Sprinkler heads manufactured before the mid-1950s were designed to direct part of their water stream upward toward the ceiling, while heads manufactured after the mid-1950s deflect the entire stream downward toward the fire. What is an important compatibility rule that follows from this design change?

New-style heads may replace old-style heads, but old-style heads should not replace new-style heads

Fluoroprotein foam is built from the same base materials as protein foam, with fluorochemical surfactants added. What practical difference does that additive package make on a hydrocarbon fire?

It produces a fast-spreading film, where protein foam tends to spread slowly.

While conducting a preincident survey of a large manufacturing building, a company applies its department's approved calculation method using the building's size, construction, contents, and exposures. What is the company calculating?

The water flow rate needed to fight a fire involving the entire building

A fire investigator has tested several hypotheses for a fire's cause. One hypothesis has the highest level of certainty among those tested, but that certainty is calculated at only 40%. How should this fire's cause be classified?

As a possible cause, since no hypothesis reached the 50% certainty threshold required for a probable cause

As part of an E.D.I.T.H. presentation, why should residents be taught to keep bedroom doors closed during sleeping hours?

It prevents smoke, heat, and flames from reaching the bedroom

The textbook contrasts two management styles used by fire departments. Which style does it describe as remaining the norm during actual emergency scene operations, even as departments increasingly use a more participative model for routine, day-to-day work?

A paramilitary chain of command in which senior officers give orders that lower ranks carry out without question

Which finding during a preincident survey is an example of a fire-spread feature that must be documented specifically because it cannot be seen from outside the building?

A single attic space running above several separate occupancies

A portable in-line foam eductor is typically sized to match which attack line hose diameters?

1½ in. (38 mm) or 1¾ in. (45 mm)

An early-suppression fast-response (ESFR) sprinkler head, which has an improved heat collector and a larger orifice than a standard head, is most likely to be installed in which type of occupancy?

A large warehouse or distribution facility

The mnemonic FAILURE is used to describe common reasons rescuers fail or become victims themselves at a technical rescue incident. What does the "U" in FAILURE stand for?

Underestimating the logistics of the incident

Which statement correctly distinguishes the level of supervision under which a Fire Fighter I and a Fire Fighter II are each expected to perform?

Fire Fighter I operates under direct supervision, while Fire Fighter II operates under general supervision.

Fire fighters arrive at a large commercial building whose fire alarm control unit sits in a mechanical room well inside the structure. A separate panel mounted just inside the main entrance displays which device activated and where. What is the purpose of that entrance panel?

It shows arriving crews the type and location of the activated device without finding the control unit.

A fire fighter is preparing a preincident plan for an older building whose interior was extensively remodeled several years ago and is now fully finished. Why is the completed remodeling itself treated as a hazard worth documenting?

Remodeling can defeat original fire-resistant separations and add concealed void spaces

During the “Drop” step of Stop, Drop, and Roll, why should the person cover his or her face with the hands?

To protect the airway and the eyes

The ICS organization chart is built around five major functional components. Which list correctly names all five?

Command, operations, planning, logistics, finance/administration

When transmitting a mayday using the LUNAR reporting format, what does the letter 'A' represent?

Amount of air remaining in the cylinder, or the fire fighter's last assignment

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Free TCFP Firefighter II practice questions with answers

Twenty-five original, source-verified TCFP Firefighter II questions with full answers and rationale below, free to read, no account required. A new set every day.

