You can get a Class A CDL permit by passing a series of written exams. In most states, the written tests to get a Class A CDL permit include General Knowledge, Air Brakes and Combination vehicles. A CDL driving test must be passed in which the driver completes a 3-part exam that includes a pre-trip inspection test, basic control skills test, and driving test at either a state CDL test site or approved 3rd party test site in the testing State.