Which of the following are potential hazards associated with CNC machining?

The selection highlighting mechanical injury and exposure to coolants accurately identifies significant hazards associated with CNC machining. Mechanical injury can arise from moving parts of the CNC machine, such as rotating spindles and feed mechanisms, which pose risks of entanglement, cuts, or crushing if proper safety measures are not followed. Additionally, exposure to coolants is a crucial concern, as these substances, used to reduce heat and friction during machining, can cause skin irritation or allergic reactions. Proper training in safety protocols and the use of personal protective equipment (PPE) are essential to mitigate these risks in a CNC machining environment.

The other options do not capture the primary hazards relevant to CNC machining. Sunlight exposure and high temperatures, while potentially hazardous in other contexts, are not directly related to the CNC machining processes. Focusing on toxic materials only overlooks other critical risks present in CNC operations. Lastly, while static electricity can be a concern in some manufacturing environments, it is not a primary hazard associated with CNC machining.