NEIEP Mechanics Practice Exam

Which type of ladder should never be used in mechanics work?

1. Aluminum Ladders

2. Metal Ladders

3. Wooden Ladders

4. Fiberglass Ladders

The correct answer is: Metal Ladders

In mechanics work, using metal ladders, particularly those made from aluminum, can present safety risks due to their conductive properties. When working near electrical equipment or in environments where there may be exposed wires, metal ladders can increase the risk of electric shock, making them a poor choice for such tasks. Fiberglass ladders are typically favored in mechanical environments because they are non-conductive and provide safety when working around electrical hazards. Wooden ladders, while they have some risks of their own (such as breaking or splintering), do not conduct electricity, but they can deteriorate when exposed to moisture or chemicals, which is common in mechanical environments. Aluminum ladders are relatively lightweight and can be useful in many scenarios, but a worker must be cautious of their use near electrical systems. Therefore, when considering the specific context of mechanics work, metal ladders are best avoided to prioritize safety against electrical hazards.