Arizona CDL General Knowledge Test (AZ) 5

5 out of 5 (51 votes)
80% Passing score
50 Questions
10 Mistakes allowed
You're all set to take your fifth Arizona CDL practice test, right here where your journey to mastery continues. With 50 questions laid out before you, aim to get at least 40 correct to pass this practice round. These questions won't change; they remain consistent each time you attempt this general knowledge test, ensuring you can measure your improvement and readiness for the real deal. Studying for the Commercial Driver's License in Arizona just got a whole lot easier. Dive into our DMV practice tests from anywhere at any time, whether on your phone during a break or at your desk for a focused session. These tests, mirroring the real ones, pull their questions directly from the Arizona official CDL driver's manual - the same source the state uses for the actual exam. If it's not in the manual, it won't be on your written permit test, ensuring you're studying what matters most. Unlike the real Arizona CDL test, here, the clock doesn't tick against you. Take the time you need on each question to truly understand and learn, which is key to not just passing but excelling. This relaxed approach allows you to build confidence and sharpen your test-taking strategies, providing a solid foundation for when you step into the testing center to earn your license. So, take a deep breath, focus, and let's get you ready to hit the road with knowledge and safety first.
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Sample Arizona CDL Test Questions - General Knowledge

Question 1

If your speed doubles from 20 mph to 40 mph, approximately how much longer is your braking distance?

  1. A Two times longer
  2. B Four times longer

Correct answer: B – Four times longer

Doubling speed from 20 mph to 40 mph makes braking distance approximately four times longer. The vehicle’s impact or striking power also becomes four times greater. Total stopping distance additionally includes the distance traveled while the driver perceives the hazard and reacts before braking begins.

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

Question 2

Which two broad categories should you monitor while looking well ahead?

  1. A Traffic and roadway conditions
  2. B Only nearby vehicles and traffic signals
  3. C Only disabled vehicles and debris
  4. D Only curves and pavement holes

Correct answer: A – Traffic and roadway conditions

Look ahead for traffic entering the highway, moving into your lane, turning, or slowing. You must also notice roadway conditions that affect traction, visibility, or the speed needed to maintain control. Looking far enough ahead provides more time to adjust speed or make a necessary lane change.

Source: Arizona Commercial Driver License Manual — §§ 2.4.1 and 2.6, “Seeing Ahead” and “Controlling Speed”

Question 3

In Arizona, what does a yellow diamond-shaped ROAD NARROWS sign warn you about?

This sign warns drivers that _____________.
  1. A Traffic-control devices immediately ahead
  2. B An abrupt reduction in pavement width ahead
  3. C A general hazardous-driving area
  4. D An entrance to a major highway

Correct answer: B – An abrupt reduction in pavement width ahead

The ROAD NARROWS sign warns that the pavement width decreases ahead. It is used in advance of an abrupt narrowing on a two-lane road when opposing vehicles cannot pass through the narrow portion simultaneously without reducing speed. It is different from a merge or divided-highway warning sign.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition — § 2C.17, “ROAD NARROWS Sign (W5-1)”

Question 4

Properly positioned outside convex mirrors on a school bus should show which views?

  1. A The entire side of the bus up to the mirror mounts
  2. B The front of the rear tires where they touch the ground
  3. C At least one traffic lane on each side of the bus
  4. D All of these answers are correct

Correct answer: D – All of these answers are correct

Arizona’s CDL manual requires the outside convex mirrors to provide all three listed views. These mirrors help the driver monitor traffic, side clearances, and students near the bus. Because convex mirrors distort the apparent size and distance of objects, they must be properly adjusted and used with the other mirrors.

Source: Arizona Commercial Driver License Manual — § 10.1.4, “Outside Left and Right Side Convex Mirrors”

Question 5

Which items must be inspected on every tire?

  1. A Tread depth
  2. B Overall tire condition
  3. C Inflation pressure
  4. D All of these answers are correct

Correct answer: D – All of these answers are correct

Every tire must be checked for adequate tread depth, proper inflation, and safe physical condition. Look for uneven wear, cuts, and damage to the tread or sidewalls, as well as damaged valve stems or missing valve caps. Inflation must be checked with a tire gauge rather than by simply kicking the tire.

Source: Arizona Commercial Driver License Manual — § 11.2.4, “Wheels—Tires”

Question 6

If an emergency forces you onto a clear shoulder, which braking practice is recommended?

  1. A Move every wheel off the pavement immediately
  2. B Apply the brakes hard while leaving the road
  3. C Avoid braking until about 20 mph, if possible, and then brake gently
  4. D Assume the shoulder cannot support a large vehicle

Correct answer: C – Avoid braking until about 20 mph, if possible, and then brake gently

If possible, avoid using the brakes until the vehicle slows to about 20 mph. Then brake gently to reduce the risk of skidding on a loose surface. Keep one set of wheels on the pavement when possible, and remain on a clear shoulder until the vehicle has stopped before attempting to return to the road.

Source: Arizona Commercial Driver License Manual — § 2.17.1, “Leaving the Road”

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