CDL Practice Tests: Dominate The CDL Exam!

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Question #29 (1 of 10)

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If you have any detectable amount of alcohol under .04% in your system, what will happen?

  • You will be out-of-service for 30 days
  • You will be arrested and charged with a DUI
  • You will be put out-of-service for 24 hours
  • You will be fined a minimum of $500
You will be put out-of-service for 24 hours if you have any detectable amount of alcohol under .04%.
Let me be clear about this......your company will almost certainly fire you and your chances of driving a commercial vehicle again are very slim. Do not take any chances!
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Question #428 (2 of 10)

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Which of the following are true when parking a placarded vehicle?

  • All these are correct
  • Do not park within 300 feet of an open fire.
  • Someone must always watch the vehicle when parked on a public roadway or shoulder.
  • Do not uncouple a trailer and leave it with hazardous materials on a public street.
You may park a placarded vehicle (not laden with explosives) within 5 feet of the traveled part of the road only if your work requires it. Do so only briefly. Someone must always watch the vehicle when parked on a public roadway or shoulder. Do not uncouple a trailer and leave it with hazardous materials on a public street. Do not park within 300 feet of an open fire.
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Question #711 (3 of 10)

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All of these are requirements for securing longwood lengthwise except:

  • Each end of the log should extend at least 3 inches beyond the stakes.
  • Each outside log should bear against at least two stakes, one near each end of the log.
  • Must be cradled in two or more bunks or contained by stakes.
  • Secure each log with at least two tiedowns if shorter logs are carried on top of the stack.
Requirements for securing longwood loaded lengthwise
  • Longwood must be cradled in two or more bunks or contained by stakes.
  • Each outside log should bear against at least two stakes, one near each end of the log.
  • Each end of the log should extend at least 0.15 m (6 in) beyond the stakes.
  • If shorter logs are carried on top of the stack, secure each log with at least two tiedowns.
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Question #690 (4 of 10)

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Which of the following is not a method of securing side-by-side cargo?

  • Place them in direct contact with each other.
  • Make sure it is leaning forward.
  • Fill the empty space between with other cargo.
  • Use some kind of blocking to prevent shifting.
For articles of cargo placed beside each other and secured by side-to-side tiedowns:

Either place them in direct contact with each other,

Or prevent them from shifting towards each other in transit by using blocking or filling the space with other cargo.

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Question #127 (5 of 10)

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Water in the brakes can cause the brakes to:

  • Fail completely
  • Overheat from the steam during evaporation
  • Water has no potential effect on the braking force
  • Be weak, to apply unevenly, or to grab

Wet Brakes. When driving in heavy rain or deep standing water, your brakes will get wet. Water in the brakes can cause the brakes to be weak, to apply unevenly, or to grab. This can cause a lack of braking power, wheel lockups, pulling to either side, and jackknife if you pull a trailer.

Wet brakes in the winter can be a problem. The water can cause the brakes to freeze after you're parked. Before parking in the winter, drag your brakes a little while going through the parking lot. The heat will evaporate the water.
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Question #478 (6 of 10)

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What can you do as a bus driver to ensure safety in case of an emergency?

  • You can do all of these
  • Assign an older student assistant to lead the students to a “safe place” after evacuation.
  • Teach all students how to operate the various emergency exits and the importance of listening to and following all instructions given by you
  • When possible, assign two responsible, older student assistants to each emergency exit. Teach them how to assist the other students off the bus.
Be Prepared and Plan Ahead. When possible, assign two responsible, older student assistants to each emergency exit. Teach them how to assist the other students off the bus. Assign another student assistant to lead the students to a “safe place” after evacuation. However, you must recognize that there may not be older, responsible students on the bus at the time of the emergency. Therefore, emergency evacuation procedures must be explained to all students. This includes knowing how to operate the various emergency exits and the importance of listening to and following all instructions given by you.
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Question #648 (7 of 10)

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You receive a scale ticket and your drive axles are 32,200 and your trailer tandems are 35,100. Based upon the two most common tandem slider rail hole spacings, what is the minimum number of holes you would have to slide the tandems to get the weight legal, and in which direction?

  • 6 inch spacing - slide tandems back 2 holes
    4 inch spacing - slide tandems back 4 holes
  • 6 inch spacing - slide tandems back 3 holes
    4 inch spacing - slide tandems back 5 holes
  • 6 inch spacing - slide tandems forward 2 holes
    4 inch spacing - slide tandems forward 4 holes
  • 6 inch spacing - slide tandems forward 3 holes
    4 inch spacing - slide tandems forward 5 holes
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.
With 35,100 pounds on the tandems you must move a minimum of 1,100 pounds off the trailer tandems. To shift weight off the trailer tandems and onto the drive axles, you slide the trailer tandems back toward the rear of the truck.

With 6 inch spacing you're moving 400 pounds per hole so you need to move 3 holes to shift a minimum of 1,100 pounds (400 x 3 = 1,200).

With 4 inch spacing you're moving 250 pounds per hole so you need to move 5 holes to shift a minimum of 1,100 pounds (250 x 5 = 1,250).
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Question #193 (8 of 10)

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A placarded vehicle must have:

  • At least two identical placards. They are put on the front and rear.
  • At least four identical placards. They are put on the front and rear of the tractor and the front and rear of the trailer
  • At least four identical placards. They are put on the front, rear, and both sides.
  • At least eight identical placards. They are put on the front, rear and sides of both the tractor and the trailer
A placarded vehicle must have at least four identical placards. They are put on the front, rear, and both sides.
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Question #725 (9 of 10)

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Option #1 for securing coils transported with eyes lengthwise includes:

  • Attaching at least one tiedown diagonally from the left side of the vehicle, through the eye, to the right side of the vehicle
  • Attaching at least one tiedown diagonally from the right side of the vehicle, through the eye, to the left side of the vehicle
  • It should include all of these things
  • Using blocking or friction mats to prevent forward movement.
Tiedowns, Single Coil Option #1

Attach at least one tiedown diagonally from the left side of the vehicle, through the eye, to the right side of the vehicle. If possible, the angle between the tiedown and the deck should be less than 45, when viewed from the side of the vehicle.

Attach at least one tiedown diagonally from the right side of the vehicle, through the eye, to the left side of the vehicle. If possible, the angle between the tiedown and the deck should be less than 45, when viewed from the side of the vehicle.

Attach at least one tiedown side-to-side over the top of the coil.

Use blocking or friction mats to prevent forward movement.

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Question #106 (10 of 10)

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Off-ramps that go downhill and turn at the same time can be especially dangerous. Why?

  • All three reasons are correct
  • Off-ramps often have speed limit signs posted that may be safe for automobiles but may not be safe for larger vehicles or heavily loaded vehicle
  • Braking and turning at the same time can be a dangerous practice
  • The downgrade makes it difficult to reduce speed

Off-Ramps/On-Ramps. Freeway and turnpike exits can be particularly dangerous for commercial vehicles. Off-ramps and on-ramps often have speed limit signs posted. Remember: These speeds may be safe for automobiles but may not be safe for larger vehicles or heavily loaded vehicles. Exits that go downhill and turn at the same time can be especially dangerous. The downgrade makes it difficult to reduce speed. Braking and turning at the same time can be a dangerous practice. Make sure you are going slowly enough before you get on the curved part of an off-ramp or on-ramp.

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CDL Manual Sections To Choose From:

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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