Arizona CDL Practice Test: General Knowledge (AZ) 6

4.9 out of 5 (57 votes)
80% Passing score
50 Questions
10 Mistakes allowed
Embark on your journey to obtaining your Arizona CDL with our comprehensive Arizona General Knowledge Practice Test. As the sixth in our series of practice tests, this tool is specially designed to prepare you for the real deal. Featuring 50 meticulously crafted questions, this CDL test demands at least 40 correct answers to pass, mirroring the stringent standards of the actual DMV test. Each question has been chosen to reflect the real general knowledge test's format and content, ensuring you are well-prepared for what lies ahead. Our Arizona CDL practice test covers a wide array of topics, including vehicle equipment knowledge, emergency handling, accident procedures, pre-trip inspection, and even a primer on hazardous materials. While you might not be pursuing a HazMat endorsement just yet, understanding the basics of hazardous materials is essential for every driver. We understand the importance of accessibility and flexibility in learning. That's why our Arizona CDL practice test is readily available online. Whether you prefer studying on a desktop, a mobile device, or through our mobile app, you can access our practice tests anytime, anywhere. This level of accessibility ensures that you can fit your study time into your busy schedule seamlessly. Our DMV practice test employs a multiple-choice and true/false format. This approach not only mirrors the actual DMV test but also aids in honing your skills in analyzing and eliminating incorrect answers. Through consistent practice with our test, you'll develop a sharper understanding of the real written knowledge test format and improve your chances of success. Prepare to conquer the Arizona DMV CDL test with confidence. Our practice test is your stepping stone to mastering the general knowledge needed for your CDL.
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Sample Arizona CDL Test Questions - General Knowledge

Question 1

Which situation can call for downshifting?

  1. A Before starting down a hill
  2. B Before entering a curve
  3. C When engine rpm or road speed indicates that a lower gear is needed
  4. D All of these answers are correct

Correct answer: D – All of these answers are correct

Downshift before beginning a downgrade so the engine can help control speed without excessive brake use. Before a curve, reduce speed and select the proper gear before entering it. During ordinary driving, use engine rpm or road speed to determine when the transmission needs a lower gear.

Source: Arizona Commercial Driver License Manual — § 2.3.1, “Manual Transmissions”

Question 2

What is perception distance?

  1. A The distance traveled while moving your foot from the accelerator to the brake pedal
  2. B The distance traveled from first seeing a hazard until your brain recognizes it
  3. C The distance traveled after the brakes have been applied
  4. D The time required for the brakes to begin working

Correct answer: B – The distance traveled from first seeing a hazard until your brain recognizes it

Perception distance is the distance the vehicle travels from the moment the driver sees a hazard until the brain recognizes it. Reaction distance begins after recognition and continues until the driver physically applies the brakes. Braking distance is the distance traveled while the brakes are slowing the vehicle.

Source: Arizona Commercial Driver License Manual — § 2.6.1, “Stopping Distance”

Question 3

Water can safely be used on which of these fires?

  1. A An electrical-equipment fire
  2. B A gasoline fire
  3. C Neither fire
  4. D Both fires

Correct answer: C – Neither fire

Do not use water on an electrical fire because it can cause an electric shock. Water should not be used on a gasoline fire because it can spread the burning fuel and flames. Use an extinguisher rated for the fire involved, and wait for trained firefighters if the correct method is uncertain, especially with hazardous materials.

Source: Arizona Commercial Driver License Manual — § 2.21.3, “Fire Fighting—Use the Right Fire Extinguisher”

Question 4

If another vehicle is following you too closely, you should reduce the space between your vehicle and the vehicle ahead.

  1. A True
  2. B False

Correct answer: B – False

Arizona’s CDL manual recommends increasing your following distance when you are being tailgated. More room ahead reduces the likelihood that you will need to make a sudden change in speed or direction. Signal early, slow gradually when necessary, and do not increase your speed merely because another driver is following too closely.

Source: Arizona Commercial Driver License Manual — § 2.7.2, “Dealing with Tailgaters Safely”

Question 5

How far ahead should a commercial driver generally look while driving?

  1. A 2 to 5 seconds
  2. B 5 to 10 seconds
  3. C 12 to 15 seconds
  4. D 15 to 25 seconds

Correct answer: C – 12 to 15 seconds

Most good drivers look at least 12 to 15 seconds ahead, or the distance the vehicle will travel during that time. This is approximately one block at lower speeds and one-quarter mile at highway speeds. Continue shifting your attention between near and distant conditions rather than focusing only on the farthest point.

Source: Arizona Commercial Driver License Manual — § 2.4.1, “How Far Ahead to Look”

Question 6

Which statement about night driving and fatigue risk is correct?

  1. A High beams should be used continuously from 7 p.m. to 7 a.m.
  2. B Most drivers are more alert at night than during daylight
  3. C Many heavy motor vehicle crashes occur between midnight and 6 a.m.
  4. D Roadway hazards are easier to identify at night

Correct answer: C – Many heavy motor vehicle crashes occur between midnight and 6 a.m.

The Arizona CDL manual notes that many heavy motor vehicle crashes occur between midnight and 6 a.m. Most people are less alert at night, particularly after midnight, and darkness makes hazards harder to see. Driving during normal sleeping hours increases the risk of fatigue and a fall-asleep crash.

Source: Arizona Commercial Driver License Manual — § 2.11.2, “Driver Factors—Fatigue and Lack of Alertness”

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