Construction Health and Safety Technician (CHST) 2025 – 400 Free Practice Questions to Pass the Exam

A "tag out" procedure is specifically designed for situations where energy-isolation devices cannot be locked out, which is a critical safety measure in various industries. This procedure involves placing a tag on the energy-isolating device to indicate that the equipment must not be operated until the tag is removed. Tags serve as a visual warning and communicate to others that maintenance or repair work is being conducted and that the equipment is not safe to use.

Utilizing a "tag out" procedure is essential when equipment cannot be secured with a lockout device because an alternative means of communication and enforcement is necessary to ensure the safety of personnel working on or near the equipment. It helps prevent accidental energization and protects employees from potential harm while they are performing maintenance tasks or servicing machinery.

In contrast, other scenarios, such as when equipment is not in use, performing routine maintenance, or during safety drills, traditionally do not require a "tag out" procedure as those situations typically do not involve the same level of risk associated with potential energization of equipment. Thus, the specific need for a "tag out" procedure arises in the context of addressing situations where locking out an energy source isn’t feasible, making option B the most appropriate choice.