Arizona CDL General Knowledge study guide
Arizona CDL General Knowledge · Work through your exam, one topic at a time.
The Arizona CDL General Knowledge test is the core written knowledge exam that anyone pursuing a commercial driver license in Arizona must pass before moving on to endorsement tests and the skills (road) test. It is administered through Arizona MVD offices and authorized third-party testing providers, and it exists to confirm that a driver understands the safety rules, vehicle systems, and cargo practices that apply to large commercial vehicles on public roads. The Arizona CDL General Knowledge study guide has 12 sections and about 3,480 words.
01Driving Safely
Safe driving on the CDL General Knowledge test is mostly about space, speed, and sight distance . You must know how to judge following distance, how to scan ahead, and how to react when conditions change.
333 words, about 2 min02Transporting Cargo Safely
Improperly secured cargo causes crashes, and inspectors check it. The test focuses on weight limits, securement, and load distribution .
318 words, about 2 min03Air Brakes
Air brakes use compressed air instead of hydraulic fluid and include three braking systems: service, parking, and emergency . Understanding how air pressure builds and fails is central to the test.
318 words, about 2 min04Combination Vehicles
A tractor-trailer is two or more units joined at a pivot point. That pivot changes how the rig turns, stops, and rolls over.
291 words, about 1 min05Doubles and Triples
Pulling two or three trailers amplifies every handling problem: more off-tracking, more sway, and more brake imbalance. Converter dolly: Connects the first trailer to the second.
292 words, about 1 min06Tank Vehicles
A partly filled tank lets liquid surge forward, backward, and sideways. That surge changes stopping distance and can tip a rig over.
265 words, about 1 min07Hazardous Materials
Hazmat hauling requires special knowledge, placards, and paperwork. The test focuses on shipping papers, placards, and emergency response.
283 words, about 1 min08School Buses
School bus drivers carry children, so the rules are strict about loading, unloading, and railroad crossings. Loading and unloading: Stop, set the parking brake, place the transmission in neutral (or park), and activate the warning lights.
304 words, about 2 min09Passenger Vehicles
Bus drivers must manage passengers, stops, and the vehicle at the same time. The test covers loading, braking, and emergency procedures.
268 words, about 1 min10Vehicle Inspection
A pre-trip inspection catches problems before they become crashes. The test asks you to name what to check and how.
262 words, about 1 min11Basic Control of Your Vehicle
Basic control covers starting, steering, shifting, and stopping smoothly. The test checks that you understand how a heavy vehicle responds.
256 words, about 1 min12Sharing the Road and Space Management
Large vehicles need more room to stop and turn. Sharing the road means predicting what others will do and leaving yourself an out.
290 words, about 1 min