CDL Practice Tests: Dominate The CDL Exam!

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Question #662 (1 of 10)

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What is the correct method of determining what percentage of fuel is distributed between the steer axle and the drive axles?

  • Weigh the truck, then immediately fuel up, and then immediately re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
  • Weigh the truck after running 100 miles, then immediately fuel up, and then re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
  • Weigh the truck, then drive exactly 100 miles, and then re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
  • Weigh the truck immediately after fueling, then run exactly 100 miles, and then re-weigh the truck to see what percentage of the added weight came off the steer axles.
In order to accurately determine what percentage of fuel weight goes to your steer axle versus your drive axles you can simply weight the truck, then immediately fuel up, and then immediately re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
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Question #683 (2 of 10)

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While driving, the freight must not:

  • All of these things should be avoided.
  • Prevent the exit of a person from the cab.
  • Obscure the driver's view ahead, left, or right.
  • Interfere with the free movement of the driver's arms or legs.
The cargo or any other object must not:
  • Obscure the driver's view ahead or to the right or left sides (except for drivers of self-steer dollies).
  • Interfere with the free movement of the driver's arms or legs.
  • Prevent the driver's free and ready access to accessories required for emergencies. OR
  • Prevent the free and ready exit of any person from the commercial motor vehicle's cab or driver's compartment.
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Question #306 (3 of 10)

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A fully loaded truck is how much more likely to roll over in a crash than an empty truck?

  • About the same
  • 20 times
  • 10 times
  • 2 times
A fully loaded truck is ten times more likely to roll over in a crash than an empty truck.
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Question #572 (4 of 10)

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Which of the following is NOT true about recording a yard move in your ELD?

  • The yard move feature in the ELD will show up as off duty time
  • Do not attempt a yard move when you are needing to complete an off-duty break. The yard move may mess up your ability to reset your clock when you expected
  • A yard move counts against your 14-hour clock and your 70-hour clock
  • A yard move does not count against your 11-hour clock because it is not applied to driving time
It is important to remember the yard move feature in the ELD will show up as on duty time. It counts against your 14-hour clock and your 70-hour clock. It does not count against your 11-hour clock because it is not applied to driving time. It differs from personal conveyance, which is recorded as off duty. A yard move is always recorded as on-duty time. Do not attempt a yard move when you are needing to complete an off-duty break. The yard move may mess up your ability to reset your clock when you expected. You can perform a yard move during your 30-minute break, since on-duty time is allowed for the 30-minute break.
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Question #363 (5 of 10)

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What have tests shown about tankers, and how should you manage it?

  • Tankers can turn over at the speed limits posted for curves. Take highway curves and on-ramp/off-ramp curves well below the posted speeds.
  • Tankers will not turn over if you follow the posted speed limit signs in curves. Always stay at the posted speed limit for any curve
  • Stopping distance will decrease as the liquid sloshes forward. Press the brakes with more of a "stabbing" motion to quickly slow the vehicle.
  • Tankers will be more likely to turn over if the center of gravity is low. Keep the center of gravity high when loading a tanker.
Tests have shown that tankers can turn over at the speed limits posted for curves. Take highway curves and on-ramp/off-ramp curves well below the posted speeds.
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Question #34 (6 of 10)

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What are the rules regarding cell phone usage while driving a commercial vehicle?

  • You are not allowed to hold a mobile telephone to conduct a voice communication or dial a mobile telephone by pressing more than a single button when driving.
  • You can not hold the phone to send a text but you can hold the phone to read text messages only
  • You may hold the phone to dial the number but most use a hands-free device while talking
  • You may hold the phone while talking but must limit the call to 10 minutes
You are not allowed to hold a mobile telephone to conduct a voice communication or dial a mobile telephone by pressing more than a single button when driving. You are not allowed to send or read text messages while driving.
This is one of the biggest problems on our highways today. Distracted drivers have changed or destroyed an untold number of lives. Please, please take this seriously!
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Question #321 (7 of 10)

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When making a right-hand turn, why is it important to keep the rear of your vehicle close to the curb?

  • To stop other drivers from passing you on the right
  • All these are correct
  • It is illegal for the trailer tires to be more than 8 feet from the curb in a turn
  • To prevent the tractor from going through a wider turn than the trailer
If there is more than one trailer, the rear wheels of the last trailer will off-track the most. Steer the front end wide enough around a corner so the rear end does not run over the curb, pedestrians, etc. However, keep the rear of your vehicle close to the curb. This will stop other drivers from passing you on the right.
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Question #442 (8 of 10)

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You're carrying hazardous materials and you see smoke coming from the trailer. You feel the back doors and they're hot. Which of the following should you NOT do?

  • Open the back doors and use your fire extinguisher to keep the fire under control until the fire department arrives
  • Keep the shipping papers with you to give to emergency personnel as soon as they arrive
  • Warn other people of the danger and keep them away
  • Call for help
When you discover a fire, call for help. You may use the fire extinguisher to keep minor truck fires from spreading to cargo before firefighters arrive. Feel trailer doors to see if they are hot before opening them. If hot, you may have a cargo fire and should not open the doors. Opening doors lets air in and may make the fire flare up. Without air, many fires only smolder until firefighters arrive, doing less damage. If your cargo is already on fire, it is not safe to fight the fire. Keep the shipping papers with you to give to emergency personnel as soon as they arrive. Warn other people of the danger and keep them away.
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Question #752 (9 of 10)

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When securing concrete pipe with a diameter of more than 45 inches loaded crosswise, how many tiedowns are required through each pipe at minimum?

  • It depends on the weight of the pipe.
  • 2
  • 1
  • 3
Requirements for securing the pipe

Secure each pipe with tiedowns through the pipe.

Run at least one tiedown through each pipe in the front half of the load. This includes the middle one if there are an odd number. The tiedown must run rearward at an angle not more than 45° with the horizontal when viewed from the side of the vehicle, whenever practicable.

Run at least one tiedown through each pipe in the rear half of the load. The tiedown must run forward at an angle not more than 45° with the horizontal when viewed from the side of the vehicle, whenever practicable. This holds each pipe firmly in contact with adjacent pipe.

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Question #477 (10 of 10)

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A school bus driver must evacuate the bus when:

  • The bus is stalled on or adjacent to a railroad-highway crossing.
  • The position of the bus may change and increase the danger.
  • The bus is on fire or there is a threat of a fire.
  • Any of these situations occur

Mandatory Evacuations. The driver must evacuate the bus when:

  • The bus is on fire or there is a threat of a fire.
  • The bus is stalled on or adjacent to a railroad-highway crossing.
  • The position of the bus may change and increase the danger.
  • There is an imminent danger of collision.
  • There is a need to evacuate quickly because of a hazardous materials spill.
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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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