FIRE CONTROL CH 15
the potential for BLEVE is of particular concern with which vehicle fuel? a- CNG b- LPG c- Hydrogen d- LNG
B- LPG
What is the maximum diameter of a small diameter hose SDH? A- 1" - 25MM B- 1" - 38MM C- 2" - 50MM D- 1" - 45MM
C- 2" - 50MM
what is the minimum hose size for interior attack? a- 1" 38mm b- 1" 25mm booster line c- 2" 65 mm d- 1" 45mm
a- 1" 38mm
a flammable liquid has a flash point less than a- 100 F b- 50 F c- 150 F d- 212 F
a- 100 F
unprotected steel structural members elongate when exposed to temperature as low as a- 1000 F b- 750 F c- 1250 F d- 1500 F
a- 1000 F
what is the volume range delivered from a 1" 38mm line? a- 40 to 125 gpm b- 75 to 125 gpm c- 50 to 150 gpm d- 60 to 150 gpm
a- 40 to 125 gpm
What is the minimum nozzle flow for a vehicle fire? a- 95 gpm b- 120 gpm c- 150 gpm d- 75 gpm
a- 95 gpm
when opening the door of a structure on fire, you observe inward air movement at the bottom of the doorway, and outward smoke movement at the top. what does this indicate? a- active fire b- incipient fire c- ventilation controlled fire d- decaying fire
a- active fire
What is the sixth of the Ten Standard Fire Fighting Orders? a- be alert, keep calm, think clearly, act decisively b- be alert for signs of a changing situation c- observe the fire, or be in contact with someone who can, at all times d- always have a contingency plan
a- be alert, keep calm, think clearly, act decisively
Which hazard is of particular concern during master stream operations? a- building collapse b- crew coordination c- disruption of tactical ventilation d- walking off the device
a- building collapse
Which agent is the best for use on computer equipment? a- clean agent b- multi purpose dry chemical c- high pressure fog d- loaded stream
a- clean agent
Preventing the incident from expanding describes which strategy? a- defensive b- combination c- offensive d- transitional
a- defensive
which is the correct strategy for a building that is fully involved in fire and threatening adjacent exposure? a- defensive b- combination c- transitional d- offensive
a- defensive
which terrain feature is the most likely to create a chimney effect? a- drainage b- slope c- ridge d- cliff
a- drainage
Which hazard is of particular concern with a steel service mast? a- electrical shock b- high voltage c- toppling d- sparking
a- electrical shock
What is the tenth of the Ten Standard Fire Figthing Orders? a- fight fire aggressively but provide for safety first b- always start from a safe anchor point c- start on the flanks, not at the head d- focus on what's not burning, not what is burning
a- fight fire aggressively but provide for safety first
What is the eighth of the Ten Standard Fire Fighting Orders? a- give clear instructions and ensure they are understood b- everyone gets a fire shelter and training to use it c- always escape sidehill, downhill, or into the black d- always establish a lookout
a- give clear instructions and ensure they are understood
Proper application of water is most likely to extinguish a fire involving which one of these flammable liquids? a- heavy fuel oil b- alcohol c- kerosene d- gasoline
a- heavy fuel oil
Which statement about liquefied petroleum gas LPG is correct? a- it can lead to asphyxiation by displacing oxygen b- it is stored in a gaseous state c- it is a liquid when under normal atmospheric pressure d- it is transported from distribution facility to the point of usage via pipeline
a- it can lead to asphyxiation by displacing oxygen
which statement about a rapid intervention crew is correct? a- it may be assigned fire ground duties as long as it remains available for immediate deployment b- it is made up of business/industry experts in specialized hazards c- it consists of minimum of three members d- it is required only on hazardous materials and confined space rescue incidents.
a- it may be assigned fire ground duties as long as it remains available for immediate deployment.