Question 1
Sprinkler heads manufactured before the mid-1950s were designed to direct part of their water stream upward toward the ceiling, while heads manufactured after the mid-1950s deflect the entire stream downward toward the fire. What is an important compatibility rule that follows from this design change?
- Old-style heads may replace new-style heads, but not the reverse
- New-style heads may replace old-style heads, but old-style heads should not replace new-style headsCorrect
- Old-style and new-style heads are fully interchangeable in any system
- Neither style may ever be replaced with the other under any circumstance
Why: Because old-style heads (pre-mid-1950s) direct part of the stream up toward the ceiling while new-style, or standard spray, heads deflect the entire stream down toward the fire, new-style heads can replace old-style heads, but old-style heads should not be used to replace new-style heads due to their different coverage patterns. The heads are not simply interchangeable in either direction, nor are replacements categorically prohibited. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire Detection, Suppression, and Smoke Control Systems, p. 975.
Question 2
A dedicated foam apparatus proportions concentrate with a device that pumps the concentrate into the water stream under pressure, while a metering system reads the water flow and pressure and adjusts the rate to match. Which type of proportioner is this?
- Portable in-line eductor
- Bypass eductor
- Batch mixing system
- Foam injectorCorrect
Why: A foam injector forces concentrate into the stream under pressure, and its metering system measures flow and pressure so the correct amount is added across a wide range of conditions, which is why it is typically installed on special foam apparatus. Both eductor types work the opposite way, using the pressure drop created as water speeds through a restriction to draw concentrate in by suction rather than pushing it in under pressure. A bypass eductor is simply a permanently mounted eductor that can pass either water or foam, so it shares that suction principle. Batch mixing is not a proportioner at all; it is concentrate poured straight into the booster tank, with no device metering anything. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Advanced Fire Suppression, p. 873.
Question 3
Fluoroprotein foam is built from the same base materials as protein foam, with fluorochemical surfactants added. What practical difference does that additive package make on a hydrocarbon fire?
- It allows the concentrate to be proportioned at 1 percent rather than 3 or 6 percent.
- It produces a fast-spreading film, where protein foam tends to spread slowly.Correct
- It makes the finished foam safe to apply onto energized electrical equipment.
- It removes any need for an air-aspirating nozzle at the point of discharge.
Why: The fluorochemical surfactants let fluoroprotein foam produce a rapidly spreading film over the fuel, which is why it is used for hydrocarbon vapor suppression and on deep-seated fuel fires, while plain protein foam tends to creep slowly across the burning surface. The additives change how the blanket travels and seals, not the proportioning percentage, which stays in the usual Class B range set at the metering device. No firefighting foam is an electrical agent, since the finished product is mostly water and will conduct. Nozzle selection still matters because the quality of the finished blanket depends on how air is introduced into the foam solution. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Advanced Fire Suppression, p. 871.
Question 4
While conducting a preincident survey of a large manufacturing building, a company applies its department's approved calculation method using the building's size, construction, contents, and exposures. What is the company calculating?
- The water flow rate needed to fight a fire involving the entire buildingCorrect
- The temperature rating required for the building's automatic sprinkler heads
- The service test pressure required for the department's supply hose
- The number of exits the occupancy is required by code to provide
Why: Required fire flow, expressed in gallons or liters per minute, is figured during the survey so the plan can identify a water supply capable of delivering it, and it is derived from exactly those inputs: building size, construction, contents, and exposures. Sprinkler head temperature ratings are set by the system designer according to the ambient conditions of the space. Hose service test pressures come from the hose service testing standard, not from a building survey. Required exit counts are a building and life safety code determination. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1024.
Question 5
A fire investigator has tested several hypotheses for a fire's cause. One hypothesis has the highest level of certainty among those tested, but that certainty is calculated at only 40%. How should this fire's cause be classified?
- As the probable cause, since it is the best hypothesis available
- As a possible cause, since no hypothesis reached the 50% certainty threshold required for a probable causeCorrect
- As arson, since the cause cannot be fully confirmed
- As suspicious, pending further investigation
Why: The textbook specifies that a hypothesis must reach at least 50% certainty to be classified as the official probable cause; a hypothesis below that threshold, even if it is the best one available, is classified only as a possible cause (and if no hypothesis reaches 50%, the fire is classified as undetermined). Labeling the fire "arson" is not supported merely because certainty is low, and the textbook explicitly states that a fire should never be classified as "suspicious" under any circumstances. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire Origin and Cause, p. 1045.
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Question 6
