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TCFP Exam 157 Questions and
Answers latest 2023
NFPA 1001 is the - ✔️ Standard for Firefighter Professional Qualifications
One of the primary functions of the truck/ladder company is - ✔️ performing forcible entry to fire scene buildings
OSHA may establish regulations governing fire department activities such as - ✔️ health and safety
In the ICS, the functional area responsible for all incident activities, including the development and implementation of strategic decisions, is - ✔️ Command
What normal body cooling mechanism is lost when wearing PPE? - ✔️ Evaporation of perspiration
What is one aspect of high rise fires that is especially draining of energy? - ✔️ walking up many flights of stairs in PPE
A _______ permits firefighters to gain access during an emergency - ✔️ key box/lock box
In kernmantle rope, the kern or core of the rope accounts for approximately _____ of its strength - ✔️ 75 percent
The combination of knots recommended to hoist a pike pole includes - ✔️ a clove hitch and half hitches
The order of rank and authority in the fire service describes - ✔️ chain of command
The street, or address side of the structure is termed - ✔️ Division A
The ratio of the mass of a given volume of liquid compared with the mass of an equal volume of water at the same temperature is - ✔️ specific gravity
Life safety rope should be stored in - ✔️ coils in rope bags
Toxic atmospheres due to smoke and heat are called - ✔️ immediately dangerous to life and health
Which of the following has the highest priority for radio transmission? - ✔️ Emergency traffic from a unit working at a fire or rescue
The telecommunicator's first responsibility is to - ✔️ obtain the information that is required to dispatch the appropriate units to the correct location
Before transmitting any information over the fire department radio, a fire fighter should - ✔️ listen to be sure the channel is not being used
When using positive pressure SCBA, a poor seal between the face piece and the firefighter's face is - ✔️ dangerous, because it is depleting the air supply more quickly
The bypass valve on a SCBA is used - ✔️ in emergency situations involving a malfunctioning regulator
The first noticeable sign of oxygen deficiency is - ✔️ increased respiratory rate and impaired muscular coordination
Four hazardous atmospheres that firefighters are likely to encounter at a fire are - ✔️ super heated air, toxic gases, oxygen deficiency, and smoke
Trapped firefighters awaiting rescue will use less air if they - ✔️ control their breathing
The primary function of the bypass valve on the SCBA is - ✔️ for use if the regulator fails
The proper position of the bypass valve on positive pressure SCBA under normal conditions is - ✔️ fully closed
Hypoxia is - ✔️ a deficiency of oxygen
inhaled toxic gases can directly cause - ✔️ disease of the lung tissue
What is incorrect about the two SCBA types in fire service use? - ✔️ The closed circuit type is commonly used for structural firefighting
The purpose of the PASS device is to - ✔️ sound and alarm if a firefighter is motionless for a set period of time
At the beginning of the shift, the firefighter should make sure their SCBA is at least __% full - ✔️ 90
Once overhead doors have forced, they should be - ✔️ blocked open
Which tool is a pulling tool? Crowbar, flathead ax, pike pole, halligan - ✔️ pike pole
What is one example of a hand powered hydraulic spreader tool? - ✔️ Rabbet tool
Overhaul operations should commence - ✔️ after fire investigation concerns are met
Which of the following is true regarding SCBA? - ✔️ All scba face pieces must be fit tested
A least desirable point for forcible entry is - ✔️ A revolving door
A personnel accountability system tracks which firefighters are assigned to each vehicle and - ✔️ Each crew's assignment
A hose roller is - ✔️ A curved metal frame that fits over the edge of a roof or windowsill
Solid stream handlines are designed to be operated at a nozzle pressure of ____ psi
Which of the following statements regarding the accordion load is incorrect - ✔️ It is the preferred way to load large diameter hose
What is the safest and best way to advance a hose line up a ladder? - ✔️ Charged
What is a recommended practice to prevent mechanical fire hose damage? - ✔️ Open and close nozzles, valves, and hydrants slowly
The usual cause of collapse of open web steel joist is the - ✔️ Amount of heat generated by the fire in a structure
Hidden fires can be detected by - ✔️ Feeling it with the back of the hand
What feature is required on a fire department connection that allows a ff to charge the first hose line prior to connecting the second - ✔️ Clapper valve
A blue circle with a letter designation in the center would indicate an extinguisher for use on ___ fires - ✔️ Class c
Dry powder extinguishers are rated for use on ____ metals - ✔️ Class D
Halon fire extinguishers are primarily designed for use on ____ fires - ✔️ Class B and C
A blue circle with a letter designation in the center would indicate an extinguisher is rated for use on ____ fires - ✔️ Class C
Pump tank extinguishers are used to apply - ✔️ Water
When drying synthetic rope, keep it - ✔️ Out of sunlight
_____ should be applied to wooden tool handles to prevent roughness and warping - ✔️ Boiled linseed oil
The main advantage of the donut roll - ✔️ Both ends are available on the outside of the roll
Hose is unloaded at the scene of a fire and the pumper proceeds to the water source this is - ✔️ A forward lay
About how much of a kernmantle rope's strength is provided by the mantle - ✔️ 25 to 30 percent
The strategy of an incident which of the following - ✔️ Offensive and defensive mode
What does automatic number identification feature of enhance 911 do? - ✔️ Show the caller's phone number
What is NOT a limitation of a ff's ability to use SCBA - ✔️ Oxygen cylinder size
When filling an SCBA cylinder, the cylinder must be - ✔️ Placed in a fragmentation containment or other shielded device
A cutting torch has a flame temperature of - ✔️ 5000 degrees f
