Arizona CDL Practice Test

Correct answer: 18

Arizona sets the minimum age for a full commercial driver license at 21. If you are at least 18, you may apply for an intrastate CDL that is valid only in Arizona; you must be 21 to drive commercially across state lines (interstate).

Correct answer: A maximum of 12 months

The Arizona commercial learner permit is valid for a 12-month period. You must hold it at least 14 days before you are eligible to take the CDL skills test.

Correct answer: $25.00

A Class A or Class B permit with no endorsements costs $25.00. A Class C permit is $12.50 and must carry a Passenger endorsement. Fees are paid before you take any test.

Correct answer: You must wait until the next business day

Applicants must wait until the next business day to retake any failed knowledge test. Under federal rule, the state must give you a different version of the test on the retake.

Correct answer: At least 80 percent correct on each test

You must answer at least 80 percent of the questions correctly on each knowledge test to pass. This 80% standard is federal and applies to every CDL knowledge section nationwide.

Correct answer: Transporting placarded amounts of hazardous materials

Drivers under 21 hold an intrastate-only Arizona CDL and are prohibited from transporting placarded amounts of hazardous materials. Interstate operation and hazmat require age 21.

Correct answer: Every 24 months, or sooner if the examiner or a regulation requires it

Arizona requires all CDL and CLP drivers to keep a current Medical Examiner Certificate on file with MVD, renewed every 24 months or sooner as the examiner or a regulation requires. Letting it lapse leads to suspension or revocation of the CDL.

Correct answer: You must retake all CDL written, vision, and skills tests

A CDL holder whose license remains suspended or revoked for 12 months or more must retake all CDL written, vision, and demonstration-skill tests, resubmit the medical examination form, and pay all applicable fees.

Correct answer: 20/40 or better in each eye

You need uncorrected vision of 20/40 or better in each eye for an unrestricted license. If you cannot meet that without glasses or contacts, you receive a "B" restriction, meaning you must always wear them when driving.

Correct answer: A restriction limits you to operating a commercial vehicle within Arizona only

A Non-excepted Intrastate (NA) driver meets the federal CDL medical requirements but is restricted to operating a commercial vehicle within the State of Arizona only. Non-excepted Interstate (NI) allows nationwide operation.

Correct answer: Within 3 minutes

Air pressure should build from 50 to 90 psi within about 3 minutes, then continue building to the governor cut-out (usually around 120–140 psi). Know your vehicle’s requirements.

Correct answer: It should come on and then turn off

The dash ABS light should come on and then turn off. If it stays on, the ABS is not working properly. On a trailer, a yellow light staying on at the left rear signals an ABS fault.

Correct answer: Within seconds of starting the engine

Oil pressure should come up to the normal range within seconds after the engine is started. Watch the gauges and warning lights — oil, coolant, and charging warnings should go out right away.

Correct answer: Cracks, dirt, illegal stickers, or other obstructions to seeing clearly

Inspect mirrors and the windshield for cracks, dirt, illegal stickers, or anything else obstructing a clear view. Clean and adjust them as necessary before driving.

Correct answer: So no one can move the vehicle while you inspect it

Turning off the engine and taking the key with you during the walk-around ensures no one starts or moves the vehicle while you are inspecting around and under it.

Correct answer: Pump the pedal three times, then apply firm pressure for five seconds — it should not move

With hydraulic brakes, pump the brake pedal three times, then apply firm pressure and hold for five seconds. If the pedal moves, there may be a leak or other problem — get it fixed before driving.

Correct answer: With the parking brake set and vehicle in a low gear, gently pull forward against it

Fasten your safety belt, set the parking brake, put the vehicle in a low gear, and gently pull forward against the brake. If it does not hold the vehicle, it is faulty and must be fixed.

Correct answer: Brake trouble

Move about five miles per hour and push the brake pedal firmly. Pulling to one side, unusual pedal feel, or delayed stopping action can all mean brake trouble that must be corrected.

Correct answer: Every 150 miles or every 3 hours, whichever comes first

Drivers of trucks and truck tractors must inspect cargo securement within the first 50 miles of a trip, then re-check it every 150 miles or every 3 hours (whichever comes first).

Correct answer: To report anything affecting safety or that could lead to a breakdown, so it gets fixed

You may have to make a written report each day on the vehicle’s condition. Report anything affecting safety or that could lead to a mechanical breakdown so the carrier can repair it.