Final answer:
A walk-through survey is indeed an effective method for Kim Sung and a safety expert to identify poor housekeeping hazards in the hospital, allowing real-time assessments and communication.
Step-by-step explanation:
True, a walk-through survey would be an effective way for Kim Sung, as a member of the Joint Health and Safety Committee at her workplace, and an outside safety expert to identify hazards from poor housekeeping throughout the hospital. Walk-through surveys are practical approaches to visually and physically assess the work environment for potential safety risks and noncompliance with housekeeping standards. This method allows for real-time identification of issues and direct communication with staff about work practices that could be improved to ensure a safe environment.