Which statement about cutting utility wires is correct? a- it should be done only by utility personnel b- the line should be cut as close to the structure as possible c- it should be done only with insulated, non conductive cutters d- cut only those lines that are motionless and silent
a- it should be done only by utility personnel
what does the L in LCES stand for? a- lookouts b- life safety c- line d- location
a- lookout Lookouts, Communication, Escape routes, Safety zones
what is the seventh of the ten standard fire fighting orders? a- maintain communication with your crew, your supervisor, and adjoining forces b- all crew members must understand the objective, the tactics, the possible hazards, and the emergency plan c- avoid constructing fireline downhill with fire below d- recognize current weather conditions and obtain forecasts
a- maintain communication with your crew, your supervisor, and adjoining forces
What is pure natural gas? a- methane b- heptane c- propane d- butane
a- methane
what is the minimum supply for a small, quick attack master stream device? a- one 2" line b- two 2" lines c- two 3" lines d- one 3" line
a- one 2" line
what is topography? a- physical configuration of terrain b- geographical landmarks c- maps depicting elevation d- local weather conditions
a- physical configuration of terrain
What is the minimum equipment for extinguishing a small engine compartment fire? a- portable extinguisher b- 1" booster line c- 1" 45mm line d- 1" 38mm line
a- portable extinguisher
the R in RECEO-VS is a- rescue b- rapid intervention team/crew c- re evaluate d- resources
a- rescue (Rescue, Exposure, Confine, Extinguish, Overhaul and Ventilate, Salvage
Volume of water required, speed of deployment and the need for mobility are factors to consider when a- selecting a hoseline b- choosing between interior or exterior attacks c- selecting a water supply d- choosing between direct, indirect or combination attacks
a- selecting a hoseline
What is the ambient temperature's most significant effect on wildland fuels? a- water content of fuels b- vapor production c- brings fuels closer to ignition temperature d- available water supply
a- water content of fuel
which statement about operations in high voltage electrical installations is correct? a- full decontamination of the entrant and his/her PPE may be necessary b- when searching, probe with your hand instead of a tool c- use water fog for firefighting d- a thermal imager will be ineffective when used in close proximity to high voltage equipment.
a-full decontamination of the entrant and his/her PPE may be necessary
What is the typical volume delivered from a master stream device? a- 500 to 2000 gpm b- 350 to 2000 gpm c- 350 to 2500 gpm d- 500 to 1200 gpm
b- 350 to 2000 gpm
The second E in RECEO-VS is a- extension b- extinguishment c- evaluate d- establish command
b- Extinguishment (Rescue, Exposure, Confine, Extinguish, Overhaul and Ventilate, Salvage)
Your hose team is preparing to make entry into a structure for interior attack. Of the actions listed below, which should be done first? a- attach a hose strap to the door b- check the door for heat c- chock the door d- force the door
b- check the door for heat
which statement about liquefied petroleum gas is correct? a- it is toxic b- common uses are rural and mobile c- it is distributed to consumers primarily by pipleline d- leaked vapors will rise and dissipate
b- common uses are rural and mobile
in ground cover firefighting, fire spread will be affected by the distance between the available fuels. What term is used to refer to this? a- density b- continuity c- flow d- compactness
b- continuity
spraying water on a structure that is adjacent to a fire is an example of a- direct attack b- exposure protection c- indirect attack d- deploying a water curtain
b- exposure protection
for which situation is a solid stream nozzle best suited? a- exposure protection b- exterior attack c- backup interior attack hoseline d- interior attack
b- exterior attack
what is an area of unburned fuel within a ground cover fire perimeter? a- green b- island c- safety zone d- spot
b- island
what is the correct way to handle a hybrid vehicle fire? a- discharge dry chemical into the fire area b- isolate the vehicle and protect exposures c- cover the vehicle with AFFF d- turn off the ignition system and remove the proximity key
b- isolate the vehicle and protect exposures
Which statement about liquefied petroleum gas LPG is correct? a- it is also known as natural gas b- it is stored as a liquid under pressure c- it is distributed for consumption as a non-pressurized liquid d- it is lighter than air
b- it is stored as a liquid under pressure
which statement about applying hose streams to elevated transformers is correct? a- it will prevent spread of hazardous transformer contents b- it should be done only if called for in agency SOPs c- use just enough water to cool but not extinguish the fire d- it will promptly and safely extinguish the fire
b- it should be done only if called for in agency SOPs
When protecting a pressurized flammable gas vessel exposed to fire, how should streams be applied? a- on the relief valve dome b- lobbed on top of the tank so that it runs down both side c- on the tank below the level of the contained liquid d- as a water curtain between the tank and the heat source
b- lobbed on top of the tank so that it runs down both sides
which initial command option is appropriate when the problem is not immediately obvious and requires further investigation? a- formal b- nothing showing c- command d- transfer
b- nothing showing
Where should the connection to a standpipe in an unprotected location be made? a- one floor above the fire floor b- one floor beneath the fire floor c- two floor beneath the fire floor d- on the fire floor
b- one floor beneath the fire floor
In a hybrid or electric vehicle, what color are high voltage cables? a- red b- orange c- yellow d- black
b- orange.
