When utilizing the skip-breathing technique, how long should each breath take? |
C. 5 seconds |
While inside the immediately dangerous to life and health (IDLH) atmosphere, the technique of buddy breathing is: |
A. considered unreliable by the National Fire Protection Agency (NFPA) and the National Institute on Occupational Safety and Health (NIOSH). |
What is a component of an open-circuit breathing apparatus? |
B. face piece |
What is one example of a hand-powered hydraulic spreader tool? |
C. rabbet tool |
The body of a ____ is surface-mounted on the inside of the door. |
B. rim lock |
Under ideal conditions, the proper place to stand when breaking window glass is ______ the window. |
B. to the windward side of |
Which statement regarding the K tool is correct? |
C. The back of the tool is shaped like the letter K and slides over the lock cylinder. |
Which portion of a Halligan tool has three areas designed as striking surfaces? |
B. Adz |
Which is the most common lock in use? |
A. cylindrical |
Fire doors are operated: |
A. manually, mechanically, electrically |
A K-Tool is correctly positioned when the blades bite into the: |
A. cylinder |
A _____ tool provides a mechanical advantage in forcing locks, opening doors, and forcing windows. |
D. prying |
The least desirable point to force entry into a structure is: |
D. a revolving door |
When caring for the axe head, remember to: |
C. make sure the blade is sharp |
Overhead doors are classified as: |
C. sectional, tilt-slab, roll-up |
Which is true regarding smoke? |
D. The denser the smoke, the more fuel it contains |
A firefighter who is lost in a structure and finds a firehose should remember: |
A. the male coupling indicates the direction to the exit |
When an extension ladder can be raised more than ____ feet, it must be equipped with staypoles/tormentor. |
C. 40 |
The transfer of heat by the movement of gases or liquid is known as: |
B. convection |
A class A fire is fueled by: |
B. ordinary combustible materials |
The chemical reaction between two or more materials that changes the materials and produces heat, flames, and toxic smoke is: |
B. exothermic heat reaction |
Vapor pressure is: |
C. the measure of the tendency of a substance to evaporate |
The fire triangle is composed of: |
B. heat, fuel and oxygen |
When a window is opened for the purpose of ventilation: |
C. screens must be removed |
At room temperature, combustion is supported at oxygen concentrations as low as_____ percent. |
C. 14-16 |
In the fire tetrahedron, what is the reducing agent? |
A. fuel |
In compartment fires, the ____ of the fuel in relation to the walls determines the amount of air that is entrained. |
B. location |
A parapet wall is best described as |
A. exterior wall extending above the roof line |
A type of wood framing that has vertical channels going from floor to floor, allowing a fire to travel uninterrupted is a _____ frame. |
C. balloon |
A chord is: |
B. the main member of a truss, the top or bottom structural element |
Which most accurately describes a Kerf cut? |
B. a single cut the width of the saw blade made in a roof to check for fire extension |
Which describes a horizontal member between arches that supports a type of trussless arched roof? |
A. purlin |
Which describes an opening sometimes cut in a roof between a trench cut and the fire? |
D. inspection cut |
What is another name for a Lamella arched roof? |
D. diagonal grid |
One application that uses engineered wood instead of solid lumber is: |
B. trusses |
V patterns are most often used to identify: |
B. the location of an object that burned |
Dump site selection should be based on: |
B. turn-around area for the tenders |
Tankers/Tenders are primarily used to transport water to the scene and have a capacity of: |
D. 1,000 gallons or more |
In general, the largest diameter pipes in a distribution system are the: |
B. Primary feeder Lines |
The recommended minimum pressure for water coming from a fire hydrant is: |
D. 20 psi |
Which is an advantage of power inverters? |
B. fuel efficiency |
Which statement regarding portable scene lighting is true? |
A. they generally range from 300-1500 watts |
Ground ladders should be tested: |
D. annually |
The hose load finish that is designed to have the last section of hose loosely laid across the hose bed is the: |
A. straight finish |
Which is an advantage of the accordion load? |
A. hose for shoulder carries can easily be taken from this load |
The development and implementation of a plan that incorporates specific goals to bring a fire under control is called a: |
C. strategy |
The difference between strike teams and task forces is: |
D. strike teams are of a similar kind and type, while task forces are any combination of single resources |
First arriving companies broadcast _____ reports to incoming units |
A. arrival |
When operating on a digital radio system, end users should expect: |
A. a minor time delay between transmitting and receiving |
A trunked digital radio system allows: |
C. different agencies on the same system |
The process of utilizing a series of radio frequencies among multiple users rather than assigning single frequencies to each other is referred to as: |
D. trunking |
Ultra-high frequencies (UHF) operate in the ________ bandwidth. |
C. 450 MHz- 460 MHz |
What is the configuration when a fire department switches from a duplex channel to a simplex channel for on-scene communications called? |
A. a talk-around channel |
A poisonous gas with the odor of almonds is: |
B. hydrogen cyanide |
The three crucial fireground operations that must go hand in hand to keep the operation as safe as possible are: |
