Chapter 14

Wall post indicator valve

This valve extends horizontally through the wall with the target and valve operating nut on the outside of the building

Outside screw and yoke valve

This valve has a yoke on the outside with a threaded screw that opens and loses the gate inside the valve housing. The threaded portion of the screw is visible beyond the yoke only when the valve is open.

Post indicator valve assembly

This valve uses a circular disk inside a flat plate on top of the valve housing. When the valve is open, the disk is perpendicular to the surrounding plate. It operates with a built-in crank

True true

True or False: Using water for cooling is the most effective method available for the extingument of smoldering fires

True

True or False: cooling hot gases overhead can reduce the risk of ignition and potential flashover to provide a safer operating environment

Fasle: Because wind can cause unpredictable changes to the fire, you should attack with the wind to your back

True or False: firefighters should attack with the wind blowing toward them to help combat any changes in fire pattern

False; FF must be able to control the flow of electricity into a structure

True or False: the ability to control electricity at a structure is not a priority for firefighter

True

True or False; Basement fires can weaken the floor joist of the level above, causing it to be structurally unstable

True

True or False; GNC and LNG tanks can rupture if exposed to fire, resulting in an explosion

False: gas cooling

True or false: An indirect attack is a way of reducing heat release from the hot gas layer

False; fire department personnel are not responsible for turning utilities back on and should not be attempted to do so

True or false: fire department personnel are responsible for turning utilities back on once the fire is under control.

True

True or false: heat from a vehicle fire could result in the engine hood struts overheating, which can cause the struts to launch with tremendous force

False; fire will usually spreed faster uphill then downhill, and the steeper the slop, the faster the fire will spread

True or false; fire will usually spread faster when burning downhill

False; weather is

True or false; topography is the most significant influence on ground cover fire behavior

Speed up the pyrolysis process of combustible materials

Using water to cool burning gases in a structure fire dose NOT: A. Reduce the potential for flashover B. Reduces radiant heat flux from the upper layer C. Limit or stop flaming combustion in the upper layer dD.Speed up the pyrolysis process of combustible materials

Interior Exposure

protection generally involves closing the doors or other openings between the fire area and the unaffected are and the proper use of tactical ventilation to ensure limited smoke movement

true

true or false:Fires in the upper levels of structures can require a large number of personnel to conduct large-scale evacuation, carry tools and equipment, and maintain a sustained fire attack

Indirect

—- attack should be used against ground cover fires that are too hot, too fast or to large for other types of attack

Finger

Long narrow strips of fire extending from the main fire,usually occurring when the fire burns into an area that has light fuel and patches of heavy fuel

True

True or False: When entering a structure, attack crews should stay low and out of the doorway while the door is forced open.

Fog

When attacking a fire in the passenger compartment, if normal entry is not possible, break a window and attack the fire with a medium —— pattern

Piercing

When combating an engine compartment fire, driving a —- nozzle through the hood, fenders, or wheel wells is not a safe tactical for hybrid or electric vehicles

5

When dealing with a hybrid-electric vehicle., it will take approximately—— minutes for energy in the system to dissipate when using inertia switches and pilot circuits to shut off the voltage system.

15 feet (5 meters)

When dealing with solar panel fires, the minimum distance to apply water using an automatic nozzle should be ———.

Class A fuel

When extinguishing a fire involving stacked materials, ——— will soak into the materials and coat the ground cover and exposures, preventing fire spread. This is very effective when applied with an educator or through a compresses- air foam (CAF) system.

Exposure Protection

Covering any objects in the immediate vicinity of the fire with water or foam

Clean Agent

A fire suppression agent that leaves litte to no reidue when used

Incident Safety Officer

A member of the command staff responsible for the monitoring and assessing safety hazards or unsafe situations and for developing measures to ensure personnel safety.

Black-Green

A safety principle for ground cover fires is to throw all burned/charred materials into the —— and scatter cut/unburned fuels into the —-

Flanks

Sides of a ground cover fire, roughly parallel to the main direction of fire spread

Topography

Physical configuration of the land or terrain.

Transitional

..... attack reduces the potential for flashover are creat a more survivable interior environment

liquefied petroleum gas (LPG)

Any of several petroleum products, such as propane or butane, stored under pressure as a liquid.

Department of Transportation DOT

At a vehicle incident —- guidelines should be used for protecting the scenario from vehicular traffic.

Flank Attack

Attack from the sides of a wildland fire and working along the fire edge toward the heed of the fire

Direct Attack (Structural)

Attack method that involves the discharge of water or a foam stream directly onto the burning fuel.

Exterior Exposure

Building or other combustible object located close to the fire building that is in danger of becoming involved due to heat transfer from the fire building.

