This is a Class B pre-trip Inspection for any straight truck and school bus for Virginia Commercial Driving test with the DMV ( Department of Motor Vehicles).. This is basically the first thing you would be expected to do for a DMV examiner in the state of Virginia.. After this section there is a incab inspection which I left off but will link you to a class A incab inspection that I did just remember everything is exactly the same except the air break test which you will not call out "4 Psi in a min" you would need to say " I lost no more than 3 psi in 1 min of holding down my service brake pedal for exactly 60 seconds"...