Because most fire departments cannot create a full preincident plan for every property in their jurisdiction, they instead prioritize properties that are particularly large or that present unusual risk to the public or to fire fighters. What term does the textbook use for these prioritized properties?
- Target hazardsCorrect
- Special-use occupancies
- Protected premises
- Exposure properties
Why: The textbook uses the term "target hazards" for properties — such as high-rise buildings, hospitals, nursing homes, schools, and large public-assembly or industrial occupancies — that are identified for preincident planning because of their size or the unusual risk they present. "Protected premises" instead refers to a category of local (non-transmitting) fire alarm system, and "exposure property" refers to a building or item that could be endangered by a fire in another structure, not the prioritization concept described here. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1015.
Question 7
As part of an E.D.I.T.H. presentation, why should residents be taught to keep bedroom doors closed during sleeping hours?
- It prevents smoke, heat, and flames from reaching the bedroomCorrect
- It reduces the home's heating and cooling costs
- It is required for NFPA 72 alarm compliance
- It keeps household pets from waking sleeping occupants
Why: The text explains that keeping bedroom doors closed during sleeping hours prevents smoke, heat, and flames from reaching bedrooms, buying occupants more time to escape. Energy costs, alarm code compliance, and pet behavior are not the reasons given in the text for this recommendation. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1004.
Question 8
The textbook contrasts two management styles used by fire departments. Which style does it describe as remaining the norm during actual emergency scene operations, even as departments increasingly use a more participative model for routine, day-to-day work?
- A paramilitary chain of command in which senior officers give orders that lower ranks carry out without questionCorrect
- A fully democratic model in which the crew votes on tactics before acting
- A matrix structure in which each fire fighter reports to several co-equal supervisors
- An informal model with no fixed chain of command, relying on radio consensus
Why: The textbook states that the fire service has long operated under a paramilitary chain-of-command concept, in which senior officers give orders that lower ranks carry out without question, and that this strict adherence to orders remains the norm for emergency operations even though many departments now use a more participative model for routine, daily work. A democratic voting model, a matrix of co-equal supervisors, or an informal consensus approach would each undermine the unity of command the ICS depends on and are not described in the text. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 848.
Question 9
Which finding during a preincident survey is an example of a fire-spread feature that must be documented specifically because it cannot be seen from outside the building?
- A single attic space running above several separate occupanciesCorrect
- A rear fire escape that serves the upper two floors of the building
- A rooftop heating and air conditioning unit on the center of the roof
- A fire department connection located on the alley side of the building
Why: Concealed avenues of fire travel such as a shared attic over several tenant spaces, unprotected openings between floors, or overhead passageways between buildings are the features most likely to surprise an incident commander, precisely because nothing on the exterior reveals them. The survey is the opportunity to find and record them. A fire escape, a rooftop mechanical unit, and a fire department connection are all visible from the street during a normal walk-around and do not depend on interior access to discover. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1019.
Question 10
A portable in-line foam eductor is typically sized to match which attack line hose diameters?
- 1 in. (25 mm) or 1¼ in. (32 mm)
- 1½ in. (38 mm) or 1¾ in. (45 mm)Correct
- 2½ in. (65 mm) or 3 in. (77 mm)
- 4 in. (100 mm) or 5 in. (125 mm) supply line
Why: The portable in-line eductor, the most common type used in the fire service, is sized to work with a 1½-in. (38-mm) or 1¾-in. (45-mm) attack line, matching the smaller handline diameters typically used for interior and exterior foam application. Larger supply-line diameters are not the sizes this device is built to match. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Advanced Fire Suppression, p. 874.
Question 11
An incident commander radios, 'Stop the fire from extending into Exposure D.' A company officer then orders a trench cut ahead of the fire with hose lines on the top floor to accomplish that objective. Under the fire-ground distinction taught for these terms, what is the trench-cut order an example of?
- A strategy
- A tacticCorrect
- A task
- An incident priority
Why: Strategy is the overall, big-picture objective, such as stopping fire extension into an exposure. Tactics are the steps taken to achieve that strategic objective, such as ordering a trench cut with hose lines to get ahead of the fire. Tasks are the specific individual assignments, such as directing a particular ladder company to cut the roof, that carry out the tactic. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 830.
Question 12
An early-suppression fast-response (ESFR) sprinkler head, which has an improved heat collector and a larger orifice than a standard head, is most likely to be installed in which type of occupancy?
- A single-family residence
- A large warehouse or distribution facilityCorrect
- A hospital operating room
- A records-storage vault for irreplaceable documents