A. fire attack, search and rescue, and ventilation |
When forcing entry through a locked wood checkrail/double-hung window, the pry should be made at the: |
B. center of the lower sash |
It is recommended that tempered plate glass should be shattered by striking: |
B. at the lowest corner with the pick end of a fire axe |
Type V construction is: |
B. wood frame |
Older heat detectors lack what feature that makes it difficult to track down the cause of an alarm? |
C. visual triggers that tell which device was activated |
When ordered to, the firefighter can shut down the sprinkler system by: |
B. closing the main control valve |
The flow of water from an individual sprinkler head can be controlled by using: |
B. sprinkler wedges or tongs |
What must be done to stop the flow of water to all sprinklers? |
C. close the sprinkler control valve |
Which statement regarding dry/drafting hydrants is correct? |
B. they are a pipe system with a pumper suction connection at one end and an open pipe at the other |
Which statement regarding dead-end water mains is correct? |
D. Hydrants on a dead-end water main will have a limited water supply |
Soft suction hosed is used for: |
A. transferring water from a hydrant to an apparatus |
Which statement regarding wet barrel and dry barrel hydrants is correct? |
C. Dry barrel hydrants use a valve at the base to control water flow to all outlets |
Every sprinkler system should have a primary water supply of adequate reliability, volume, and: |
D. pressure |
A fire hazard that arises from processes or operations that are related to a specific occupancy best defines a(n) ______hazard. |
A. special |
Which statement is true regarding steel as used for structural support in construction? |
C. steel may begin to fail at 1000 degrees F. |
Transfer of command: |
D. must include a situation status report to the relieving fire officer. |
In fire departments that have access to multiple radio channels, emergency operations should be: |
C. assigned a separate channel dedicated for use on that scene only |
Transfer of command is best accomplished: |
B. face to face |
A situation/ status progress report is provided upon: |
C. transfer of command |
Situation status/progress reports should be made ten minutes into the incident and at ______ minute intervals thereafter until the incident is under control. |
C. 10-20 |
A procedure is a(n): |
B. detailed guide to action |
Policies are examples of standing plans designed to provide: |
B. guidance for decision making |
The arrival report should contain: |
A. a situation evaluation |
Depth of char is: |
A. related to the intensity of the fire at a particular location |
A riser is a _____ pipe that supplies a sprinkler system. |
D. vertical |
A post indicator valve (PIV) is: |
C. a control valve that is mounted on a vertical case |
An OS&Y valve is open when the stem threads are: |
B. extended |
Which sprinkler system components is used to limit water flow to one direction? |
B. clapper/check valve |
Which is a component of a grid system? |
B. secondary feeders |
Failure to open a dry-barrel hydrant fully will result in a reduced amount of available water and will contribute to: |
D. ground erosion |
Visible products of combustion are best detected by a(n) _____detector. |
A. photoelectric |
Which sprinkler system component is used as an alternative to locking a main control valve in the open position? |
A. tamper switch |
The control valve for a sprinkler system may be located at the system or outside the building. This valve should be a(n) ______ valve. |
B. indicating-type |
Fixed-temperature heat detectors: |
B. are slow to activate |
Which statement regarding a Class I standpipe system is correct? |
C. it is designed for use by the fire department |
The backflow preventer or clapper valve: |
B. prevents water from reentering the public water supply |
Which statement regarding residential sprinklers is correct? |
B. the water supply can be connected to the domestic system. |
The type of hose testing conducted by the fire department is called: |
C. service |
When filling a hoseline with water for testing, a pump pressure of approximately ________ psi is maintained. |
B. 50 |
After the proper test pressure for fire hose has been reached, the pressure should be maintained for a period of: |
C. three to five minutes |
Fires involving pressurized flammable liquids and gases should: |
B. not be extinguished unless the fuel can be immediately shut off. |
For incidents involving a break in a natural gas line, firefighters should: |
B. eliminate ignition sources in the area |
One cubic foot of liquid propane will convert into ________ cubic feet of gas when it is released into the atmosphere. |
A. 270 |
Propane has a vapor density of approximately: |
B. 1.5 |
Propane is approximately ________ than air. |
C. 1.5 times heavier |
A DOT MC-331 tanker that is cylindrically shaped and painted white is probably carrying: |
B. liquefied petroleum gas |
The tanker that is about 40 ft. in length, aluminum, cylindrically shaped MC-306 that can carry approximately 9,000 gallons is probably carrying: |
C. gasoline |
A dangerous cargo manifest may be located in the: |
D. Wheel house or bridge |
A carboy may be used for transporting materials containing: |
B. corrosives |
Telecommunication Device and Teletype are: |
C. devices to help hearing-impaired people use telephones |
Over the last two decades, an average of more than _____ U.S. firefighters die each year in the line of duty. |
B.100 |
When attacking a vehicle fire, you should: |
