Which of the following safety precautions do not apply to all hand tools while in use?

The correct choice highlights that knowing the weight of a tool is not a safety precaution that applies universally across all hand tools while they are in use. While it is generally good practice to be aware of the weight of a tool to avoid fatigue or strain, this specific precaution does not apply to safety measures during the actual use of hand tools.

In contrast, proper storage after use is a crucial safety precaution as it helps prevent accidents and ensures that tools remain in good condition. Using safety goggles is essential when using certain tools that can produce flying debris, which makes eye protection critical in various scenarios. Regular checks for damage also serve as an important preventative measure to ensure that tools are in safe, working condition before every use. These precautions are fundamental to workplace safety and are relevant to all hand tools, emphasizing their importance over the specific aspect of knowing a tool's weight during use.