Download IFSTA 7th Edition Exam Review: Chapters 1, 2, 3, 4, 5, 6, 16 and more Exams Safety and Fire Engineering in PDF only on Docsity!
IFSTA 7th edition - 251 Exam Review
Questions(Chapters 1,2,3,4,5,6,16)
What gives gypsum excellent heat resistant and fire retardant properties - ✔ ✔ water content
What is typically used for insulation and is located between interior
exterior walls in between ceilings and roofs - ✔ ✔ fiberglass
wire reinforced glass may make it difficult for firefighters to do what - ✔ ✔ forced entry
Small pieces of wood that are joined into longer boards using epoxy resins and glues - ✔ ✔ finger jointed timber
also known as plywood or glue lamb wood, these materials are sheets of wood often used for roof and floor decking, walls, and stair treads - ✔ ✔ laminated timber
this type of material is closer in appearance and strength to Harwood - ✔ ✔ medium density fiber board
made from small particles and flakes generated in the manufacturer of lumber, and is used for exterior and interior wall panels and furniture. Formaldehyde is one type of glue used to manufacture this - ✔ ✔ particle board
when should collapse potential be considered - ✔ ✔ during pre incident surveys and throughout the size up process until the situation is mitigated
Not likely to collapse, making the primary concern the hazard of flying glass from windows or curtain walls - ✔ ✔ type one collapse
consists of unprotected steel or non combustible supports such as I beams. But when exposed to temperatures above 1000 degrees unprotected steel will expand and twists pushing out walls but when cooled constrict - ✔ ✔ type 2 collapse
exterior load bearing walls are made of concrete, brick, or masonry, while interior loads are carried by wood, masonry or unprotected steel. Masonry construction walls can collapse in one piece or crumble - ✔ ✔ type 3 collapse
one of the least likely to collapse containing weight bearing capacity of large dimension wood members. Will resist collapse unless they have been affected by large volume of fire - ✔ ✔ type 4 collapse
may collapse inward or outward, plan for collapse own at any fire incident with this type of building - ✔ ✔ type 5 collapse
Fires in the______stage do not generate sufficient heat or flame to cause unprotected steel or wood frame construction to collapse - ✔ ✔ incipient
What is the length of the collapse zone - ✔ ✔ 1 1/2 times the building height
when should collapse zones be established - ✔ ✔ indication of structural weakness, defensive strategy, no interior operations can be justified, type of construction
each employee reports directly to just one supervisor moving up the chain of command, all personnel ultimately report to the fire chief - ✔ ✔ unity of command
maximum number of subordinates or functions that any one supervisor can control - ✔ ✔ span of control
ideal span of control - ✔ ✔ 3 to 7, but five is considered optimal
the process of dividing large jobs into smaller jobs to make them more manageable, to assign responsibility, to assign specific and clear cut tasks, and prevent duplication of effort - ✔ ✔ division of labor
departments staffed with by mixture of career and volunteer firefighters - ✔ ✔ combination department
multiple companies within a response area are grouped into a _______
Performs fire suppression duties at structure, vehicle, wildland and other types of fires - ✔ ✔ engine company
performs forcible entry, search and rescue, ventilation, salvage, overhaul, and utilities control - ✔ ✔ truck (ladder) company
searches for and removes victims from areas of danger and treatment - ✔ ✔ rescue company
extinguishers ground cover or grass fires and protect structures in areas close to fields or Woodlands - ✔ ✔ brush company
deliver services to the public - ✔ ✔ line personnel
provide administrative and logistical support for line personnel in areas such as finance, maintenance, and training - ✔ ✔ staff personnel
what does A H J stand for - ✔ ✔ authority having jurisdiction
A guide to decision making within an organization - ✔ ✔ policy
detailed written plans that list specific steps for approaching A reoccurring problem or situation - ✔ ✔ procedure
six major organizational functions of an incident command system - ✔ ✔ command, operations, planning, logistics, finance administration, and intelligence
