Which of the following actions should NOT be taken when evaluating a Type B fire's aftermath?

The correct choice is based on the critical consideration that even in the absence of visible smoke, a fire may not be completely extinguished. Assuming that a fire is fully out without further verification can lead to dangerous situations, as there may still be residual heat, smoldering materials, or hidden flames that could reignite. A thorough evaluation is necessary to ensure that all potential fire sources have been addressed effectively.

In contrast, checking for heat in the area, ensuring the flames are completely out, and being cautious of potential hazards are all prudent actions that contribute to safety during fire aftermath evaluations. Each of these actions helps identify lingering threats and prevent further incidents, reinforcing the need for a comprehensive assessment rather than relying solely on visible signs, such as the absence of smoke.