What hazard is present when a worker stands on a wet floor and touches a metal shelf with a bare wire?

The situation described presents a significant risk of potential electric shock due to the combination of wet conditions and contact with a metal shelf that has a bare wire. Water is a good conductor of electricity, which increases the likelihood of electric current traveling through the body if the worker touches the metal shelf while standing on a wet floor.

When a person in this scenario touches the metal shelf, the moisture on the floor creates a pathway for the electrical current to reach the person, leading to electric shock. This hazard is particularly pronounced in healthcare settings, where electrical equipment is often used in conjunction with wet environments. Awareness of this risk is critical for ensuring workplace safety and preventing accidents.

Other options such as minor slipping hazards and reduced efficiency do not adequately address the severe risks posed by electric shock in this situation. Lastly, asserting that no hazard is present is also incorrect, as the conditions clearly indicate a dangerous situation.