CDL Practice Tests: Dominate The CDL Exam!

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Question #786 (1 of 10)

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Cargo securement for a load weighing 37,000 lbs must be able to withstand a minimum forward braking force of:

  • 18,500 lbs
  • 7,400 lbs
  • 10,000 lbs
  • 29,600 lbs

How well must the securement system work? (Section 1.3)

Each cargo securement system must be able to withstand a minimum amount of force in each direction.

  • Forward Force = 80% of cargo weight when braking while driving straight ahead.
  • Rearward Force = 50% of cargo weight when accelerating, shifting gears while climbing a hill, or braking in reverse.
  • Sideways Force = 50% of cargo weight when turning, changing lanes, or braking while turning.
  • Upward Force = 20% of cargo weight when traveling over bumps in the road or cresting a hill.
    • This requirement is satisfied when the cargo is "Fully Contained."
37,000 x 80% = 29,600 lbs.
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Question #333 (2 of 10)

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What colors are the emergency lines and service lines?

  • The emergency lines are blue, the service lines are red
  • The emergency lines are red, the service lines are yellow
  • The emergency lines are yellow, the service lines are blue
  • The emergency lines are red, the service lines are blue
Emergency lines are often coded with the color red (red hose, red couplers or other parts) to keep from getting them mixed up with the blue service line.
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Question #141 (3 of 10)

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Which of the following is true about brake adjustment?

  • All of these are correct
  • Brake fade is affected by the adjustment of the brakes
  • Brakes out of adjustment will stop doing their share before those that are in adjustment. The other brakes can then overheat and fade, and there will not be enough braking available to control the vehicle.
  • To safely control a vehicle, every brake must do its share of the work
Brake fade is also affected by the adjustment. To safely control a vehicle, every brake must do its share of the work. Brakes out of adjustment will stop doing their share before those that are in adjustment. The other brakes can then overheat and fade, and there will not be enough braking available to control the vehicle. Brakes can get out of adjustment quickly, especially when they are used a lot; brake linings wear faster when they are hot. Therefore, brake adjustment must be checked frequently.
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Question #796 (4 of 10)

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Aggregate Working Load Limit is defined as:

  • The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
  • The maximum weight of a load of rocks that a securement device can withstand.
  • The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
  • A combination of securing devices which form an assembly that attaches cargo to, or restrains cargo on, a vehicle or trailer, and is attached to anchor point(s).

Aggregate Working Load Limit:

The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.

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Question #377 (5 of 10)

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The regulations require vehicles transporting certain types or quantities of hazardous materials to display diamond-shaped, square-on-point, warning signs called:

  • Hazmat Card
  • Hazmat Bill
  • Hazardous Disclosure
  • Placards
The regulations require vehicles transporting certain types or quantities of hazardous materials to display diamond-shaped, square-on-point, warning signs called placards.
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Question #550 (6 of 10)

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If your “safe” speed for going down a grade is 40 mph, you should apply the brakes once your vehicle speed reaches:

  • 45 mph
  • 40 mph
  • 35 mph
  • None of these are correct
Example: If your “safe” speed is 40 mph, you should apply the brakes once your vehicle speed reaches 40 mph. Your brakes should be applied hard enough to reduce your speed to 35 mph. Once your vehicle speed reaches 35 mph, release the brakes. Repeat this procedure as often as necessary until you have reached the end of the downgrade. This braking technique is called “snubbing.”
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Question #704 (7 of 10)

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As part of the log packing requirements:

  • Each inside log on the side of a stack of logs must touch at least two bunks, bolsters, stakes, or standards.
  • Logs must be loosely packed.
  • The center of the highest log on each side or end must be above the top of each stake, bunk, or standard.
  • Outer bottom logs must be in contact with and rest solidly against bunks, bolsters, stakes, or standards.
Packing requirements
  • Logs must be solidly packed.
  • Outer bottom logs must be in contact with and rest solidly against bunks, bolsters, stakes, or standards.
  • Each outside log on the side of a stack of logs must touch at least two bunks, bolsters, stakes, or standards. If one end of the log doesn't touch a stake:
    • It must rest on other logs in a stable manner.
    • It must extend beyond the stake, bunk, bolster, or standard.
  • The center of the highest log on each side or end must be below the top of each stake, bunk, or standard.
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Question #73 (8 of 10)

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If you must stop on or near a one-way or divided highway, you should place warning devices in what locations?