What is the basis control of ground cover fires? a- cooling quenching b- perimeter control c- smothering d- fuel isolation
b- perimeter control
Which weather factor largely determines the moisture content of live fuels? a- wind b- precipitation c- temperature d- relative humidity
b- precipitation
what is the purpose of lockout/tagout devices? a- provide accountability for emergency personnel working in confined spaces b- prevent unauthorized activation of machinery or electrical equipment c- mark areas restricted access d- enable owner/occupants to control access to sensitive areas
b- prevent unauthorized activation of machinery or electrical equipment
Which action will negatively disrupt thermal layering? a- inadequate volume of water applied to the fire b- prolonged application of water c- applying water directly on a freeburning fire d- overhead ventilation
b- prolonged application of water
sound and flame erupting from a relief valve are intensifying. what does this mean? a- pressure in the vessel is decreasing b- the vessel is about to rupture c- the valve is effectively venting pressure d- the vessel contents are beginning to boil
b- the vessel is about to rupture
Which ground cover firefighting term means "the amount of fuel in a given area" a- continuity b- volume c- compaction d- mass
b- volume
what is the most likely effect of standing in runoff containing fuel? a- rapid material degradation of boots b- wicking of the fuel into clothing c- rapid material degradation of protective clothing d- absorption of the fuel into the skin
b- wicking of the fuel into clothing
for a pressurized flammable liquid/gas storage vessel involved in fire, a minimum of __ should be applied to each point of flame impingement a- 1000 gmp b- 250 gpm c- 500 gpm d- 750 gpm
c- 500 gpm
which is an effective extinguishing agent for an ethanol or methanol gasoline blend? a- AFFF b- FFFP c- Alcohol resitant foam d- dry chemical
c- alcohol resistant foam
in which command option does the first in officer serve as incident commander while performing fireground tasks? a- formal b- tactical c- combat d- fast attack
c- combat
A crew directs a stream at ceiling level to cool the gas layer, and at burning material at floor level. This is an __ attack a- direct b- indirect c- combination d- mixed
c- combination
Your hose team has made entry into a structure. You cannot see what is burning. overhead is a layer of hot gas and smoke. what action should you take? a- cool the ceiling b- open the ceiling with a pike pole c- cool the gas layer d- advance to the seat of the fire
c- cool the gas layer
what does the E in LCES stand for? a- everyone accounted for b- establish lookouts c- escape routes d- exposures protected
c- escape routes
For which one of these applications is a master stream best suited? a- mobile attack b- offensive operations c- exposure protection d- backing up handlines making an interior attack
c- exposure protection
the parts of a ground cover fire that separate the heel from the head are the a- fingers b- perimeter c- flanks d- sides
c- flanks
what is the fastest moving part of a ground cover fire? a- finger b- face c- head d- front
c- head
Which control method is typically used against fast moving, hot ground cover fires? a- mobile b- direct c- indirect d- pincer
c- indirect
which statement about natural gas is correct? a- it is used primarily in campers, RVs, mobile homes, etc. b- it is not subject to BLEVE c- it is lighter than air d- it is also known as bottle gas
c- it is lighter than air
What is the correct action to take for flammable gas burning from a leaking pipe? a- extinguish the fire and disperese leaking gas using fog streams b- extinguish the fire by any means available c- let it burn unless the source of the leak can be shut off d- blow out the flame with a straight or solid stream
c- let it burn unless the source of the leak can be shut off
Interior attack on the seat of the fire is an example of which strategy? a- command b- fast attack c- offensive d- tactical
c- offensive