During which of the following operations are personnel allowed to be outside the cab while an apparatus is in motion? - ✔️ hose loading
An informal discussion with incident responders conducted after the incident is known as: - ✔️ defusing
What is the minimum noise level, in decibels, which requires firefighters in the United States to wear hearing protection? - ✔️ 90
The instantaneous explosion of superheated gases that occurs when oxygen is introduced into an oxygen-depleted confined space is known as a: - ✔️ backdraft
Which of the following best represents nonflaming or smoldering combustion? - ✔️ fire triangle
Which of the following best represents flaming combustion? - ✔️ fire tetrahedron
What is the most common product of combustion encountered in structure fires? - ✔️ carbon monoxide
Controlling fire by interrupting the combustion reaction is known as: - ✔️ chemical flame inhibition
Which of the following is a type of expelling agent used in a portable fire extinguisher? - ✔️ stored pressure
What is the proper and safe position for an acetylene cylinder that is part of a cutting torch kit? - ✔️ secure and upright
What is the most common use of a chain saw during fire ground operation? - ✔️ ventilation
Why should the use of a cheater on a prying tool be avoided? - ✔️ the tool can break and injure the firefighter
What is the best method for sharpening the cutting edge of an axe? - ✔️ by hand
What is the best lubricant for unprotected metal surfaces? - ✔️ light machine oil
What is the device used to prevent a patio sliding door from being forced open? - ✔️ burglar block
Which type of overhead door is generally easiest to force unless it is motor driven? - ✔️ sectional
What are the devices attached to the inside of the beams on fly sections used to hold the fly section in place? - ✔️ pawls
Which type of ladder is used to gain access to attics and can be carried in narrow hallways? - ✔️ folding ladder
An extension ladder with the fly sections fully retracted is in the: - ✔️ bedded position
Where should the ladder tip be placed when using a ladder to perform a rescue from a window opening? - ✔️ tip of ladder just below windowsill
Which carry is typically used for a 35 ft. extension ladder? - ✔️ three firefighter flat shoulder carry
What is the minimum distance of separation between a ladder and energized electrical equipment? - ✔️ 10 feet
What is the proper location for the fly section of a metal ladder when the fly section(s) are extended? - ✔️ fly out
The tendency of gases to form into layers, according to temperature, with the hottest gases at the top is known as: - ✔️ thermal layering
How does ventilation control fire spread during a structural fire? - ✔️ The release of smoke and heat reduces the rate at which fire will spread.
What is a sign of a potential backdraft? - ✔️ smoke stained windows
What is the typical construction used for flat roofs on commercial buildings? - ✔️ joists covered with decking
What type of ventilation is used to stop the spread of a fire in a long, narrow structure? - ✔️ trench ventilation
Which type of valve used as a control valve for a sprinkler system indicates whether the valve is open or closed by the position of the center screw? - ✔️ OS&Y Valve
What is the difference between soft sleeve and hard suction hose? - ✔️ soft suction hose must be used with pressurized water sources
What is the best method for preventing mechanical damage to fire hose when the hose vibrates near the pumper? - ✔️ chafing blocks
What is used to make the connection between the male and female ends of a fire hose watertight? - ✔️ swivel gasket
What type of valve is used in pumper discharges and gated wyes? - ✔️ ball valve
What type of valve incorporates a flat baffle that turns 90 degrees? - ✔️ butterfly valve
_________________ is the quantity of heat absorbed by a substance at the point at which it changes from a liquid to a vapor. - ✔️ latent heat of vaporization
Water will expand approximately ________ times its original volume when heated to 212°F (100°C). - ✔️ 1700
Most master stream solid-stream devices are operated at _____ psi. - ✔️ 80
The designed operating pressure for most combination nozzles is: - ✔️ 100 psi
To be most effective in suppressing fuel vapors from an unignited fuel spill, a Class B foam blanket should be at least _______ thick. - ✔️ 4 inches
The ______________ method is used to apply foam by directing it onto a nearby object and allowing the foam to run down and onto the fuel's surface. - ✔️ bank down
The smallest handline used for interior fire fighting should be a ________ line. - ✔️ 1.5 inch
Firefighters can cool the hot gas layer overhead by applying short bursts of water fog into it using a ___________ degree fog pattern. - ✔️ 40 - 60
Except for quick attack devices, it is not practical to set up master stream devices with anything less than _______ 2½ inch hoselines. - ✔️ 2
Observations made by firefighters upon arrival at the fire scene include wind direction and velocity, the presence of burglary tools, and: - ✔️ familiar faces in the crowd of bystanders
______________ may produce abnormally high heat intensity and may be confused with the use of accelerants. - ✔️ Polyurethane
A ____________________________ is any location or facility at which 9- 1 - 1 calls are answered either by direct calling, rerouting, or diversion. - ✔️ Public Safety Answering Point (PSAP)
A predetermined number of fire units assigned to respond to an emergency is known as: - ✔️ alarm assignment
Two common emergency signals are broadcasting a radio message ordering the evacuation and: - ✔️ Sound the audible warning devices on apparatus at the scene.
Which of the following components of a fire is most manageable through fire prevention? - ✔️ heat source
Which of the following will cause mechanical heat energy? - ✔️ machine bearings
What fire hazard arises from the processes or operations peculiar to an individual occupancy? - ✔️ special fire hazard
Which of the following code violations must be corrected immediately by the property owner? - ✔️ obstructed exit door
