CDL Practice Tests: Dominate The CDL Exam!

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Question #628 (1 of 10)

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Adding or burning off fuel will mainly change the amount of weight on which axles?

  • Steer axle and somewhat on your drive axles
  • Drive axles and somewhat on your trailer tandems
  • Trailer tandems only
  • Drive axles only
Adding or burning off fuel will mainly change the amount of weight on your steer axle and somewhat on your drive axles
Most of the weight of the fuel will go on your steer axle. The percentage of weight distributed between your steer and drive axles with regard to fuel will depend on the placement of your fuel tanks.
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Question #365 (2 of 10)

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Liquid surge results from the movement of the liquid in partially filled tanks. What are some characteristics of liquid surge?

  • When the wave hits the end of the tank, it pushes the truck in the direction the wave is moving.
  • If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection
  • When coming to a stop, the liquid will surge back and forth
  • All these are correct
Liquid surge results from the movement of the liquid in partially filled tanks. This movement can have adverse effects on handling. For example, when coming to a stop, the liquid will surge back and forth. When the wave hits the end of the tank, it pushes the truck in the direction the wave is moving. If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection. The driver of a liquid tanker must be very familiar with the handling of the vehicle.
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Question #492 (3 of 10)

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If there is a serious behavior problem on the bus, which of the following is NOT the proper way to handle it?

  • If a change of seating is needed, request that the student move to a seat near you.
  • Stop the bus. Park in a safe location off the road, perhaps a parking lot or a driveway.
  • Stand up and speak respectfully to the offender or offenders. Speak in a courteous manner with a firm voice. Remind the offender of the expected behavior. Do not show anger but do show that you mean business.
  • Put the student off the bus immediately, regardless of location along the route.

Tips for handling serious problems:

  • Follow your school’s procedures for discipline or refusal of rights to ride the bus.
  • Stop the bus. Park in a safe location off the road, perhaps a parking lot or a driveway.
  • Secure the bus. Take the ignition key with you if you leave your seat.
  • Stand up and speak respectfully to the offender or offenders. Speak in a courteous manner with a firm voice. Remind the offender of the expected behavior. Do not show anger but do show that you mean business.
  • If a change of seating is needed, request that the student move to a seat near you.
  • Never put a student off the bus except at school or at his or her designated school bus stop. If you believe that the offense is serious enough that you cannot safely drive the bus, call for a school administrator or the police to come and remove the student. Always follow your state or local procedures for requesting assistance.
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Question #740 (4 of 10)

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When securing paper rolls on a flatbed or curtainside vehicle, it is acceptable to stack rolls with eyes vertical:

  • When using tiedowns that wrap twice around the load.
  • When temperature is 63 degrees F or more.
  • Stacking rolls with eyes vertical is not acceptable
  • When total weight is less than 5,000 lbs.

Special Circumstances: Loading and Securing Paper Rolls on a Flatbed Vehicle or a Curtain-Sided Vehicle

Requirements for eyes vertical or with eyes horizontal and lengthwise

Load and secure the paper rolls as described for a sided vehicle.

Attach tiedowns to secure entire load according to the general cargo securement requirements in Section 2.

Note: Stacked loads of paper rolls with eyes vertical are prohibited

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Question #346 (5 of 10)

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When inspecting a combination vehicle, you must check which of the following?

  • All of these must be checked
  • 5th wheel release arm properly seated and safety latch/lock engaged
  • Glide plate securely mounted to trailer frame
  • Locking jaws around the shank, not the head of kingpin

When inspecting a combination vehicle, you must check the following:

  • Glide plate securely mounted to trailer frame
  • Locking jaws around the shank, not the head of kingpin
  • Release arm properly seated and safety latch/lock engaged
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Question #673 (6 of 10)

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Using the following numbers for your calculations, how much weight will come off your drive axles?

Miles per gallon: 6
Miles travelled: 360
Percentage of fuel weight on drive axles: 30%

  • 300 pounds
  • 210 pounds
  • 200 pounds
  • 144 pounds
To calculate the percentage of a value, you simply multiply the total value times the percentage you're looking for, and then divide by 100.
If you're getting 6 miles per gallon and you travel 360 miles:

360/6 = 60 gallons of fuel

60 gallons x 8 pounds per gallon = 480 pounds of total fuel burned off

Since 30% of the weight of fuel goes on our drive axles, we need to know what 30% of 480 is:

30 x 480 / 100 = 144 pounds coming off the drive axles
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Question #865 (7 of 10)

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Whenever possible, a row of metal coils with eyes vertical requires one direct tiedown to secure against rearward movement at what minimum angle?

  • 45 degrees.
  • 180 degrees.
  • 30 degrees.
  • 90 degrees.

At least one direct tiedown against the front of the row of coils, restraining against forward motion, and if practicable, making an angle 45 degrees or less with the floor.

At least one direct tiedown against the rear of the row of coils, restraining against rearward motion, and if practicable, making an angle 45 degrees or less with the floor.

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Question #269 (8 of 10)

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The warning light and buzzer should shut off when the air pressure in both air brake systems rises to a value set by the manufacturer. This value must be:

  • Greater than 100 psi
  • Greater than 120 psi
  • Greater than 60 psi
  • Less than 60 psi
The warning light and buzzer should shut off when the air pressure in both systems rises to a value set by the manufacturer. This value must be greater than 60 psi.
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Question #786 (9 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:

  • 10,000 lbs
  • 18,500 lbs
  • 7,400 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 #20 (10 of 10)

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What will happen if you are required to have a ”certified” medical status and fail to provide and keep up-to-date your medical examiner’s certificate?

  • You must retake the road test
  • You will be limited to driving dry van or reefers only
  • The federal government will issue a fine and prevent you from driving for two years
  • You become ”not-certified” and may lose your CDL.
If you are required to have a ”certified” medical status and fail to provide and keep up-to-date your medical examiner’s certificate you become ”not-certified” and may lose your CDL.
Keeping your medical card up to date is critical. If you do not maintain a current DOT medical card, they will downgrade your license from a CDL to a regular Class D license.
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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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