what is the best way to remember the difference between firefighter one and firefighter 2 - ✔ ✔ if it sounds pretty cool it's firefighter 2, if it sounds boring and basic it's firefighter 1
what does NFPA mean - ✔ ✔ national fire protection association
what does NIOSH mean - ✔ ✔ National Institute for Occupational Safety and health
what NFPA number establishes safety requirements for all uses of fire department apparatus - ✔ ✔ NFPA 1500
what does IDLH mean - ✔ ✔ immediately dangerous to life and health
fire departments should provide all members with at least one full set of PPE but preferably - ✔ ✔ 2
how often should PPE be cleaned - ✔ ✔ after every exposure to smoke
all auxiliary equipment must be waterproof and design for the amount of electrical current it is intended to carry, what is this called - ✔ ✔ intrinsically safe
sometimes called A tag system company officers have a passport listing for every member of their crew - ✔ ✔ passport system
system that can provide more accountability data and greater safety, exit time is based on the air pressure and the lowest reading SCBA in the team - ✔ ✔ SBA tag system
What personal accountability system provides the greatest level of safety - ✔ ✔ computer based electronic accountability system
Provides A coordinated approach to a wide variety of incidents - ✔ ✔ all hazard concept
Regulates all radio communication in the United states - ✔ ✔ Federal Communications Commission FCC
using plain English rather than any agency specific codes such as 10 codes - ✔ ✔ clear text
radios used in fixed locations such as fire stations telecommunications centers, training centers, or administrative offices - ✔ ✔ base station radios
radios mounted in fire apparatus ambulances and other staff vehicles powered by the vehicles electrical system - ✔ ✔ mobile radios
handheld devices that are less powerful than fixed or mobile radios that are powered buy rechargeable or replaceable batteries - ✔ ✔ portable radios
distance, physical barriers, dead zones, interface, and ambient noise affect what - ✔ ✔ radio quality
what radio channel is assigned during an incident - ✔ ✔ tactical channel
what can be used to increase the area of coverage of a radio - ✔ ✔ repeater
Ways to overcome physical barriers when using your radio - ✔ ✔ turn your body 90 degrees, lift the portable radio higher, or raise the antenna up straight
How to position a portable radio - ✔ ✔ speak into radio at proper distance one to two inches, shield the radio from noise and wind with hand, keep antenna vertical
an entity responsible for receiving 911 calls and processing those calls according to a specific operational policy - ✔ ✔ public safety answering point (PSAP)
Separate telecommunications or dispatch centers that the fire department, emergency medical service, or law enforcement agency operates - ✔ ✔ emergency service specific telecommunication center
telecommunications device for the deaf - ✔ ✔ teletype
the energy that a moving object possesses is known as: - ✔ ✔ kenetic energy
The type of chemical reaction in which a substance absorbs energy is an: - ✔ ✔ endothermic reaction
when a fire transmits energy to an object some distance away from it through electromagnetic waves, this is an example of: - ✔ ✔ radiation
an example of an inorganic fuel is: - ✔ ✔ hydrogen
for flaming combustion to occur, fuels must be: - ✔ ✔ in the gaseous state
in order to burn, liquid fuels must: - ✔ ✔ vaporize
the temperature at which a piloted of sufficient vapors will begin a sustained combustion reaction is the: - ✔ ✔ fire point
the term that describes the extent to which a fuel substance will mix with water is: - ✔ ✔ solubility
what is the term used to describe flammable liquids that will mix readily with water? - ✔ ✔ polar solvents
pyrolysis occurs when a: - ✔ ✔ solid fuel is heated sufficiently so that it decomposes and gives off combustible vapors
what is the primary consideration when determining how easily solid fuels ignite? - ✔ ✔ surface-to-mass ratio of fuel
air normally consist of ______ percent oxygen. - ✔ ✔ 21
how would an atmosphere that has a low oxygen concentration of 15 percent affect combustion of materials? - ✔ ✔ materials could still ignite and burn at regular temperatures
