Final answer:
When using power tools near high-power electric circuits, always follow the safety guideline of working one-handed or keeping one hand in your pocket to prevent the passage of electrical current through the body.
Step-by-step explanation:
When using power tools, it is essential to adhere to specific safety measures to prevent accidents and injuries. According to safety guidelines, while working with high-power electric circuits, a method known as 'working one-handed' or 'keeping one hand in your pocket' is advised. This technique is a sensible suggestion because it reduces the risk of completing a current path through your body. Using only one hand at a time limits the possibility that electrical current could travel through the heart if an accidental contact occurs. It's important when using tools like socket wrenches or a power drill, as these can become conductive when in contact with live circuits.
In addition, mechanics often employ a length of pipe over the handle of a wrench to remove very tight bolts. This practice gives extra leverage, making it easier to turn the wrench; however, the added force can also be hazardous as it can cause the bolt to break. It is crucial to always be careful with equipment and follow safety guidelines provided in lab instructions and by teachers to minimize potential risks and ensure a safe working environment.