OSHA #511 Occupational Safety and Health Standards for General Industry course

Which type of guarding device can move to allow the feeding of stock while protecting the operator?

1. Fixed guard

2. Interlocking guard

3. Self-adjusting guard

4. Removable guard

The correct answer is: Self-adjusting guard

The self-adjusting guard is designed to provide both safety and functionality. It automatically adjusts to the size and shape of the material being processed, enabling operators to feed stock into a machine while maintaining a protective barrier around hazardous areas. This type of guard moves in response to the approach of materials, thus ensuring that the operator is safeguarded from potential injuries without hampering the workflow. In contrast, fixed guards do not move and provide constant protection by enclosing the hazard, which may hinder the operator's ability to feed stock efficiently. Interlocking guards are designed to stop machine operation when the guard is opened or removed, which can interrupt the workflow and may not facilitate the feeding of stock. Removable guards must be taken off completely to allow for access, which poses a greater risk because the operator may forget to replace the guard or may be exposed to hazards during the removal process. Therefore, the self-adjusting guard stands out as a solution that balances operational needs with safety requirements effectively.