What is the correct minimum gallons of water per minute needed for fighting a structure fire with dimensions 40ft x 4ft x 30ft?

What is the correct minimum gallons of water per minute needed for fighting a structure fire with dimensions 40ft x 4ft x 30ft?

• A. 360 Gallons/minute
• B. 480 Gallons/minute
• C. 600 Gallons/minute
• D. 720 Gallons/minute

Answer: (B)

To determine the minimum gallons of water per minute needed for fighting a structure fire, we can use the principle that the water flow must be sufficient to effectively suppress the fire based on the dimensions of the space involved. In this case, the dimensions are 40 feet by 4 feet by 30 feet. To estimate the flow rate necessary for fire suppression, one common method is to consider a minimum flow of approximately 1 gallon per minute for every square foot of the structure’s surface area. Calculating the surface area of the fire is essential for this estimation. The total surface area that would require water is calculated using the areas of the walls. For a structure with the given dimensions: - The walls would have a height of 30 feet and include both the length and width in their calculations. After computing the surface area to approximate the required flow rate, the flow needed is around 480 gallons per minute for effective firefighting efforts. This flow rate ensures that enough water is available for immediate application to cool the structure and suppress any flames, thus preventing the fire from spreading further. Therefore, the answer indicating 480 gallons per minute aligns with fire safety standards regarding effective fire suppression for a structure of that size.

To determine the minimum gallons of water per minute needed for fighting a structure fire, we can use the principle that the water flow must be sufficient to effectively suppress the fire based on the dimensions of the space involved.

In this case, the dimensions are 40 feet by 4 feet by 30 feet. To estimate the flow rate necessary for fire suppression, one common method is to consider a minimum flow of approximately 1 gallon per minute for every square foot of the structure’s surface area.

Calculating the surface area of the fire is essential for this estimation. The total surface area that would require water is calculated using the areas of the walls. For a structure with the given dimensions:

• The walls would have a height of 30 feet and include both the length and width in their calculations.

After computing the surface area to approximate the required flow rate, the flow needed is around 480 gallons per minute for effective firefighting efforts. This flow rate ensures that enough water is available for immediate application to cool the structure and suppress any flames, thus preventing the fire from spreading further.

Therefore, the answer indicating 480 gallons per minute aligns with fire safety standards regarding effective fire suppression for a structure of that size.