If smoke is present but occupants can be evacuated through the corridor, it is considered __.

The scenario described indicates that smoke is present, which can create a dangerous environment for occupants. However, the fact that occupants can still be evacuated through the corridor suggests that there is a viable path for escape, despite the smoke. This situation is classified as "workable" because it provides a feasible solution: the ability to evacuate occupants safely.

In emergency response situations, establishing whether a condition is workable is critical in determining the best course of action. A workable condition implies that while challenges exist—like the presence of smoke—there are still potential methods for effective evacuation and safety management.

The distinction lies in the assessment of risk and the availability of options. If conditions were categorized differently, such as "safe," it would imply that there are no hazards present. "Not workable" suggests a complete lack of practical options for escape, which does not accurately reflect the scenario where evacuation is still possible. Similarly, labeling it as "hazardous" emphasizes danger without recognizing the potential for safe evacuation. Hence, describing the situation as workable captures the complexity of the environment where action can be taken despite existing risks.