What is the function of a fire department connection FDC? A- connect a pumper to a static water supply b- connect a pumper to a private water system c- provide pumper support for a sprinkler system or standpipe d- reduce cycle time in a water supply relay operation
c- provide pumper support for a sprinkler system or standpipe
All are common sprinkler system control valves EXCEPT ONE. CHOOSE THE EXCEPTION a- outside stem and yoke b- wall post indicator c- quarter turn d- post indicator
c- quarter turn
Your apparatus is in contact with an energized electrical line. From the list below, what is the best option? a- jump clear of the vehicle b- use a non-conductive tool to dislodge the wire from the vehicle c- remain inside the vehicle d- carefully step off the vehicle
c- remain inside the vehicle
what is best summarized by look up, look down, look all around? a- ongoing size up b- personal responsibility c- situational awareness d- tactical assessment
c- situational awareness
Which statement about using a fog stream to sweep flames on a flammable liquid fire is correct? a- a narrow fog stream should be directed over the surface of the liquid with the bottom of the fog cone parallel with the liquid b- the center of the fog stream should be directed into the main body of the flames c- the leading edge of the fog pattern should be kept in contact with the liquid d- a solid stream can be used to create waves to roll the burning liquid to the desired location
c- the leading edge of the fog pattern should be kept in contact with the liquid
which is the safest approach to a pressurized flammable gas or liquid storage vessel involved in fire: a- from the ends b- perpendicular to the side c- there is no safest approach d- at a 45 degree angle to the side
c- theres is no safest approach
what is the minimum supply for a standard master stream device? a- two 3" lines b- three 2" lines c- two 2" lines d- three 3 " lines
c- two 2" lines
How should extra attack line connected to a standpipe in a stairway be laid out? a- roughly equal lengths goin up and down the stairs from the fire floor landing b- dwon the stairwell below the fire floor c- up the stairwell toward the landing above the fire d- horseshoed on the fire floor landing
c- up the stairwell toward the landing above the fire
What is the typical volume delivered from a 2" line? a- 75 to 225 gpm b- 100 to 250 gpm c- 100 to 300 gpm d- 125 to 350 gpm
d- 125 to 350 gpm
A high voltage building electrical system is one that exceeds __ volts a- 480 b- 110 c- 220 d- 600
d- 600
From which direction should you approach a vehicle fire? a- perpendicular to the front b- perpendicular to the side c- from the side opposite the fire d- at a 45 degree angle from the side of the vechicle
d- at a 45 degree angle from the side of the vehicle
To conduct a direct attack on a ground cover fire, where would you construct a control line? a- at an accessible natural firebreak b- at the area of lowest fuel continuity closest to the head c- inside the burning edge of the fire d- at or near the burning edge of the fire
d- at or near the burning edge of the fire
which precaution is of particular importance when initiating a blitz attack? a- control of utilities b- prompt and effective ventilation c- placement of ground ladders d- coordination with other operations
d- coordination with other operations
When performing a blitz attack, which problem is of particular concern? a- crew stress and fatigue b- overloading of decks, balconies and overhangs c- spread of fire to exterior exposures d- creating hazards for interior crews
d- creating hazards for interior crews
which strategy is the most appropriate when available resources are insufficient to implement offensive tactics? a- withdrawl b- combination c- transitional d- defensive
d- defensive
what is the most efficient way to use water on a freeburning fire? a- removal and immersion b- indirect attack c- combination attack d- direct attack
d- direct attack
Which task is commonly assgined to the second in engine company? a- property conservation b- forcible entry c- initiation of extinguishment d- establish adequate water supply
d- establish adequate water supply
in which command option does the first in unit take immediate action to stabilize the situation? a- command b- tactical c- offensive d- fast attack
