” - 75”
- 100’ length
Panel span rating of 32/16
Rafters 32” apart, joists 16” apart
Two main methods of fire retardant treatment of wood
- Pressure impregnation
- Surface coating
Types of concrete (6)
- Ordinary stone
- Structural lightweight
- Insulating lightweight
- Gypsum
- High early strength
- Expansive
Superplasticizer
An admixture used with concrete to produce a mixture that flows more freely
Percent of carbon content in steel and cast iron (2)
- Steel = 0.3%
- Cast iron = 3-4%
Steel column encased in 3’ of concrete with a siliceous aggregate would have a fire resistance rating of …
4 hours
Intumescent coatings that expand when exposed to heat have fire resistance rating up to …
3 hours
Melting point of aluminum
1,220F
Types of glass (5)
- Ordinary, single strengthen annealed
- Heat strengthened (surface compression 3,500-10,000psi)
- Fully tempered (surface compression >10,000psi)
- Laminated
- Glass block
Types of glass that are suitable where fire resistance is required (2)
- Wired glass (.24” thick, max 1,296sq”, 45min rating, doors w/ 90min rating require max size of 100sq”
- Fire rated glass (45 min and 90 min available)
Fire resistance ratings of gypsum board
1 - 4 hr
Types of gypsum board (7)
- Regular
- Water resistant
- Type X
- Type C
- Foil backed
- Gypsum backed
- Coreboard
Plastics with low flammability are subject to deterioration and may evolve toxic gases at temps above …
500F
Common cast-in-place concrete systems (3)
- Flat slab
- Slab and beam
- Waffle construction
Beam and girder frames can be classified as … (3)
- Rigid
- Semirigid
- Simple
Two commonly encountered applications of the basic steel truss
- Open web joist (depths up to 6’, span up to 144’)
- Joist girder
Steel rigid frames usually are used for spans from __to __.
40’ - 200’
Steel arches can be constructed to span distances in excess of …
300’
Bridge cables have strengths as high as …
300,000 psi
Most common column cross sections (3)
- Hollow cylinder
- Rectangular tube
- Wide flange
Non-rieinforced masonry walls limited to a maximum height of around ..
6 stories
Reinforced masonry buildings with load bearing walls built to a height of …
20 stories with 10” thick walls
Walls constructed with fire rated concrete masonry units or bricks can have fire-resistance ratings of…
2 - 4hrs
Two basic types of wood framing
- Timber framing (Type IV)
- Light wood (Type V)
Heavy timber minimum column and beam dimensions
- Column = 8”x8”
- Beams = 6”x10”
Post and Beam construction typical post dimensions (2)
- 4”x4”, 6”x6”
- Posts spaced 4’ - 12’
Two basic types of light wood framing
- Balloon
- Platform (western framing)
Exterior walls of a wood frame building include the following (3)
- Sheathing
- Siding material
- Insulation
Types of walls (6)
- Fire walls
- Party walls
- Fire partitions
- Enclosure and shaft walls
- Curtain Walls
- Movable partitions
Resistance rating of a Fire wall
2 or more hours
Highest rating is 4 hours
Fire wall with a 4 hr rating will have a fire door rated at ___ on each side of the wall
3 hrs
Resistance rating of of a Fire partition is typically rated at …
1 Hr
Fire barriers can have a fire resistance rating of ___ to ___
1 to 4 hrs
1/2’’ gypsum applied to each side of a 2’‘x4’’ stud the partition would have a fire rating of …
1 hr
Enclosure walls have a fire resistance aging of___ or___
1 or 2 hours
Movable partitions are usually not fire resistive although fire resistive movable partitions are available with rating of___or___
1 or 2 hrs
Primary function of a roof
Protection from weather
Building roofs can be broadly classified into three categories
Flat, pitched, curved
Truss span lengths run from___to over___feet
10 to 60 feet
Asphault shingles are fundamentally combustable, they tend to drip and run under fire conditions and produce…
A heavy black smoke
Three methods of steel structural support systems
- Open web joists (bar joists) or trusses
- Steel beams
- Light gauge steel joists
Minimum dimensions of floor decking and their supporting beams in Type IV
- 3’’ thick plank with a 1’’ finished flooring
- 6’‘x10’’ beam
Two classes of finished floors
- Class I (can withstand higher temps)
- Class II
Minimum stairway rise and run dimensions
4’’ to 7’’ rise and 11’’ run
Each successive step cannot differ in size more than …
3/8’’
Types of stairways typically considered when assessing stairways as a means of egress (5)
- Protected Stairs (1 or 2 hr rating)
- Exterior stairs
- Fire escape
- Smokeproof stair enclosure (active/passive smoke control)
- Unprotected stairs (connect only 2 adjacent floors, “access” or “convenience stairs”)
Five types of doors
- Swinging
- Sliding (not allowed as a part of egress)
- Folding
- Vertical
- Revolving (swinging door within 10’, collapse wings 130 lbs.)
