BOF Quiz Questions Mod B

Bolt Cutter

A barbed wired fence should be cut with a (an):

Movement of smoke out of the compartment.

Air flow is the movement of air towards burning fuel and:

Which of the following MAYDAY situations is MOST common when a structure has been on fire for an extended period of time or while it is under construction?

Collapse/trapped

For fresh air to enter the structure.

For vertical ventilation to be effective, a horizontal inlet opening at or below the level of the fire is needed to provide a flow path for:

Adding additional parallel hoselines

Friction loss may be overcome by:

Designed for this purpose.

HVAC equipment in windowless buildings may cause spread of smoke, heat, and fire unless specifically:

preventing the ladder from moving away from the building.

Heeling and tying-in are two methods of:

Three

How many firefighters should be used to raise ladders 35 feet (11m) or longer?

Tagged for repair

If defects are found during service testing, hose should be:

Wood

Ladders constructed of ______ retain strength when exposed to heat and have better resistance to bouncing when climbed.

Horizontal Ventilation

Mechanical ventilation methods using fans, blowers, and smoke ejectors can be applied to horizontal and vertical ventilation, but is most often used for:

mixing different types of foam concentrates in the same tank.

Poor-quality foam may result from:

Blowers

Positive pressure ventilation (PPV) is applied to a building at ground level through the use of one or more:

Lightweight or engineered trusses

Roofs that may fail early in a fire and are extremely dangerous to work under are roofs supported by:

True

T/F A hose clamp should be applied approximately 5 feet (1.5m) from the coupling on the supply side.

False

T/F A trench cut is used to create a fire break that increases the spread of fire in a common attic structures or large structures.

False

T/F After a MAYDAY transmission, the rescue intervention crew or team (RIC/RIT) should first gather needed equipment.

False

T/F After locating the downed firefighter, the first priority of the rescue intervention crew or team (RIC/RIT) is usually to stabilize injuries.

True

T/F Alcohol-resistant foams are specially developed for polar solvents and ethanol-based fuels.

True

T/F An easy way to determine the proper distance between the ladder butt and the building is to divide the working length of the ladder by four.

True

T/F Before entry into an immediately dangerous to life and health area, firefighters should be aware of alternate means of egress.

True

T/F Cutting around a lock is another way to open a resisting door.

True

T/F During the primary search, firefighters check both known and likely locations of victims and fire conditions.

True

T/F Escape is the best option when a firefighter has a completely exhausted air supply.

True

T/F Fire hose should be serviced tested annually.

True

T/F Firefighters use knowledge of building floor plans to conduct effective structural searches.

False

T/F Gates should be pried or cut when forcing entry to cause less damage.

False

T/F Hose should be tested in lengths of 50 feet (15m) in length or shorter.

False

T/F Hose size refers to the external diameter of the hose

True

T/F If there is a possibility of extreme fire behavior, a firefighter should not attempt entry until coordinated fire control and ventilation is implemented.

False

T/F In a forward lay, the first coupling to come off the hose bed should be male.

False

T/F Interior pocket doors can be forced with the same technique used for sliding doors.

False

T/F Interior walls are more difficult to breach than exterior walls.

False

T/F Most occupants will need assistance when evacuating a structure.

True

T/F NFPA 1901 lists the minimum quantity of hose to be carried on a standard pumper or engine.

True

T/F No single forcible entry tool handles all situations.

True

T/F Nontraditional types of locks provide a higher level of security.

False

T/F Nozzles should be stored with the control valve bale in the open position.

True

T/F Restoring the HVAC system to operation after a fire is the responsibility of the building engineer or maintenance superintendent.

True

T/F Rotary control valves control both the water flow and the discharge pattern of the fire stream.

True

T/F Security barriers block escape routes for both firefighters and occupants.

True

T/F Smoke control systems usually have a system diagram in the same location as the control panel, indicating where the alarm originated.

True

T/F Tactical ventilation should only be performed when the fire attack hoselines and teams are in place and ready to advance towards the fire.

False

T/F The best entry point into a burning building is to force entry through windows.

True

T/F The halyard and pulleys are components of an extension ladder.

False

T/F The ladder tip is secured and the foot anchored only during training, when the ladder may be used for repeated exercises.

False

T/F The primary way water extinguishes fire is by excluding oxygen from the fuel (smothering).

False

T/F The pumping mechanism for hydraulic prying tools can only be powered.

True

T/F The two general types of tactical ventilation used for structure fires are horizontal and vertical.

False

T/F To climb a ladder smoothly, the right hand and foot move together, then the left hand and foot.

False

T/F To exit a building, turn in the same direction you entered a room.

True

T/F To prevent water hammer, valves, nozzles, and hydrants should be closed slowly.

False

T/F Ultimate responsibility for size-up rests with the first arriving officer on-scene.

True

T/F When advancing hose up and down a stairway, the hose should be uncharged when conditions allow.

