Mixed Deck — All Firefighter Topics Flashcards

Proper ventilation during interior firefighting primarily helps by:

Answer: Releasing heat and smoke to improve conditions

Coordinated ventilation releases heat and smoke, improving visibility and survivability when timed with suppression.

A ladder must be raised near overhead electrical wires. The sound judgement is to:

Answer: Position and raise the ladder well clear of the wires, maintaining safe clearance

Keeping ladders clear of overhead wires prevents electrocution from accidental contact.

What is the primary objective of a 'bond-tracking tag'?

Answer: To account for each firefighter that is on scene

A 'bond-tracking tag' or similar accountability system is a fundamental safety protocol in firefighting. Its primary purpose is to maintain an accurate, real-time record of every firefighter present at an incident. This allows incident command to know who is on scene and quickly account for all personnel, which is critical for safety and emergency response.

Which type of control valve uses a circular disk inside a flat plate on top of the vale housing?

Answer: PIVA

A Post Indicator Valve Assembly (PIVA) is a type of control valve commonly used in fire protection systems, such as those for sprinkler or standpipe systems. It features a circular disk inside a flat plate on top of the valve housing, which visually indicates whether the valve is in the open or closed position. This clear indicator allows firefighters to quickly assess the status of the water supply.

A 'butt' or 'heel' on a ground ladder refers to what?

Answer: The bottom end that rests on the ground

The butt or heel is the bottom end of the ladder that contacts the ground and bears weight.

What is a key reason firefighters wear protective footwear with steel or composite toe and midsole?

Answer: Protection from puncture and crushing hazards

Reinforced toe and midsole protect against punctures from nails and crushing from debris.

In swiftwater rescue, what is the preferred order of rescue priority (lowest risk first)?

Answer: Reach, throw, row, go

The progression reach-throw-row-go moves from lowest to highest rescuer risk.

What does the term 'strategies' refer to in firefighting?

Answer: The overall plan to achieve the objectives

In firefighting, 'strategies' refer to the broad, overarching plans or approaches developed to achieve the primary objectives, such as saving lives and protecting property. They define the 'what' and 'why' of the operation, guiding the overall deployment of resources and personnel. Tactics, in contrast, are the specific actions taken to implement these strategies.

Which simple machine is a doorknob an example of?

Answer: Wheel and axle

A doorknob turns a small axle using a larger wheel, a classic wheel-and-axle.

Which carry typically requires the fewest firefighters for a short ground ladder?

Answer: One-firefighter low-shoulder carry

A short ladder can be moved with a one-firefighter low-shoulder carry.

A pump moves 300 gallons in 4 minutes. At this rate, how many gallons does it move in 10 minutes?

Answer: 750

300 / 4 = 75 gpm, and 75 x 10 = 750 gallons.

A triangle with sides measuring 8 inches, 12 inches, and 15 inches has a perimeter of

Answer: 35 inches

The perimeter of any polygon, including a triangle, is the total length of all its sides. To find the perimeter, you simply add the lengths of the three given sides together. In this case, adding 8 inches, 12 inches, and 15 inches results in a total perimeter of 35 inches.

When performing a two-bag lift with high-pressure air lifting bags to raise a heavy object, what is the correct procedure for stacking and inflation?

Answer: Place the smaller bag on top of the larger bag and inflate the bottom bag first.

For stability, the larger bag must always be on the bottom to provide a wide, stable base. The proper inflation sequence is to inflate the bottom bag first to secure the initial lift, then inflate the top bag to achieve additional height. This bottom-to-top inflation sequence maintains control and stability throughout the lift.

In a pulley system with two supporting rope segments, lifting a 100 lb load ideally requires how much input force (ignoring friction)?

Answer: 50 lb

Two supporting rope segments halve the required force, so 100 lb needs about 50 lb of input.

How far should a ladder extend above a roof line to provide a safe egress point?

Answer: About 5 rungs (3-5 feet)

Extending about 3-5 feet (roughly five rungs) above the roof gives a stable handhold for climbing on and off.

Which class of fire involves energized electrical equipment?

Answer: Class C

Class C fires involve energized electrical equipment and require a non-conductive extinguishing agent.

Why is establishing a water supply early important during initial operations?

Answer: It ensures sustained flow before the booster tank runs out

Securing a hydrant or other source early prevents running out of water from the limited onboard tank.

What is the purpose of a 'safety belay' when raising a ladder?

Answer: To prevent the fly section from sliding down unexpectedly

A belay or guard secures the halyard so the fly section cannot drop after being extended.

A clean agent (such as FM-200 or inert gas) suppression system is preferred in which location?

Answer: Data centers and electronic equipment rooms

Clean agents suppress fire without leaving residue or damaging sensitive electronics.

Three gears are arranged in a line, all meshed together. If gear 1 turns clockwise, gear 3 turns which way?

Answer: Clockwise

Direction alternates each mesh, so gears 1 and 3 turn the same way (clockwise).