Final answer:
All exposed moving parts must have safety guards in place to avoid accidental contact. Safety guards help prevent injuries by acting as a barrier, which is a crucial aspect of workplace and laboratory safety precautions.
Step-by-step explanation:
All exposed moving parts must have safety guards in place to prevent inadvertent contact during operation. These safety guards are essential as they provide a physical barrier between the operator and the moving parts, helping to prevent accidents and injuries.
It's important to know where specific safety equipment is located in a laboratory or workplace, such as fire extinguishers and eyewash stations.
In addition to safety guards, proper lab safety includes avoiding flashy clothing, following protocol for required protective gear, and maintaining personal hygiene.
Understanding safety systems and devices such as circuit breakers, fuses, the three-wire system, ground fault circuit interrupters (GFCIs), and isolation transformers is crucial for electrical safety to prevent both thermal and shock hazards.