Three methods of classifying fire doors
- Hourly fire-protection rating (4, 3, 1 1/2, 1, 3/4, and 1/3 hour)
- Alphabetical letter designation (no longer used) (A - E)
- Combination of hour and letter
Primary test criterion for acceptability of fire doors
If the door remains in place
Smooth galvanized sheet metal is used on wood-core door is known as …
Kalamein Door
Fire doors with rating of 3, 1 1/2, and 3 hours can have glass panels up to …
100 sq inches
Fire doors with a rating of 3/4 hours can have a total area of glass consistent with its rating but no piece of glass can exceed …
1,296 sq inches
Devices that operate fire doors are listed as … (3)
- Fire door closers
- Electromagnetic door holders
- Door operating devices
Oldest and simplest detection device
Fusible link
Types of windows (8)
- Double hung (2 sashes, can move past each other)
- Single hung (lower sash)
- Casement (swing out)
- Horizontal sliding
- Awning (top hinged/outward-swinging)
- Jalousie (4’’ wide glass louvers)
- Projecting (slides up/down in grooves)
- Pivoting (pivots horz/vert)
Doors, door/window frames, chair railings, wainscotings, paint thicker then 1/28’’
defined as interior finishes
Hanging fabric materials, drapes, curtains, paint no thicker then 1/28’’
Are not treated as interior finishes
Flame and smoke spread rating of Red Oak
100 during a 10 min test
Maximum flame spread rating allowed
200
Types of fire-retardant coatings (4)
- Intumescent
- Mastics
- Gas-forming paints
- Cementitous and mineral-fiber coatings
Elevator hoistways and doors are required to be fire-rated assemblies with ___or___ hour rating
1 or 2 hour
Common types of hoistways (3)
- Single
- Multiple (limited to no more then 4)
- Blind (doors are provided for rescue every 3 floors)
HVAC systems over a certain capacity, usually 2,000 sq3 feet/min be provided with …
Internal dust smoke detectors
Most common cooling method for transformers (2)
- Air-cooled transformers
- Oil-cooled or oil-filled transformers
Lead-acid batteries contain (2)
- Sulfuric acid
- Metallic lead
Three basic elements of of an egress system
- Exit access
- Exit
- Exit discharge
A public way must have a minimum width and height of …
10 ft
Horizontal exits may be substituted for other exits if they do not compose more then ___% of the total exit capacity of the building
50%
Two of the most important life safety functions of doors
- Act as a barrier to the movement of smoke and fire
2. Serve as a component of a means of egress
Doors serving as a means of egress must be at least ___ in. wide and no more then ___ in. wide
36” and 48”
Force required to cause the latch to operate on panic hardware and fore required to set the door in motion (2)
- 15 lbs
- 30 lbs
Required width of stairs in multistoried buildings
44’’; 36’’ if occupant load is less then 50
Landings must be provided so that no flights of stairs are greater then___ft.
12 ft
The stairway door must have a 1 hour rating when used in a ___ hr rater enclosure and a 1 1/2 hour rated door when used in a ___ hr rated enclosure.
- 1 hour
- 2 hour
Ramps must be at least 44” wide with a max slope of ___ and a max distance between landings of ___ft
- 1 to 12
- 30 ft
Fire escape slides must have a rated capacity of ___
60 persons
Emergency lighting must be ___ foot-candle for ___ min.
- 1 foot
- 90 minutes
Letter on exit signs must be at least ____ in. high with individual letter strokes ____ in. wide
- 6 inches high
- 3/4 inches wide
Responsible for calculating the occupancy load
Inspectors
Formula for determining Occupant Load
Occupant Load = Net Floor Area / Area per Person (factor)
To determine the required width for a means of egress ___ in. is multiplied per person for stairways and ___ in. is multiplied per person for ramps or level exits components
- 0.3 inches for stairways
- 0.2 inches for ramps and level exit components
Minimum number of exits for:
- 500 or less
- More then 500
- At 1000
- 2 exits
- 3 exits
- 4 exits
When more then one exit is required for a building this rule is applied
One-half Diagonal Rule - requires that exits be located not less then one-half the length of the overall diagonal dimension of the room of building area
Define - Dead-end corridor
A corridor that has no outlet to egress and is more than 20’ in length
5 steps in determining the means of egress requirements
- Determine the occupant load
- Determine clear width of each component
- Determine egress capacity of each component
- Determine most restrictive capacity of each route
- Determine if egress capacity is sufficient
Four components of an effective public water supply
- Water supply source
- Treatment or processing facilities
- Means of moving the water
- Distribution system