Louisiana CDL Practice Test: General Knowledge (LA) 6

5 out of 5 (36 votes)
80% Passing score
50 Questions
10 Mistakes allowed
Are you preparing for your Louisiana CDL General Knowledge test in 2026? Look no further, because here is the perfect tool for you! This is your sixth Louisiana CDL practice test, a crucial step in your preparation. Our DMV practice test, comprising 50 questions, is designed to give you a comprehensive understanding of what to expect on the actual exam. You'll need to correctly answer at least 40 questions to pass, but don't worry, there's no time pressure here. Unlike the real 2026 Louisiana CDL test, our practice version allows you the luxury of time, enabling you to thoroughly understand each question and its implications. What sets our Louisiana CDL practice test apart is its remarkable similarity to the actual CDL permit test. The study questions you'll encounter here are closely aligned with those you'll face at the DMV, both in structure and content. This means you're getting a realistic test experience, right from the comfort of your home. We cover a wide array of topics, including vehicle equipment, handling emergencies on the road, accident procedures, pre-trip inspections, and even a primer on hazardous materials. While you might not be applying for a HazMat endorsement just yet, it's crucial for every aspiring driver to have a basic understanding of these materials. One of the key benefits of our Louisiana practice test is its freshness. We constantly update our questions to ensure they are relevant for 2026, keeping you up to speed with the latest regulations and requirements. This DMV permit practice test isn't just a preparation tool; it's an investment in your future as a professional driver in Louisiana. By taking and retaking this test, you'll build confidence and knowledge, ensuring you're well-prepared for the day of your actual CDL test in 2026. So, take your time, focus on each question, and get ready to ace that test!
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Sample Louisiana CDL Test Questions - General Knowledge

Question 1

A yellow diamond-shaped warning sign with one vertical black line crossed by a horizontal black line indicates:

This sign indicates _________________.
  1. A A pedestrian crossing ahead
  2. B A railroad crossing ahead
  3. C A rest area ahead
  4. D A crossroad intersection ahead

Correct answer: D – A crossroad intersection ahead

The Cross Road warning sign indicates that an intersection is ahead and that traffic may turn or enter from the intersecting road. Its symbol depicts the general roadway configuration. Drivers should recognize it as an intersection warning rather than a pedestrian, railroad, or service sign.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed., Rev. 1 — § 2C.41, “Intersection Warning Signs”

Question 2

What should a commercial driver do first to help prevent a secondary crash at an accident scene?

  1. A Leave the vehicle in a travel lane without warning lights
  2. B Stand in the roadway and wave at traffic
  3. C Call the dispatcher before warning approaching drivers
  4. D Activate the flashers and set out reflective triangles

Correct answer: D – Activate the flashers and set out reflective triangles

Protecting the area is the first priority at an accident scene. If possible, move an involved vehicle to the roadside, activate the four-way flashers, and place reflective triangles where approaching drivers can see them in time. Park away from the immediate scene when stopping to help because emergency responders may need that space.

Source: Louisiana Commercial Driver License Manual — § 2.20.1, “Protect the Area”

Question 3

While accepting hazardous-material cargo, what should you do with a package that is leaking?

  1. A Accept it if the shipper gives permission
  2. B Load it separately from the other packages
  3. C Transport it only on local streets
  4. D Refuse the package

Correct answer: D – Refuse the package

The Louisiana manual directs a driver to refuse leaking hazardous-material packages and shipments. Federal packaging standards require hazardous-material packages to prevent an identifiable release under conditions normally encountered during transportation. Do not solve the problem by separating the package or choosing a different route; it must not be accepted in a leaking condition.

Source: Louisiana Commercial Driver License Manual — § 9.2.3, “The Driver”; § 9.4.1, “General Loading Requirements”, 49 CFR § 173.24(b)(1) — General Requirements for Packagings and Packages

Question 4

Which practices should be used when a commercial vehicle must be backed on a curved path?

  1. A Turn toward the driver’s side when possible
  2. B Use a helper when available
  3. C Inspect the intended path before backing
  4. D All of these

Correct answer: D – All of these

Before backing, inspect the intended path and check side and overhead clearances. Back slowly while using both mirrors, and favor driver-side backing because it provides a better view of the vehicle’s rear path. A helper should be used when available to watch blind spots, but the driver remains responsible for controlling the vehicle safely.

Source: Louisiana Commercial Driver License Manual — § 2.2.4, “Backing Safely”

Question 5

Which combination may indicate that another driver is distracted?

  1. A Lane drifting, inconsistent speed, and attention directed toward objects inside the vehicle
  2. B Headlights operating during daylight
  3. C A bumper sticker on the vehicle
  4. D Maintaining a steady speed and lane position

Correct answer: A – Lane drifting, inconsistent speed, and attention directed toward objects inside the vehicle

Warning signs of distraction include drifting within or across lanes, traveling at inconsistent speeds, and handling food, maps, phones, or other objects. A driver who is focused on a passenger conversation may also be distracted. Give such a vehicle additional room and maintain a safe following distance.

Source: Louisiana Commercial Driver License Manual — § 2.9.3, “Watch Out for Other Distracted Drivers”

Question 6

A yellow diamond-shaped sign showing a truck descending a steep slope warns drivers to:

This sign warns drivers ______________.
  1. A Prepare for a downgrade and reduce speed as needed
  2. B Yield to trucks entering the roadway
  3. C Watch for highway-maintenance vehicles
  4. D Leave the roadway because trucks are prohibited

Correct answer: A – Prepare for a downgrade and reduce speed as needed

The Hill sign is placed in advance of a downgrade where the grade, length, curvature, or other conditions require special precautions. Commercial drivers should recognize it as a warning to prepare for the descent and adjust speed appropriately. It does not indicate a truck restriction or require other traffic to yield to trucks.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed., Rev. 1 — § 2C.14, “Hill Signs”

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