What should be done first during a pre-trip inspection of the truck?

Putting out the chock block is a critical first step in the pre-trip inspection process. This measure secures the vehicle in place, preventing any accidental movement while the driver is conducting the inspection. Ensuring that the vehicle is stable is vital to the safety of the driver and anyone else around the vehicle during the inspection.

Once the chock block is in place, the driver can safely proceed to inspect various components of the vehicle, such as the coolant level, exhaust system, and headlights. These tasks can only be carried out effectively when there is assurance that the vehicle is secure and will not roll unexpectedly. Prioritizing safety by putting out the chock block before performing any other inspections is fundamental to the process.