Why: ESFR sprinkler heads are designed for large warehouses and distribution facilities, where rapid, high-volume water discharge is needed to control fires involving large storage arrays before they can grow out of control; they discharge about four to five times the water of a standard head. A single-family residence would use a smaller residential head, and areas with sensitive contents (an operating room or a document vault) are more likely to use a special hazard suppression system that avoids or minimizes water, not an ESFR head. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire Detection, Suppression, and Smoke Control Systems, p. 973.
Question 13
Within the RECEO-VS framework, the ventilation and salvage objectives are described as contributing mainly to which of the three incident priorities?
- Life safety
- Property conservationCorrect
- Incident stabilization
- Resource management
Why: Ventilation and salvage are both grouped under the third incident priority because removing heat, smoke, and combustion products and then covering or moving contents are aimed at limiting damage to the structure and its contents. Life safety is served by rescue, the first objective in the acronym. Incident stabilization is served by exposure protection and confinement, the objectives that keep the fire from growing. Resource management is a function of the incident command system, not one of the three incident priorities at all. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 845.
Question 14
The mnemonic FAILURE is used to describe common reasons rescuers fail or become victims themselves at a technical rescue incident. What does the "U" in FAILURE stand for?
- Unclear radio communications
- Underestimating the logistics of the incidentCorrect
- Unsafe PPE selection
- Unfamiliarity with mutual aid agreements
Why: In the FAILURE acronym, "U" stands for "Underestimating the logistics of the incident" — failing to anticipate the amount of personnel, equipment, and time a technical rescue will actually require. The other options are plausible-sounding rescue problems, but none of them is the term the textbook assigns to the letter U in this specific mnemonic. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Assisting Special Rescue Teams, p. 921.
Question 15
According to NFPA statistics cited in the textbook, approximately how much does the combination of working smoke alarms AND residential fire sprinklers reduce the risk of death in a home fire, compared to having neither?
- About 25%
- About 50%
- About 80%Correct
- About 95%
Why: The textbook cites NFPA (2018) statistics indicating that the combination of working smoke alarms and residential fire sprinklers can reduce the risk of fire death by approximately 80%, which is the basis for the push to have both installed together in new residential construction. The other percentages do not match the figure attributed to NFPA in the text. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1006.
Question 16
According to the safety guidance for high-pressure rescue-lift air bags, how many air bags may safely be stacked on top of one another?
- No more than twoCorrect
- No more than four
- As many as needed to reach the required lift height
- Stacking is never permitted under any circumstances
Why: The safety guidance is explicit that high-pressure rescue-lift air bags should never be stacked more than two units high, since stacking beyond that height creates an unstable lift that is prone to shifting or toppling. Stacking as many as needed to reach a given height ignores this stated limit, and the guidance does not prohibit stacking outright, only limits it to two. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Vehicle Rescue and Extrication, p. 901.
Question 17
Which statement correctly distinguishes the level of supervision under which a Fire Fighter I and a Fire Fighter II are each expected to perform?
- Fire Fighter I operates under general supervision, while Fire Fighter II operates under direct supervision.
- Fire Fighter I operates under direct supervision, while Fire Fighter II operates under general supervision.Correct
- Both certification levels always operate under direct supervision.
- Both certification levels always operate under general supervision.
Why: A Fire Fighter I is newly trained and performs fundamental tasks while a supervisor closely directs the work step by step. A Fire Fighter II has additional training and experience, so a supervisor can assign a task and expect it to be carried out correctly with only general oversight rather than constant direction. Reversing the two levels, or claiming both always work the same way, erases the distinction the certification progression is built on. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 817.
Question 18
Fire fighters arrive at a large commercial building whose fire alarm control unit sits in a mechanical room well inside the structure. A separate panel mounted just inside the main entrance displays which device activated and where. What is the purpose of that entrance panel?
- It silences the building's audible notification appliances so that crews can investigate the alarm quietly.
- It supplies the entire alarm system with backup power whenever the primary electrical circuit fails.
- It shows arriving crews the type and location of the activated device without finding the control unit.Correct
- It resets the activated initiating devices from the doorway once the alarm condition has cleared.
Why: A remote annunciator is placed near a main entrance precisely so that a first-arriving company can read the type and location of the activated device immediately, instead of hunting through the building for the fire alarm control unit. Silencing is a control-unit function and should not happen at all until the source of the alarm has been found and checked. Backup power is supplied by the system's secondary power source, normally batteries or a generator, not by an information display. Resetting initiating devices is done at the device or at the control unit, and many devices such as manual pull stations require a tool at the device itself. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire Detection, Suppression, and Smoke Control Systems, p. 968.
Question 19