  • 10 feet and 100 feet toward the approaching traffic and one in the middle of the closest lane
  • 100 feet toward approaching traffic and 500 feet toward oncoming traffic
  • 10 feet, 100 feet, and 200 feet toward the approaching traffic.
  • 100 feet, 200 feet, and 1000 feet toward the approaching traffic.
If you must stop on or by a one-way or divided highway, place warning devices 10 feet, 100 feet, and 200 feet toward the approaching traffic.
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Question #471 (9 of 10)

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When students have gotten off the bus and reach the edge of the roadway to cross the street, which of the following is NOT the correct procedure for them to follow?

  • Stay very close to the front of the bus as they cross so they're just out of sight of the driver
  • Wait for your signal before crossing the roadway.
  • Stop and look in all directions, making sure the roadway is clear and is safe.
  • Check to see if the red flashing lights on the bus are still flashing.

When students reach the edge of the roadway, they should:

  • Stop and look in all directions, making sure the roadway is clear and is safe.
  • Check to see if the red flashing lights on the bus are still flashing.
  • Wait for your signal before crossing the roadway.
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Question #646 (10 of 10)

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What are the two most common tandem slider rail hole spacings, and roughly how much weight is transferred per hole?

  • 4 inches apart - 450 pounds per hole
    6 inches apart - 200 pounds per hole
  • 4 inches apart - 250 pounds per hole
    6 inches apart - 400 pounds per hole
  • 6 inches apart - 250 pounds per hole
    10 inches apart - 500 pounds per hole
  • 6 inches apart - 350 pounds per hole
    8 inches apart - 550 pounds per hole
The two main hole spacings you'll find are 4 inches and 6 inches. You can estimate that you will move 250 pounds per hole for 4 inch spacing, and 400 pounds per hole for 6 inch spacing.
There will be some variance here, but generally speaking these are very good estimates and they work very well. You'll learn to recognize the spacing by glancing at them eventually, but in the beginning you might want to measure quick so you know how far to slide the tandems.
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CDL Practice Tests

Our CDL practice tests are designed to help test your knowledge of the CDL Manual and sharpen your skills for taking the CDL permit and endorsement exams. They are not designed to teach you the knowledge necessary to pass the exams. Please do not try to memorize CDL practice tests in order to get your CDL. There's a better way.

Our High Road CDL Training Program is by far the easiest and most effective way to learn the materials necessary for passing your written CDL exams and preparing for a great start to your career. We strongly suggest using the High Road (which is 100% free!) to learn the CDL manual before using our CDL practice questions to test your knowledge.

How to Pass CDL Permit Test the First Time

The Class A CDL permit exam consists of a multiple choice test covering 20 different areas related to commercial driving. To prepare for this test, it is important to do practice tests beforehand. Knowing your personal study habits, getting enough rest, and eating a healthy breakfast will also set you up for success.

Tips For Passing the Commercial Driver's License (CDL) Permit Test

  • Practice Makes Perfect: The best way to both mentally and physically prepare for the written exam is to take practice tests. Start out with open-book tests and gradually work your way up to giving yourself a time limit. Finally, before the big day, take a practice exam as if it were the real thing without any help. This will give you a good indication of how well you understand the material.
  • Understand Instead of Memorize: Memorizing information can be helpful for the written exam, but the key to being fully prepared is to understand the material rather than just memorizing it. Understanding the material will allow you to answer questions correctly no matter how they are worded.
  • Real World Applications: When struggling to understand concepts, create real-world scenarios to make the information more relevant to your life. Doing this will make it easier to remember come test time.
  • Utilize Study Strategies: Utilizing study strategies such as flashcards, songs, rhymes, and phrases can help you remember the material.
  • Be Fresh and Alert: The night before the exam, get a good night's sleep and eat a filling breakfast on the morning of the exam. This will ensure you are fresh and alert to take your exam.
  • Begin Early and Space out Your Studying: It is important to give yourself ample time before the exam to get familiar with the material and get your mind ready for the big day. Consider taking a training course online or in-person, if it's required. Shop around for a course that works best for you.
  • By following these tips, you will be well prepared for your written CDL exam and on your way to a successful career.

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