What is the Type 3 minimum pump flow (gpm)?

What is the Type 3 minimum pump flow (gpm)?

• A. 100
• B. 200
• C. 150
• D. 250

Answer: (C)

Minimum pump flow for a Type 3 engine represents the smallest sustained water output the engine must be able to deliver to effectively support common wildland suppression tasks. For Type 3 engines, the standard minimum is 150 gallons per minute. This value provides enough volume to feed typical handlines and nozzles while accounting for friction losses in standard hose lengths and basic elevation changes, without overloading the pump. A lower figure like 100 gpm would struggle to maintain usable nozzle pressures in many scenarios, while higher figures such as 200 or 250 gpm describe larger-pac­ing, not the minimum requirement.

Minimum pump flow for a Type 3 engine represents the smallest sustained water output the engine must be able to deliver to effectively support common wildland suppression tasks. For Type 3 engines, the standard minimum is 150 gallons per minute. This value provides enough volume to feed typical handlines and nozzles while accounting for friction losses in standard hose lengths and basic elevation changes, without overloading the pump. A lower figure like 100 gpm would struggle to maintain usable nozzle pressures in many scenarios, while higher figures such as 200 or 250 gpm describe larger-pac­ing, not the minimum requirement.