What type of warning device is required on conveyors when visibility is poor to warn of startup?

What type of warning device is required on conveyors when visibility is poor to warn of startup?

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

Answer: (A)

In low-visibility conditions, a warning that can be heard over the work area is essential. Audible warning devices ensure workers hear that the conveyor is about to start, giving them time to move away from moving parts or hazards. Visual warnings can be ineffective when visibility is poor, and stop switches only address stopping the conveyor once it’s already running. Guard rails provide physical protection but don’t alert workers to startup. So, an audible warning device is the appropriate choice to alert personnel of impending startup in poor visibility.

In low-visibility conditions, a warning that can be heard over the work area is essential. Audible warning devices ensure workers hear that the conveyor is about to start, giving them time to move away from moving parts or hazards. Visual warnings can be ineffective when visibility is poor, and stop switches only address stopping the conveyor once it’s already running. Guard rails provide physical protection but don’t alert workers to startup. So, an audible warning device is the appropriate choice to alert personnel of impending startup in poor visibility.