Arizona CDL Class B Practice Test (AZ) 3

5 out of 5 (64 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Navigating the road to your Class B CDL in Arizona has never been more accessible than with our detailed third CDL practice test. This essential tool paves the way for you to build the confidence and knowledge needed to master the exam. Our Arizona CDL practice test, crafted with precision, consists of 20 questions that span a wide spectrum of relevant topics. Achieving a score of at least 16 correct answers will pave the way toward proficiency in essential areas like pre-trip vehicle inspection, basic vehicle control, and gear shifting, which yes, includes mastering downshifting. This resource is designed to simulate the actual testing experience for Class B CDL applicants in Arizona. It includes practical scenarios you'll encounter on the road, such as navigating hills and steep downgrades, effectively communicating with fellow drivers, and managing speed. Furthermore, it underscores the critical aspects of drug and alcohol awareness-vital for every responsible driver. Our AZ CDL general knowledge practice test stands out by being entirely free, eliminating any barriers to accessing a high-quality preparation tool. Unlike many costly alternatives, our test doesn't compromise on quality, offering numerous features to aid your study process. The questions are meticulously authored and reviewed by seasoned driving instructors, whose expertise has helped thousands secure their licenses. What's more, you can retake this CDL practice test as often as necessary, ensuring you can approach the actual exam with ease and assurance. Once you're comfortable with these questions, you can progress to subsequent exams, each step bringing you closer to your goal.
FREE CDL Practice Test App
Pass your Arizona CDL General Knowledge test with the NextDoorDriving app. Real questions and answers—100% free and ad-free.
Download on the App Store

Sample Arizona CDL Test Questions - General Knowledge

Question 1

Which of the following can indicate a tire problem during an inspection?

  1. A Too much or too little air pressure
  2. B Abnormal wear or tread separation
  3. C Cuts or other visible damage
  4. D All of these

Correct answer: D – All of these

Commercial-vehicle tire problems include improper air pressure, excessive or uneven wear, cuts, and tread separation. Drivers should also look for exposed material, damaged valve stems, mismatched tires, and dual tires touching each other or the vehicle. Each condition listed in the choices requires attention.

Source: Arizona Commercial Driver License Manual — § 2.1.3, “What to Look For—Tire Problems”

Question 2

If oncoming headlights create glare at night, where should you direct your eyes?

  1. A Slightly right, toward the right lane or edge marking
  2. B Toward the left edge of the road
  3. C Directly at the centerline
  4. D Directly into the oncoming headlights

Correct answer: A – Slightly right, toward the right lane or edge marking

The Arizona CDL manual says not to look directly at the lights of an oncoming vehicle. Instead, look slightly to the right toward a right-lane or edge marking, if one is available. This provides a roadway reference while reducing the effect of headlight glare.

Source: Arizona Commercial Driver License Manual — § 2.11.5, “Night Driving Procedures”

Question 3

Which group contains steering-system parts?

  1. A Tires, rims, and lug nuts
  2. B Leaf springs, U-bolts, and shock absorbers
  3. C Brake drums, slack adjusters, and pushrods
  4. D Steering column, steering gear box, and tie rods

Correct answer: D – Steering column, steering gear box, and tie rods

The steering column, steering gear box, and tie rods are steering-system components. During an inspection, check steering parts for looseness, bending, breakage, missing hardware, or other damage. Power-steering hoses, the pump, fluid level, and leaks must also be checked when the vehicle has power steering.

Source: Arizona Commercial Driver License Manual — § 2.1.3, “What to Look For—Steering System Defects”

Question 4

What does controlled braking involve?

  1. A Using the technique only on vehicles without ABS
  2. B Applying the brakes as hard as possible without locking the wheels
  3. C Locking the wheels, releasing the brakes, and applying them fully again
  4. D Holding the brakes down while the wheels remain locked

Correct answer: B – Applying the brakes as hard as possible without locking the wheels

With controlled braking, apply the brakes as hard as possible without locking the wheels. Keep steering-wheel movements small during the maneuver. If the wheels lock or a larger steering correction is needed, release the brakes and reapply them as soon as possible.

Source: Arizona Commercial Driver License Manual — § 2.17.2, “How to Stop Quickly and Safely”

Question 5

Which observation about wheels and rims is correct during a vehicle inspection?

  1. A Rust around wheel nuts can indicate that the nuts are loose
  2. B A cracked rim is safe after any welding repair
  3. C Missing or broken studs do not create a safety concern
  4. D Mismatched lock rings are acceptable if properly inflated

Correct answer: A – Rust around wheel nuts can indicate that the nuts are loose

The Arizona CDL manual states that rust around wheel nuts can indicate looseness, requiring a tightness check. Missing wheel hardware and mismatched, bent, or cracked lock rings are dangerous. Wheels or rims that have received welding repairs are not considered safe.

Source: Arizona Commercial Driver License Manual — § 2.1.3, “What to Look For—Wheel and Rim Problems”

Question 6

Which practice should you follow when driving a commercial vehicle at night?

  1. A Use high beams continuously
  2. B Look directly at approaching headlights
  3. C Keep your speed low enough to stop within your headlight sight distance
  4. D Turn instrument lights to their brightest setting

Correct answer: C – Keep your speed low enough to stop within your headlight sight distance

Nighttime sight distance is usually limited by the vehicle’s headlights. Select a speed that keeps the vehicle’s stopping distance within the illuminated roadway ahead. If you cannot stop within the distance you can see, you may detect a hazard too late to avoid it.

Source: Arizona Commercial Driver License Manual — § 2.11.4, “Vehicle Factors”

More Arizona CDL Practice Tests
Other CDL Endorsements