CDL Practice Tests: Dominate The CDL Exam!

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Question #678 (1 of 10)

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You're loaded heavy with 1/2 tank of fuel onboard. Using the following numbers, where should you move the 5th wheel to get it setup properly?

steer axle: 10,800 pounds
drive axles: 34,700 pounds
Weight transfer: 500 pounds per hole

  • Move the 5th wheel forward 1 hole
  • Move the 5th wheel back 1 hole
  • Move the 5th wheel forward 2 holes
  • Move the 5th wheel back 2 holes
The best way to make sure the 5th wheel is set properly is to scale the truck with a minimum of 1/2 tank of fuel and a very heavy load. Under those circumstances, you will want the 5th wheel positioned so that the steer tires are as close to 12,000 pounds as possible without going over, and the trailer tandems as close to 34,000 as possible without going over.
Moving the 5th wheel forward takes weight off the drive axles and puts it onto the steer axle. If we move it forward 2 holes and it transfers 500 pounds per hole, then we wind up moving 1000 pounds from the drive axles to the steer axle:

steer axle: 11,800 pounds
drive axles: 33,700 pounds
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Question #250 (2 of 10)

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In an air brake system, the low air pressure warning signal:

  • Is required on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 200 psi (or one-half the compressor governor cutout pressure on older vehicles)
  • None of these are true
  • Is optional on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 60 psi (or one-half the compressor governor cutout pressure on older vehicles)
  • Is required on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 60 psi (or one-half the compressor governor cutout pressure on older vehicles)

A low air pressure warning signal is required on vehicles with air brakes. A warning signal you can see must come on before the air pressure in the tanks falls below 60 psi (or one-half the compressor governor cutout pressure on older vehicles). The warning is usually a red light. A buzzer may also come on.

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Question #570 (3 of 10)

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When can a driver record time operating a CMV for personal conveyance as off-duty

  • When the company wants the driver to begin driving toward a customer even though the driver does not have the load information yet
  • When the driver is out of driving hours but has less than 100 miles to go to the destination
  • When the driver is driving a tractor without the trailer attached
  • When the driver is relieved from work and all responsibility for performing work by the motor carrier
Personal conveyance is the movement of a commercial motor vehicle (CMV) for personal use while off-duty. A driver may record time operating a CMV for personal conveyance as off-duty only when the driver is relieved from work and all responsibility for performing work by the motor carrier. The CMV may be used for personal conveyance even if it is laden (loaded), since the load is not being transported for the commercial benefit of the motor carrier at that time. Personal conveyance does not reduce a driver’s or motor carrier’s responsibility to operate a CMV safely. Motor carriers can establish personal conveyance limitations either within the scope of, or more restrictive than, the guidance provided by the FMCSA.
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Question #238 (4 of 10)

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Which component is used to hold compressed air and will hold enough air to allow the brakes to be used several times, even if the compressor stops working?

  • Air storage tanks
  • Service pump
  • Air Compressor gate
  • Governor

Air storage tanks are used to hold compressed air. The number and size of air tanks varies among vehicles. The tanks will hold enough air to allow the brakes to be used several times, even if the compressor stops working.

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Question #528 (5 of 10)

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In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check which of the following lighting indicators:

  • All these are correct
  • Strobe light indicator, if equipped.
  • Alternately flashing red lights indicator.
  • Alternately flashing amber lights indicator, if equipped.

In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check the following lighting indicators (internal panel lights):

  • Alternately flashing amber lights indicator, if equipped.
  • Alternately flashing red lights indicator.
  • Strobe light indicator, if equipped.
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Question #179 (6 of 10)

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The B:C type fire extinguisher is designed to work on:

  • electrical fires and burning liquids
  • metals or combustible gases
  • plastics and recyclables
  • wood, paper, or cardboard
The B:C type fire extinguisher is designed to work on electrical fires and burning liquids
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Question #222 (7 of 10)

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Which of the following statements are true about a standee line?

  • It is a line behind the third row of seats designating the furthest point to the rear of the bus that a passenger can stand. All passengers must be in front of the standee line and must be removed from the bus for failure to comply.
  • It is a line on the sidewalk at a bus stop which passengers must wait behind while the bus approaches. It is a requirement by state law. No bus can open the door for a passenger who was in front of this line.
  • It is a 2-inch line on the floor or some other means of showing riders where they cannot stand. This is a requirement for all buses designed to allow standing. All standing riders must stay behind it.
  • It is a red line along the back of the bus designating where riders must stand. They are to remain within this area while the bus is in motion.
No rider may stand forward of the rear of the driver's seat. Buses designed to allow standing must have a 2-inch line on the floor or some other means of showing riders where they cannot stand. This is called the standee line. All standing riders must stay behind it.
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Question #711 (8 of 10)

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All of these are requirements for securing longwood lengthwise except:

  • Each outside log should bear against at least two stakes, one near each end of the log.
  • Secure each log with at least two tiedowns if shorter logs are carried on top of the stack.
  • Must be cradled in two or more bunks or contained by stakes.
  • Each end of the log should extend at least 3 inches beyond the stakes.
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 #523 (9 of 10)

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Re-grooved or re-capped tires are not permitted on:

  • Any tires
  • Trailer tires
  • Steer tires
  • Drive tires

The following items must be inspected on every tire:

  • Tread depth: Check for minimum tread depth (4/32 on steering axle tires and 2/32 on all other tires).
  • Tire condition: Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
  • Tire inflation: Check for proper inflation by using a tire gauge or a mallet. Note: You will not get credit if you simply kick the tires to check for proper inflation.
  • That there is no mismatch tires (size and construction).
  • Re-grooved or re-capped tires are not permitted on bus steer tires.
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Question #729 (10 of 10)

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What is the minimum weight of a shipment of paper rolls that would require specific securement requirements?

  • It depends on how they're loaded
  • 5,000 lbs
  • 2,268 lbs
  • 10,000 lbs

The rules in this section apply to shipments of paper rolls, which individually or together, weigh 2268 kg (5000 lb.) or more.

Note: Shipments of paper rolls that weigh less than 2268 kg (5000 lb.), and paper rolls that are unitized on a pallet may either be secured in accordance this section or with the general cargo securement requirements

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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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