Question

When attacking a passenger vehicle fire, what are the requirements:

a. a -inch (65 mm) or larger hoseline is required.
b. firefighters should extinguish fire in the engine compartment first.
c. a backup hoseline should be deployed as quickly as possible.
d. firefighters should approach from downhill and downwind.

Answer 1

When attacking a passenger vehicle fire, firefighters require a 2½-inch hoseline or larger, should extinguish engine fires first, deploy a backup line quickly, and approach from downhill and downwind for safety and effectiveness.

Step-by-step explanation:

Requirements for Attacking a Passenger Vehicle Fire

When attacking a passenger vehicle fire, there are several tactical considerations and safety requirements that need to be followed for effective and safe suppression:

• A 2½-inch (65 mm) or larger hoseline is typically required to ensure there's sufficient water flow to extinguish the fire.
• Firefighters are taught to extinguish the fire in the engine compartment first, as this is often the source of the vehicle fire.
• Deploying a backup hoseline should be done as quickly as possible to provide additional suppression capabilities and for firefighter safety.
• Firefighters should indeed approach from downhill and downwind to minimize exposure to smoke, heat, and potential fire spread.

Regarding the physics problems provided, they relate to the flow rates and pressures within a fire hose, which are key concepts in understanding the behavior of fluids in firefighting operations. These are practical applications of the principles of physics to real-world scenarios, such as firefighting.