OSHA 10 Hour Construction Program Practice Test

Which of the following is the best method to avoid injuries from electrical devices?

1. Wearing gloves

2. Insulation and grounding

3. Using rubber mats

4. Switching to battery-operated tools

The correct answer is: Insulation and grounding

The best method to avoid injuries from electrical devices is through insulation and grounding. Insulation helps to prevent electrical current from passing through unintended paths, which can lead to electric shocks or fires. Proper insulation around wires and electrical components ensures that the current is contained within safe boundaries, reducing the risk of accidental contact. Grounding serves as a safety mechanism that directs any stray electricity safely to the ground, effectively reducing the potential for electric shock. If a fault occurs, such as a short circuit, grounding provides a pathway for the excess electricity to flow away from the user and into the earth, thereby minimizing the risk of injury. While wearing gloves can provide a layer of protection, particularly if they are specially designed for electrical work, they cannot replace the effectiveness of proper insulation and grounding. Similarly, the use of rubber mats can offer some protection from electric shock, but they are not foolproof. Battery-operated tools can reduce the risk associated with direct electrical connections, but they do not address safety concerns with the existing electrical systems. Thus, insulation and grounding are essential safety measures in preventing electrical injuries.