The fast attack mode should be brief lasting how long?

• A. Several hours
• B. Until the incident is under control
• C. Until the fire is completely extinguished
• D. Brief, lasting only a few minutes

Answer: (D)

Fast attack mode is meant to be a quick, aggressive interior push aimed at rapidly gaining control, locating occupants if present, and beginning to cool the fire. It should last only a few minutes so crews can assess conditions and intervene while the risk of deteriorating conditions, like flashover or collapse, remains low. If a longer interior effort is needed, operations should transition to a different plan rather than extending the fast attack beyond that brief window. Longer durations—hours, or continuing until the fire is completely extinguished or under control—increase danger without guaranteeing additional early-fire control.