True

T/F When service testing fire hose, necessary equipment includes a hose-testing machine and a hose-test gate valve.

Latent heat of vaporization

The energy required to change a liquid into a vapor is:

In-line foam eductor

The most common type of foam proportioner in use is the:

False

The triangle cut ventilation hole provides the least reliable information of conditions beneath the roof.

Slide Valve

The type of nozzle control valve that seats a moveable cylinder against a shaped cone to turn off the flow of water is the:

Leg

To prevent personal injuries, ladders should be lifted and lowered using which group of muscles?

One firefighter ever 10 feet (3m)

What is the maximum number of firefighters that can use a ladder without overloading?

Indicate the proper climbing angle

What is the purpose of the ladder positioning label?

Natural air flow

When conditions are appropriate, natural horizontal ventilation operations should work with existing atmospheric conditions, taking advantage of:

Minuteman Load

When deploying preconnected hoselines, which load should result in the hoseline deploying with fewer kinks and bends?

To better control nozzle reaction

When operating a handline, a firefighter should open the control valve slowly:

Minimum damage and proceed to maximum damage

When performing forcible entry to open a door begin with:

Remove the ladder from use until it can be service tested

Which is the BEST procedure to follow when an inspection reveals possible deterioration of components?

Positive-pressure ventilation (PPV)

Which mechanical ventilation method uses higher pressure inside a building to force smoke through openings to the lower-pressure area outside?

Water-aspirating nozzles

Which nozzles pump foam solution through the nozzle in a fine spray that mixes with air to form foam?

At least two ladders at remote locations from one another

Which of the following BEST describes means of escape required when personnel are working on a roof or upper story?

Sound the roof

Which of the following actions should firefighters do to determine the difference in feel of supported and unsupported areas of a roof?

Ladder belt, leg lock

Which of the following can safely secure a firefighter to the ladder while performing work?

Solid Stream

Which of the following fire stream patterns has the ability to reach areas other streams might not reach?

Handline Stream

Which of the following fire streams is supplied by 1½- to 3-inch (38 mm to 77 mm) hose, and discharges from 40 to 350 gpm (160 L/min to 1 400 L/min)?

Report damage to tools according to department procedures

Which of the following is MOST accurate about the care and maintenance of forcible entry tools?

Lay large-diameter hose flat on the ground before charging it

Which of the following is a procedure for service testing fire hose?

Ladder tip raised to just below sill

Which of the following is the BEST placement for a ladder intended to be used for rescue through a narrow window?

Get low to the floor

Which of the following is the BEST way to perform a quick visual survey of conditions while on the fire floor?

Avoid potential hazards

Which of the following is the most important survival technique for firefighters?

Strongbacks

Which of the following is the term used for two boards connected with long carriage bolts?

Valve Devices

Which of the following items allow the number of hoselines operating on the fire ground to be increased or decreased

Chain Saw

Which of the following makes faster, rougher cuts when breaching a floor?

Electronic keyless or digital locks

Which of the following may have a key pad, card reader, or fingerprint activated screen?

Maintain situational awareness

Which of the following should be done to prevent injury when using a saw?

Vehicles in the driveway

Which of the following situational awareness clues alert firefighters to the possibility a building may be occupied?

Foam works by forming a blanket of foam on the surface of burning fuels.

Which of the following statements about fire fighting foam is MOST accurate?

Water broken in to small droplets absorbs heat more rapidly

Which of the following statements about fire streams is MOST accurate?

Class B foams are effective on hydrocarbon fuels and polar solvents.

Which of the following statements about foam concentrates is MOST accurate?

Manufacturers' safety data sheets provide environmental impact information for specific foam concentrates.

Which of the following statements about foam hazards is MOST accurate?

Eduction uses pressure energy in the stream of water to induct foam concentrate into the fire stream.

Which of the following statements about foam proportioning is MOST accurate?

Fog-streams may be used to cool the hot fire gas layer

Which of the following statements about fog streams is MOST accurate?

Firefighters can easily pick up a number of folds and place on one shoulder to carry hose from the bed

Which of the following statements is an advantage of the accordion load?

Seek safe haven

Which of the following survival actions is BEST used in order to buy more time to escape?

Shelter-in-place

Which of the following victim removal methods is common in both hospitals and correctional facilities?

Triple Layer Load

Which preconnected hose load is designated to be pulled by one person and must be completely removed from the bed before deploying the nozzle end?

Bank-down method

Which technique for applying Class B foam is used primarily on fires contained in diked pools around storage tanks and fires involving spills around damaged or overturned transport vehicles?

Woven-Jacket Hose

Which type of fire hose requires the most care in cleaning?

Reverse Lay

Which type of hose lay is the most expedient if the apparatus must stay at the water source?

Fog

Which type of nozzle can be adjusted, resulting in different patterns?

Piercing

Which type of nozzle can be used to effectively control fires in concealed spaces?