How can the driver prepare for a brake inspection?

Pumping the brakes to reduce air pressure is an important step in preparing for a brake inspection, especially in vehicles equipped with air brakes. When the driver pumps the brakes, it helps to lower the air pressure in the brake system, which can reveal any leaks or issues before a full inspection takes place. This process ensures that the brakes are functioning correctly and provides the driver an opportunity to address any potential problems before they become hazardous.

In contrast, some of the other options would not contribute positively to a safe and effective brake inspection. For example, parking the bus on a hill could potentially create an unsafe situation for both the inspection and the driver. Turning off all electrical systems may not be necessary or helpful, as some systems may need to be operational to assess brake functionality. Loading students onto the bus before an inspection could pose serious safety risks, as any brake issues could endanger the occupants. Preparing properly by pumping the brakes ensures that the vehicle is ready for a thorough and effective evaluation.