Alabama CDL Practice Test: General Knowledge (AL) 6

5 out of 5 (45 votes)
80% Passing score
50 Questions
10 Mistakes allowed
Embark on your journey towards acing the Alabama CDL General Knowledge Test with our sixth practice exam. This CDL practice test is a crucial stepping stone, offering you a comprehensive set of 50 questions, meticulously crafted to mirror the actual test's format and content. You'll need to correctly answer at least 40 questions to pass, but don't worry, the same questions will reappear each time you take the general knowledge practice test, allowing you to really hone in on areas where you need more practice. Our DMV practice test encompasses a wide array of topics crucial for every aspiring commercial driver. From understanding your vehicle's equipment, managing emergencies on the road, to accident procedures, and the essential pre-trip inspection, we've got it all covered. We even include a segment on hazardous materials. While you might not be aiming for a HazMat endorsement just yet, it's vital to have a basic understanding of these materials, as they're a part of a commercial driver's everyday knowledge base. What sets our Alabama CDL practice test apart is the expertise behind it. Crafted by professional driving instructors with decades of experience, these questions are not only relevant but also reflect the real-world scenarios you'll face. These experts have guided thousands of drivers towards their licenses, ensuring that you're learning from the best in the field. Best of all, this invaluable resource is completely free. We believe in providing quality education accessible to everyone. Unlike other expensive practice tests out there, ours is cost-free but doesn't compromise on features or learning opportunities. It's an ideal tool for both first-timers and those looking to refresh their knowledge, tailored to help you excel in your Alabama CDL General Knowledge Test.
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Sample Alabama CDL Test Questions - General Knowledge

Question 1

What distinguishes road rage from aggressive driving?

  1. A There is no difference between them
  2. B Aggressive driving always includes an intent to injure someone
  3. C Road rage involves an intent to harm others or physically assault a driver or vehicle
  4. D Road rage exists only when a weapon is used

Correct answer: C – Road rage involves an intent to harm others or physically assault a driver or vehicle

Aggressive driving involves operating a vehicle in a selfish, bold, or pushy manner without regard for the rights or safety of others. Road rage goes further by involving an intent to harm others or physically assault a driver or vehicle. The definition does not require the use of a weapon.

Source: Alabama Commercial Driver License Manual — § 2.10.1, “What Is It?”

Question 2

Which group lists recognized causes of commercial vehicle fires?

  1. A Spilled fuel and improper use of flares
  2. B Smoking, improper fueling, and loose fuel connections
  3. C Flammable, poorly sealed, improperly loaded, or poorly ventilated cargo
  4. D All of these

Correct answer: D – All of these

All three groups contain recognized vehicle-fire hazards. Spilled fuel and incorrectly used flares can start fires following a collision. Smoking, improper fueling, loose fuel connections, flammable cargo, poor cargo sealing or loading, and inadequate ventilation are also listed causes that drivers should identify and prevent.

Source: Alabama Commercial Driver License Manual — § 2.21.1, “Causes of Fire”

Question 3

An empty truck generally has better braking and a shorter stopping distance than the same truck when properly loaded.

  1. A True
  2. B False

Correct answer: B – False

Heavy-vehicle components are designed to work best when the vehicle is properly loaded. An empty truck has less traction and can require more distance to stop. Its reduced traction also increases the possibility of wheel lockup and loss of control during hard braking.

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

Question 4

What is reaction distance?

  1. A The distance traveled after recognizing a hazard but before physically applying the brakes
  2. B The distance traveled while the eyes and brain are detecting a hazard
  3. C The distance traveled while the brakes are slowing the vehicle
  4. D The entire distance traveled from first seeing a hazard until the vehicle stops

Correct answer: A – The distance traveled after recognizing a hazard but before physically applying the brakes

Reaction distance is the distance traveled after the driver recognizes a hazard but before the brakes are physically applied. It is separate from perception distance, which occurs while the hazard is being seen and recognized. Braking distance begins after brake application, and all three distances contribute to total stopping distance.

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

Question 5

Under the trip-check schedule in the Alabama CDL manual, when should cargo and its securement devices be rechecked?

  1. A Only before beginning the trip
  2. B After every break taken during driving
  3. C Only when transporting hazardous materials
  4. D Only after six hours or 300 miles

Correct answer: B – After every break taken during driving

The manual calls for another cargo check within the first 50 miles, after three hours or 150 miles, and after every driving break. Federal rules require reexamination whenever the driver's duty status changes or after three hours or 150 miles, whichever occurs first. Exceptions apply to certain sealed vehicles and loads arranged so that inspection is impracticable.

Source: Alabama Commercial Driver License Manual — § 3.1, “Inspecting Cargo”, 49 CFR § 392.9(b) – Inspection of Cargo, Cargo Securement Devices and Systems

Question 6

A diamond-shaped warning sign displays a black arrow winding through several successive curves. What does it warn about?

This sign warns drivers to ____________.
  1. A A winding road with a series of curves
  2. B A highway construction area
  3. C A single reverse curve
  4. D Two sharp turns only

Correct answer: A – A winding road with a series of curves

The W1-5 Winding Road sign warns of a series of curves ahead. It may be used where there are three or more changes in roadway alignment separated by relatively short straight sections. Reverse-turn and reverse-curve signs represent two alignment changes rather than a longer winding section.

Source: Manual on Uniform Traffic Control Devices, 11th ed. with Revision 1 — § 2C.07, “Horizontal Alignment Signs (W1-1 through W1-5, W1-11, and W1-15)”

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