Flashover

Closing a door to a fire room can limit the air supply to the fire and can prevent .....

Parallel Attack

Constructing a fireline parallel to a wildland fire's edge. After the line is constructed, the fuel inside the line is burned out.

Positive

Controlling ventilation with ...... pressure in adjoined, uninvolved area of a structure can also pressurized those areas isolate the fire to one area

Lockout/Tagout Device

Device used to secure a machine's power switches in order to prevent accidental re-start of the machine.

gas Cooling

Directing water into the hot gas layer to reduce the heat release rate in a compartment

Combination Attack

Extinguishing a fire by using both a direct and an indirect attack. This method combines the steam-generating technique of a ceiling level attack with an attack on the burning materials near floor level.

Transitional Attack

Fire attack from the exterior through a ventilation opening. The attack cools the fire compartment and helps transition the fire from ventilation-limited conditions to fuel-limited conditions.

shutting down a building's main sprinkler control valve should only be done once the

Fire is under control and the IC gives the order to do so

Shielded Fire

Fire that is located in a remote part of the structure or hidden from view by objects in the compartment

Class A foam

Foam specially designed for use on Class A combustibles. Class A foams, hydrocarbon-based surfactants are essentially wetting agents that reduce the surface tension of water and allow it to soak into combustible materials more easily than plain water.

House fires

Fuel removal is Not a common tactic for

Dry chemical

If a vehicle that uses biodiesel is on fire, use —— CO2, water fog spray, or foam to extinguish it.

Hydrogen fueled

If a —- vehicle is on fire, use a TI to see the flame; protect exposures and allow the fuel to burn off rather then attempting to extinguish the fire.

Location of the exposures

In structures equipped with standpipe, the —- will determine the method of fire attack A. Location of the fire B. Number of exposures C. Location of the standpipe D. Number of hoseline available

Direct Attack

In which type of fire attack is water applied onto the surface of the burning fuels until fire is extinguished? A. Direct attack B.Indirect attack C. Offensive Attack D. Defensive Attack

Indirect Attack (Ground Cover)

In wild land fire fighting, a method of controlling a fire in which a control line is constructed or located some distance from the edge to the main fire, and the fuel between the two points is burned.

Direct Attack (Ground Cover)

In wild-land fire fighting, an operation where actions taken directly on burning fuels by applying an extinguishing agent to the edge of the fire or close to it

Fire Line

In wildland fire fighting, part of a control land that is scraped or dug to mineral soil: also, general term for the area where fire fighting actives are taking place

liquefied natural gas (LNG)

Natural gas converted to liquid form by cooling it at a very low temperature then stored under pressure

Asphyxiant

Natural gas is classified as an —- because it may displace it may displace air in a confined space and lead to suffocation

compressed natural gas

Natural gas that is stored in a vessel at high pressure, usually between 2,400 to 3,600 psi

Islands

Patches of unburned fuel inside the fire perimeter

Anchor Point

Point from which a fire line is begun; usually a natural or man made barrier that prevents fire spread and the possibility of the crew being "flanked" while constructing the fire line, Examples include lakes, ponds, streams, roads, earlier burns, rockslides and cliffs.

Spot fire

Presents a hazard to personnel (and equipment) working on the main fire because they could become trapped between the two fires

Green

The area of unburned fuels next to the involved area

Origin

The area where the fire started and the point from which it spreads

Black

The areas in which the fire has consumed or "blackened" the fuels

Surface

The most common type of ground fire is the ——-=

Main breaker— meter shutoff

The only safe way to cut all power to a structure is at the —- or —-

Perimeter

The outer boundary, or the distance around the outside edge, of the burning or burned area

Head

The part of a ground cover fire that spreads most rapidly

Heel

The side opposite the head of the fire

C. Identifying potential emergency escape routes

What is a pre-entry consideration critical to firefighters safety and effectiveness? A. Opening the SCBA bypass valve B. Determining number of personnel needed C. Identifying potential emergency escape routes D. Ensuring that personnel accountability device are available if necessary

Class d

Which class of extinguishing agent wold be used on burning metal if combustible metal components become inc=valve d a vehicle fire

Natural gas

Which gas rise and diffuses in the open because it is lighter then air? A. Ethanol B. Propane C. Natural Gas D. Liquified petroleum gas

Open nozzle completely and put as much water on the fire as possible

Which method would NOT effectively control steam production? A.use good nozzle technique B. Apply the appropriate amount of water C.open nozzle completely and put as much water on the fire as possible D. Apply water using the most effective stream pattern based upon scene conditions

Post indicator valve

[this valve has a hollow metal post that house the valve stem with a movable plate with the words OPEN or SHUT visible through a small glass window on the side of the housing