d- fast attack
Which factor might warrant a transition from offensive to defensive strategy? a- A MAYDAY has been broadcast b- the fire has been knocked down c- smoke has spread throughout the building d- fire conditions are rapidly worsening
d- fire conditions are rapidly worsening
in which command option does the first in officer remain at the apparatus mobile radio and assign tasks to other responding units? a- combat b- strategic c- defensive d- formal
d- formal
What should you do if you feel the effects of ground gradient? a- run in the direction opposite the point of contact b- maintain contact with mineral soil at all times c- maintain your position until the line can be de-energized d- hop with bot feet together until outside of the field
d- hop with bot feet together until outside of the field
what is the fourth of the ten standard fire fighting orders? a- dont go in if there's only one way out b- determine the objectives and devise a plan c- establish trigger points and make them know d- identify safety zones and escape routes and make them know
d- identify safety zones and escape toutes and make them known
which is a priority of the first in engine company a- assiting in extinguishment b- protecting the secondary means of egress c- establishment of RIT/RIC d- initiating master streams operations
d- initiating master streams operations
Which is a characteristic of a polar solvent? a- it acts as an emulsifier b- it floats on water c- it mixes with liquid hydrocarbons d- it mixes with water
d- it mixes with water
Wha is the second of the Ten Standard Fire Fighting Orders? a- observe the weather for changes b- all personnel must be accounted for at all times c- do not accpet an assignment without a clear objective d- know what the fire is doing at all times
d- know what the fire is doing at all times
In general, the first search priority is the area a- where occupants are most likely to survice b- that is most easily protected c- with the greatest number of threatened occupants d- most severely threatened
d- most severely threatened
When protecting an exposed flammable liquid vessel, where should streams be directed? a- on the tank below the level of the contained liquid b- on the relief valve dome c- applied as a water curtain between the tank and the heat source d- on the upper part of the tank
d- on the upper part of the tank
How is liquefied petroleum gas LPG usually stored? a- an underground tank b- underground pipes c- an idoor storage vessel d- outdoor cylinder or tank
d- outdoor cylinder or tank
a BLEVE is a flammable liquid vessel a- safety valve vapor discharge and ignition b- rupture and explosion due to relief valve failure c- rupture due to ignition of contents d- overpressure and rupture caused by external heating
d- overpressure and rupture caused by external heating
For which operation should a master stream device be attended by a firefighter throughtout its operation? a- protect a transport vessel containing flammable liquid from flame contact b- keep an LPG storage vessel cool c- contain fire to an old, unreinforced masonry warehouse d- protect exposures in a commercial district
d- protect exposures in a commercial district
how should electrical power be controlled for a large commercial building with a fire contained in a single compartment? a- leave the power on b- throw the main switch at the service panel c- pull the meter d- selectively shut down power
d- selectively shut down power
What is the primary safety concern for firefighters regarding sealed struts in modern automobiles? a- they contain highly carcinogenic substances b- they may leak flammable vapors c- the hardened components can shatter hydraulic cutters d- they are subject to rupture when heated
d- they are subject to rupture when heated
Water should be applied to a hot overhead gas layer until a- the layer begins to drop b- visible flame disappears c- steam fills the compartment d- water droplets begin to fall
d- water droplets begin to fall
what is the volume range delivered from a 1" 45mm line? a- 60 to 175 gpm b- 60 to 150 gpm c- 40 to 125 gpm d- 40 to 175 gpm
d-40 to 175 gpm
