Which device would typically be used to provide a visual indication of hazards in machinery?

A visual indication of hazards in machinery is crucial for ensuring safety in the workplace. An awareness barrier is specifically designed to alert workers to the presence of hazards by providing a visible signal or marking around potentially dangerous areas. This can include brightly colored tape, signs, or a physical barrier that draws attention and encourages caution.

The purpose of an awareness barrier is to prevent accidents by making workers aware of the proximity to danger zones within machinery. In contexts where machinery is in operation, clear visual cues are vital for maintaining a safe environment, allowing workers to recognize hazardous areas before attempting to work or enter those spaces.

The other options, while related to machine safety, do not serve the primary function of visually indicating hazards in the same direct manner. For instance, jig guards are designed to physically protect workers from moving parts but do not provide a visual warning. Adjustable members might refer to parts of the machinery that can be modified for different operations, but again, they don't offer a visual cue about hazards. An overrun switch is a safety device that can stop machinery from running out of control but does not provide a visual indication of hazards either.