Arizona General Knowledge CDL Prep Test (AZ) 4

5 out of 5 (62 votes)
80% Passing score
20 Questions
4 Mistakes allowed
As you delve into the world of commercial driving in Arizona, our fourth general knowledge CDL practice test offers a strategic stepping stone towards your certification. With a set of 20 carefully selected questions, this Arizona CDL general knowledge test is tailored to enhance your understanding and retention of essential knowledge. A score of 16 correct answers is your goal, with each attempt bringing you closer to perfection. The beauty of this CDL practice test lies in its consistent question set; no matter how many times you tackle it, the questions remain the same, allowing you to measure your progress accurately. Visual learners will find a welcoming resource in our visual aids, which accompany many questions. These aids range from vivid images of road signs to intricate traffic scenarios, designed to cement your learning through illustration. Unlike the actual Arizona CDL test, our DMV practice test is unbound by time constraints. Here, you're encouraged to take the moments you need to thoroughly process each question, fostering a deep and unhurried learning experience. We understand the path to mastery requires repetition. That's why we've made it possible for you to take this CDL written practice test as many times as needed. With each attempt, you'll gain confidence and ensure you're ready to advance to subsequent challenges. This no-pressure environment is the ideal setting for honing your skills until you're ready to face the real Arizona CDL permit test.
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Sample Arizona CDL Test Questions - General Knowledge

Question 1

When should you select a lower automatic-transmission gear for a long downgrade?

  1. A Before beginning the descent
  2. B After speed has increased on the downgrade
  3. C Halfway through the grade
  4. D After reaching the bottom

Correct answer: A – Before beginning the descent

Select a low gear before starting down a grade rather than waiting for speed to build. Forcing an automatic transmission into a lower gear at high speed can damage it and may cause a loss of engine braking. Engine braking should provide the principal means of controlling downgrade speed.

Source: Arizona Commercial Driver License Manual — § 2.16.2, “Select the Right Gear before Starting Down the Grade”

Question 2

A blue highway sign displaying a white fuel-pump symbol identifies:

  1. A Gas or fuel service
  2. B A road-work zone
  3. C A temporary detour
  4. D All of these

Correct answer: A – Gas or fuel service

Blue signs with white legends or symbols are used for general services along highways. The standardized fuel-pump symbol identifies gas or fuel service. Other service symbols may identify facilities such as food, lodging, hospitals, or truck parking.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed. — § 2I.03, “General Service Signs for Freeways and Expressways,” Figure 2I-3

Question 3

Which of the following are brake defects that should be identified during a vehicle inspection?

  1. A Cracked brake drums
  2. B Brake shoes or pads contaminated with oil, grease, or brake fluid
  3. C Brake shoes that are dangerously thin, missing, or broken
  4. D All of these answers are correct

Correct answer: D – All of these answers are correct

Arizona’s CDL manual identifies all three as brake defects. Cracked drums are unsafe, while oil, grease, or brake fluid on shoes or pads can interfere with friction. Shoes that are dangerously thin, missing, or broken also indicate an unsafe braking condition.

Source: Arizona Commercial Driver License Manual — § 2.1.3, “Bad Brake Drums or Shoes”

Question 4

On an Arizona roadway, a yellow diamond sign displaying a truck silhouette warns of what condition?

This sign warns drivers to _____________.
  1. A A railroad crossing used by freight trains
  2. B A route restricted to trucks only
  3. C A requirement to remain left of all trucks
  4. D A location where trucks may unexpectedly enter the roadway

Correct answer: D – A location where trucks may unexpectedly enter the roadway

The truck symbol sign warns of a location where trucks may unexpectedly enter the roadway. The words TRUCK CROSSING may be used instead of the symbol. It does not establish a truck-only route or direct other traffic to use a particular lane.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition — § 2C.54, “Vehicular Traffic Warning Signs”

Question 5

When operating a school bus on an interstate highway in Arizona, what is the maximum permitted speed?

  1. A 45 mph or the posted limit, whichever is lower
  2. B 50 mph or the posted limit, whichever is lower
  3. C 55 mph or the posted limit, whichever is lower
  4. D 65 mph or the posted limit, whichever is lower

Correct answer: D – 65 mph or the posted limit, whichever is lower

A school bus driver may not exceed 65 mph while operating on an interstate highway. If the posted limit is lower than 65 mph, the driver must obey that lower limit. The rule does not authorize driving faster than is reasonable and safe for existing conditions.

Source: A.A.C. R13-13-104(D)(3) – Minimum Standards for School Bus Operation

Question 6

When preparing to pass a vehicle, pedestrian, or bicyclist, you should assume that the person sees you.

  1. A True
  2. B False

Correct answer: B – False

Assume the other road user does not see you when you are preparing to pass. When legal and appropriate, a light horn tap or a brief change from low to high beams at night can communicate your presence. Continue driving carefully enough to avoid a collision even if the warning is not noticed.

Source: Arizona Commercial Driver License Manual — § 2.5.2, “Communicating Your Presence”

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