which is a true statement about fires in a oxygen-enriched atmosphere? - ✔ ✔ materials that burn at normal oxygen levels will burn more intensely in an oxygen-enriched atmosphere
What is the concentration limit above which the gas or vapor is said to be too rich to burn? - ✔ ✔ upper explosive (flammable) limit (UEL)
flaming combustion is one example of: - ✔ ✔ chemical chain reaction
what occurs when an extinguishing agent interferes with the chemical chain reaction and stops combustion? - ✔ ✔ chemical flame inhibition
when sufficient oxygen is available for flaming combustion, a fire is said to be: - ✔ ✔ fuel-limited
in a ventilation-limited fire, the heat and growth is limited by the: - ✔ ✔ amount of oxygen available to the fire
which stage of fire development occurs when the fire is small and confined to the fuel fire ignited? - ✔ ✔ incipient
at the end of the growth stage, ventilation-limited fires tend to enter an early state of decay because there is no longer enough available ___________ for the fire to become fully developed. - ✔ ✔ oxygen
In the incipient stage of fire growth the: - ✔ ✔ compartment provides adequate oxygen and development depends on the fuel characteristics
when a fire draws in air from around it, this is known as: - ✔ ✔ entrainment
a ventilation-limited compartment fire can produce a large volume of flammable smoke and other gases due to: - ✔ ✔ incomplete combustion
what can lead to backdraft? - ✔ ✔ ventilating a space filled with fuel-rich smoke
anytime a compartment or space contains hot combustion products, firefighters must consider the potential for backdraft before: - ✔ ✔ creating any openings into the compartment
the fully developed stage occurs when the heat release rate of the fire has: - ✔ ✔ reached its peak
the most effective method of increasing the heat release rate in a fuel- limited, fully-developed fire is to: - ✔ ✔ provide more oxygen
adding ventilation points to a compartment fire that is ventilation- limited will: - ✔ ✔ add oxygen that will allow the fire to grow
which statement about a ventilation-limited compartments fire is true?
- ✔ ✔ it is not possible to make enough openings in a compartment to transition a fire from ventilation-limited to fuel-limited conditions
when a fire runs out of available fuel or oxygen, it is: - ✔ ✔ in the decay stage
the ________ in a structure fire consist of ambient air slow in and hot gases flowing out the exhaust. - ✔ ✔ flow path
which factor affects a flow path's effectiveness to transport ambient air throughout the compartment? - ✔ ✔ size of ventilation openings
which statement concerning flow path is true? - ✔ ✔ when firefighters create openings for ventilation or to make entry, the establish new flow paths
how can wind affect fire development in a structure fire? - ✔ ✔ it can create pressure differences that cause windows to fail and provide oxygen to the fire
a structure's fuel load is made up of: - ✔ ✔ all combustion materials inside, including any flammable construction materials
how is fire likely to react and spread within a structure? - ✔ ✔ a fire burning within hidden cavities in the building can make it more difficult to find and can increase the potential for collapse
which statement about a compartment fire is true? - ✔ ✔ given enough available fuel, fire will not follow oxygen through a building along any available flow path
which feature of modern construction (homes built after 1990) poses problems for firefighters during extinguishment and ventilation? - ✔ ✔ synthetic interior finishes and light wood components
how can lightweight or engineered trusses react under fire conditions?
- ✔ ✔ the trusses can fail without warning, even without flame contact
which statement relating to buildings under construction, renovation, or demolition is true?, - ✔ ✔ inoperative standpipes and sprinkler systems have become a contributing factor in fires in buildings under demolition
In order to stay as safe as possible while wearing SCBA, it is important to: - ✔ ✔ keep SCBA on and activated until you leave the IDLH area.
What should be done during routine inspections of PPE, such as after use at an incident? - ✔ ✔ Look for damage like rips or tears
Which statement about replacing SCBA cylinders is MOST accurate? - ✔ ✔ Changing out SCBA cylinders can be accomplished by either one or two people.