B. approach from the side at a 45 degree angle |
A 50 foot steel beam will elongate as much as ____ inches when heated from room temperature to about _____degrees Fahrenheit. |
B. 9, 100 |
Rollover occurs when: |
A. there is spontaneous ignition of combustible gases |
The chemical reaction between two or more materials that changes the materials and produces heat, flames, and toxic smoke is: |
B. exothermic heat reaction |
Which statement regarding trench cuts is correct? |
B. the trench cut promotes vertical air flow |
Which way does the wheel on an OS&Y valve turn to close the valve? |
D. clockwise |
One of the most common hazards of salvage work is: |
C.ceiling collapse |
According to the National Fire Protection Association (NFPA) 291 standard, a fire hydrant color-coded green will flow: |
B. 1000-1499 gpm |
Pump tank extinguishers are used to apply: |
A. water |
For an area to qualify as a light hazard, the majority of materials must meet one of two requirements. One of those is that they must: |
D. be noncombustible |
In what groups or types are wildfire fuels generally classified? |
D. subsurface, surface and aerial |
How high up do fuels have to be in order to be considered aerial fuels? |
C. more than six feet |
An in-line eductor should be positioned less than ____ above the liquid surface of the foam concentrate in the container. |
D. 6 ft. |
Where should rescuers begin their cuts on a windshield? |
D. Top, center |
Select the best description of fire codes from the choices below. |
C. regulations that have been legally adopted by a government body with the authority to pass laws and enforce safety regulations. |
Fire department sprinkler connections typically consist of a siamese with at least two ____ connections. |
D. 2.5-inch female |
Heat stress is associated with: |
D. muscle cramps in legs and abdomen |
The physical destruction or decomposition of chemical protective clothing by a chemical action is called: |
A. degradation |
Chemical permeation rates are a result of: |
B. strength, flexibility, current exposure, and ambient temperature |
Caustic sodium hydroxide and potassium hydroxide are examples of: |
D. bases |
The most effective means of forcing a lexan window is by using a(n): |
C. rotary saw equipped with a carbide-tipped blade |
Concealed spaces can be created when a second roof is constructed over an older roof. The second roof is called a: |
B. rain roof |
A definition of ____ when trapped moisture in concrete is heated to steam and expands causing parts of the concrete to break away. |
C. spalling |
What should be expected in Type I construction? |
C. roofs are extremely difficult to penetrate |
The proper type of extinguisher for a fire involving magnesium, titanium, or sodium is: |
C. dry powder |
_____ is the total quantity of all combustible materials in a given area. |
B. fire/ fuel load |
The term for the open space between the ceiling of the top floor and the underside of the roof of a building is the: |
B. cockloft |
When attacking a fire in the passenger area, you should pay special attention to: |
D. cooling areas that contain supplemental restraints |
When performing search and rescue, you should: |
D. know that implementing a search line system requires a team of three or more firefighters |
A suppression action taken by a firefighter around the perimeter of a wildland fire is called: |
B. direct attack |
The two primary types of dangerous conditions that may be posed by a particular building are conditions that contribute to the spread of fire and: |
A. conditions that make the building susceptible to collapse |
The main difference between Types I and II construction is that: |
D. structural components n Type II construction lack insulation and protection. |
The location where emergency 9-1-1 calls are routed is referred to as a: |
A. public safety answering point |
A(n) ______ detector is one that responds to sudden changes in temperature. |
D. rate of rise |
The basic types of lifting bags are: |
A. high, medium, and low pressure |
Which release mechanism is commonly used to activate a sprinkler? |
D. chemical pellet |
The required air pressure for dry-pipe systems above trip pressure is _____ psi. |
D. 20 |
For a gravity system to work, the primary water supply must be at least ____ feet above the highest point in the water distribution system. |
B.100 |
When extricating a patient from a motor vehicle crash, disassemble refers to: |
D. actual taking apart of the vehicle components |
As a general guideline, you should cordon off_____ feet around the trench during rescue operations |
D.100 |
A detection device that is usually electrically operated with a bimetallic strip of two metals that expand at different rates is a(n): |
D. heat detector |
While assisting with a water rescue it is recommended that all firefighters operating within ____ of the water's edge wear a coast guard approved personal flotation device. |
A. 10 feet |
What are butt spurs on a ladder? |
D. Spikes on the base that keep it from slipping |
The dogs of an extension ladder serve to: |
B. hold the fly section in place |
Concrete has excellent ______ strength when it cures. |
B. compressive |
______ construction is often used in mill construction. |
C. heavy timber |
Which statement best describes Type I construction? |
D. structural members are protected from fire's heat to prevent loss of integrity |
When exposed to intense heat, a lightweight metal truss can: |
C. be expected to fail in 5 to 10 minutes |
What is the term for plastics that will melt under fire conditions? |
B. mineral salts |