Do you have to a truck with air brakes take your cdl driving test?

Yes, if you want to obtain a Class A or Class B CDL, you will need to pass a Commercial Driver's License (CDL) driving test in a vehicle equipped with air brakes, as both Class A and Class B CDLs authorize you to operate vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, which typically requires the use of air brakes.