Which type of breathing air source would be found inside a high-rise building? - ✔ ✔ Firefighter Breathing Air Replenishment System
Which piece of wildland fire fighting PPE is a piece of flame-resistant fabric that attaches to the helmet? - ✔ ✔ Face/neck shroud
What are mobile fill stations designed to do? - ✔ ✔ Refill air cylinders during emergency incidents
Which piece of information must be included on the permanent compliance label inside each piece of PPE? - ✔ ✔ Cleaning precautions
Which statement about inspecting PPE is accurate? - ✔ ✔ PPE must be inspected at the start of every shift and after every use.
Which piece of PPE can provide a secondary layer of eye protection in addition to an SCBA facepiece? - ✔ ✔ Helmet faceshield
What should you do if you determine that your PPE requires advanced repairs? - ✔ ✔ Report the needed repairs to your supervisor
In order to avoid contaminating living quarters, _____ should NOT be worn during emergency operations. - ✔ ✔ station footwear
Which type of cleaning can be done at an incident scene by brushing off loose debris and rinsing the PPE? - ✔ ✔ Routine cleaning
Which SCBA equipment limitation would MOST directly impact a firefighter's ability to navigate on scene? - ✔ ✔ Limited visibility
Which statement regarding the use of fire fighting helmets is accurate?
- ✔ ✔ Ear flaps must be folded down, even if wearing a protective hood.
How can a firefighter help ensure that they will not be affected by limitations caused by equipment that is in poor condition? - ✔ ✔ Frequent inspections and maintenance
Which situation would likely be granted an exception to the rule that prohibits filling an unshielded air cylinder while a firefighter is wearing the SCBA? - ✔ ✔ A rapid intervention crew (RIC) is rescuing a trapped or incapacitated firefighter.
If the pressure reading on the remote pressure gauge does not match the reading on the regulator gauge, which reading should be assumed correct? - ✔ ✔ The lowest number reading
When exiting an IDLH environment, it is important to: - ✔ ✔ use the same path that you used to enter.
Annual SCBA inspections and maintenance should be performed by: - ✔ ✔ specially trained, factory-qualified technicians.
Firefighters should wear SCBA in hazardous atmospheres, because exposure to particulate contaminants such as _____ can cause lung cancer or cardiovascular disease. - ✔ ✔ vehicle exhaust emissions
What is a function of station and work uniforms? - ✔ ✔ Identify wearer as a member of the fire department
IDHL - ✔ ✔ Immediately Dangerous to Life and Health
While on duty, firefighters should avoid wearing: - ✔ ✔ clothing made of non-fire-resistant synthetic materials.
What should be done after doffing SCBA? - ✔ ✔ Close the cylinder valve.
The SCBA backplate and harness assembly: - ✔ ✔ is used to hold the breathing air cylinder.
Immediately prior to donning SCBA, firefighters should: - ✔ ✔ check the cylinder gauge to make sure the cylinder is full.
Which situation would require firefighters to wear hearing protection? - ✔ ✔ Operating power tools
Which component of the protective coat is designed to make firefighters more visible at night or in low light conditions? - ✔ ✔ Retroreflective trim
What is a general safety precaution to take when refilling an SCBA cylinder? - ✔ ✔ Check the hydrostatic test date of the cylinder.
In order to avoid contact burns and heat stress after leaving a heated environment, firefighters should: - ✔ ✔ follow rehabilitation protocols and allow clothing to cool.
Open-circuit SCBA models: - ✔ ✔ provide compressed air to the wearer.
Side- or rear-mounted SCBA: - ✔ ✔ are mounted on the exterior of the apparatus.
The end-of-service-time indicator (EOSTI): - ✔ ✔ uses an audible alarm and flashing light or vibration to warn the wearer that the air supply is almost depleted.
What should be done if an article of protective clothing is damaged beyond repair? - ✔ ✔ It should be removed from service and destroyed.
Which situation would be classified as an emergency exit indicator that would signal the need to leave the hazardous or contaminated area immediately? - ✔ ✔ SCBA failure
How do firefighter breathing air replenishment systems make fire fighting operations in high-rise buildings more efficient? - ✔ ✔ Provide an endless supply of breathing air to any floor within the structure
SCBA can help protect from _____, which can be caused by inhaling heated gases. - ✔ ✔ asphyxiation