Which NFPA standard covers preincident planning, as referenced in the text?
- NFPA 1620Correct
- NFPA 1720
- NFPA 1710
- NFPA 1250
Why: The text directs readers to NFPA 1620, Standard for Pre-incident Planning, for more information on preincident plan content and format. NFPA 1710 and 1720 address staffing and deployment for career and volunteer departments, and NFPA 1250 is not a preincident planning standard, so none of those substitute for NFPA 1620 here. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1015.
Question 20
In the RECEO-VS mnemonic used to guide fire-ground strategic objectives, what does the letter 'C' stand for?
- Communications
- ConfinementCorrect
- Coordination
- Control of utilities
Why: RECEO-VS spells out Rescue, Exposure protection, Confinement, Extinguishment, Overhaul, Ventilation, and Salvage, with Confinement referring to keeping the fire from spreading beyond its current area. Communications, coordination, and utility control are all important fire-ground activities, but none of them is the concept the 'C' in this particular mnemonic represents. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 843.
Question 21
A fire fighter is preparing a preincident plan for an older building whose interior was extensively remodeled several years ago and is now fully finished. Why is the completed remodeling itself treated as a hazard worth documenting?
- Remodeling can defeat original fire-resistant separations and add concealed void spacesCorrect
- Remodeling automatically reclassifies the building as Type V wood frame construction
- Remodeling permanently disables any sprinkler system installed in the original building
- Remodeling always lowers the fire load by replacing older combustible building contents
Why: Renovation work routinely leaves hazards that are invisible in the finished building, such as a second ceiling hung below the original one with a void between them, a concrete topping poured over a wood floor, or new openings cut through walls and floors that were originally fire resistant. Documenting the remodeling tells responders that the building no longer behaves the way its original construction suggests. Remodeling does not change a building's NFPA 220 construction type classification, does not by itself disable a sprinkler system, and does not reliably reduce fire load. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1021.
Question 22
During the “Drop” step of Stop, Drop, and Roll, why should the person cover his or her face with the hands?
- To protect the airway and the eyesCorrect
- To muffle calls for help so as not to alarm others
- To keep makeup or facial coverings from smearing
- To signal other occupants that help is needed
Why: The text instructs that during the Drop step, the person should cover the face with the hands to help protect the airway and the eyes from heat and flame. The other options describe unrelated or counterproductive purposes that are not the stated rationale for this hand position. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire and Life Safety Initiatives, p. 1003.
Question 23
The ICS organization chart is built around five major functional components. Which list correctly names all five?
- Command, operations, planning, logistics, finance/administrationCorrect
- Command, suppression, rescue, EMS, hazardous materials
- Command, staging, branches, divisions, groups
- Command, safety, liaison, public information, operations
Why: The ICS organization is described as having five major components: command, operations, planning, logistics, and finance/administration, with the latter four often called the general staff sections once activated. The other lists mix in things that are either types of tactical assignments (suppression, rescue, EMS) or subordinate organizational units (staging, branches, divisions, groups) rather than the five top-level ICS components, or substitute command-staff positions (safety, liaison, PIO) for two of the general staff functions. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 821.
Question 24
When transmitting a mayday using the LUNAR reporting format, what does the letter 'A' represent?
- Assignment location within the ICS organization chart
- Amount of air remaining in the cylinder, or the fire fighter's last assignmentCorrect
- Available resources at the incident command post
- Alarm status of the fire fighter's PASS device
Why: In the LUNAR mayday format, 'A' stands for Air, meaning the amount of air remaining in the fire fighter's cylinder, or alternatively Assignment, meaning where the fire fighter was last operating. This is distinct from the resource-request meaning carried by the final letter, 'R' for Resources, and from unrelated concepts such as ICS assignment charts or PASS device status. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Establishing and Transferring Command, p. 834.
Question 25
A slow, smoldering fire (such as a cigarette smoldering in upholstered furniture) that produces a large quantity of visible smoke is most likely to be detected quickly by which type of automatic initiating device?
- An ionization smoke detector
- A photoelectric smoke detectorCorrect
- A fixed-temperature heat detector
- A rate-of-rise heat detector
Why: A photoelectric smoke detector uses a light beam and photocell that respond quickly to the larger, visible smoke particles typical of a slow-burning, smoldering fire, such as a cigarette in a couch. An ionization detector instead reacts faster to fast-burning fires that produce smaller, less visible particles, making it comparatively slower to respond to a smoldering fire. Both heat detector types react to a rise in temperature, not smoke, and are inherently slower to respond to an incipient smoldering fire than any smoke detector. Primary reference: Fundamentals of Fire Fighter Skills and Hazardous Materials Response (Jones & Bartlett, 4th Edition), Fire Detection, Suppression, and Smoke Control Systems, p. 963.

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