If conveyor belts are not visible, what must be on them to warn persons the belt will be starting?

If conveyor belts are not visible, what must be on them to warn persons the belt will be starting?

• A. Audible warning devices
• B. Visual warning labels
• C. Stop switches
• D. Lights

Answer: (A)

When a hazard cannot be seen, you need an alert that can be heard even when the belt isn’t in view. Audible warning devices on conveyors provide a clear, immediate warning that the belt is about to start, giving workers time to move away and stay clear of moving parts. Visual warnings or labels aren’t as reliable in a noisy mine or when the belt isn’t visible, and a stop switch is meant for stopping the equipment, not signaling an imminent start. Lights can help, but audio alerts ensure notice regardless of visibility or lighting conditions.

When a hazard cannot be seen, you need an alert that can be heard even when the belt isn’t in view. Audible warning devices on conveyors provide a clear, immediate warning that the belt is about to start, giving workers time to move away and stay clear of moving parts. Visual warnings or labels aren’t as reliable in a noisy mine or when the belt isn’t visible, and a stop switch is meant for stopping the equipment, not signaling an imminent start. Lights can help, but audio alerts ensure notice regardless of visibility or lighting conditions.