Final answer:
The correct answer is b) Power tools. It is essential to wear appropriate PPE when using power tools due to the hazardous fine particles they produce during grinding operations.
Step-by-step explanation:
Always wear appropriate PPE (Personal Protective Equipment) when using power tools because of the fine particles they create while grinding. The correct answer to the question is: b) Power tools. These tools are designed to cut, shape, and grind materials, and during these processes, they can generate dust, metal filings, sparks, and other debris which can be hazardous to the eyes, respiratory system, and skin.
It is crucial to wear proper safety gear, including safety goggles, dust masks, ear protection, and gloves, to protect oneself from these potential hazards. Not only is PPE essential for personal safety, but it is also often mandated by workplace safety regulations.