Which of the following is NOT a tool required for a pre-trip inspection?

A pre-trip inspection is essential for ensuring the safety and functionality of a heavy trailer before it is put on the road. The tools typically required for this inspection focus on checking the condition of various components of the vehicle.

A rag is useful for cleaning components to get a clearer view of issues that may need addressing. A flashlight is critical for illuminating dark areas, making it easier to see components that require inspection, particularly under the trailer or in tight spaces. A tire pressure gauge is essential for checking the tire pressure, which is fundamental for safe driving. Maintaining the correct tire pressure can prevent blowouts and enhance fuel efficiency.

An impact wrench, on the other hand, is primarily a tool used for loosening or tightening heavy-duty bolts and nuts, generally during maintenance or repair rather than inspection. It does not serve a direct purpose in assessing the vehicle’s safety prior to a trip, which is why it is not classified as a required tool for the pre-trip inspection.