CDL Practice Tests: Dominate The CDL Exam!

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Question #654 (1 of 10)

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What will be the ultimate limitation that prevents you from putting the trailer tandems as far to the rear of the trailer as possible?

  • The load rating of the steer tires
  • The hole structure of the trailer tandem slider rail
  • The center of gravity of the cargo
  • The kingpin to trailer tandem length limitations
The kingpin to trailer tandem length limitations will prevent you from going too far back with your trailer tandems
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Question #198 (2 of 10)

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Identification numbers are:

  • An eight-digit code used by border-crossing agents to identify hazardous materials and will be preceded by the letters "ND" or "AD."
  • A four-digit code used by first responders to identify hazardous materials and will be preceded by the letters "NA" or "UN."
  • A six-digit code used by dispatchers to identify hazardous materials and will be preceded by the letters "NA" or "UN."
  • A two-digit code used by first responders to identify hazardous materials and will be preceded by the letters "ND" or "AD."

Identification Numbers. Identification numbers are a four-digit code used by first responders to identify hazardous materials. An identification number may be used to identify more than one chemical on shipping papers. The identification number will be preceded by the letters “NA” or “UN.” The US DOT Emergency Response Guidebook (ERG) lists the chemicals and the identification numbers assigned to them.

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Question #133 (3 of 10)

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How long does it take a typical tractor-trailer to cross the tracks?

  • At least 14 seconds to clear a single track and more than 15 seconds to clear a double track.
  • About 25 seconds
  • About 10 seconds
  • At least 5 seconds to clear a single track and more than 10 seconds to clear a double track.
It takes a typical tractor-trailer unit at least 14 seconds to clear a single track and more than 15 seconds to clear a double track.
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Question #794 (4 of 10)

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A sided vehicle containing cargo weighing 35,980 lbs must be able to withstand a rearward force of at least:

  • 28,784 lbs
  • 17,990 lbs
  • 36,000 lbs
  • 10,000 lbs

Note: If the cargo is contained in a sided vehicle, the vehicle structure MUST be strong enough to withstand the forces described earlier.

  • Forward force: 0.8 g (80%)
  • Rearward force: 0.5.g (50%)
  • Sideways force: 0.5 g (50%)
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Question #571 (5 of 10)

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Which of the following is NOT true about personal conveyance in a commercial motor vehicle?

  • The CMV may be used for personal conveyance even if it is laden (loaded)
  • 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
  • Motor carriers can not make personal conveyance limitations that are more restrictive than the guidance provided by the FMCSA
  • Personal conveyance does not reduce a driver’s or motor carrier’s responsibility to operate a CMV safely
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 #174 (6 of 10)

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The first thing to do at an accident scene is to:

  • Get your fire extinguisher ready
  • Keep another accident from happening in the same spot
  • Get to the back of your vehicle or behind your trailer
  • Park as close to the scene as possible
The first thing to do at an accident scene is to keep another accident from happening in the same spot
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Question #48 (7 of 10)

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What should you check before you even begin a vehicle inspection?

  • Check with dispatch to see if they have anything for you
  • Make sure no trees or signs are anywhere near the vehicle
  • Make sure you are at least 100 feet from any fuel pumps
  • Check That the Parking Brakes Are On and/or Wheels Chocked
Check That the Parking Brakes Are On and/or Wheels Chocked
You don't want to get run over by your own truck! Sadly, it has happened. Many accidents have happened because drivers forget to set the parking brakes or put chocks under the wheels.
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Question #97 (8 of 10)

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What is the safest speed to drive in heavy traffic?

  • The safest speed is slightly slower than the vehicles around you
  • The safest speed is that of other vehicles.
  • The safest speed is the speed of the vehicles in the lane furthest to the right
  • The safest speed is slightly faster than the vehicles around you
When you are driving in heavy traffic, the safest speed is that of other vehicles. Vehicles going the same direction at the same speed are not likely to run into one another.
Go with the flow! Now you know where that saying comes from. Well, at least I think so!
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Question #456 (9 of 10)

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The blind spot behind the bus extends how far depending on the length and width of the bus?

  • 150 to 350 feet and could extend up to 500 feet
  • 200 to 400 feet and could extend up to 600 feet
  • 300 to 500 feet and could extend up to 1000 feet
  • 50 to 150 feet and could extend up to 400 feet
The blind spot behind the bus extends 50 to 150 feet and could extend up to 400 feet depending on the length and width of the bus
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Question #594 (10 of 10)

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Which of the following is true about the 34-hour reset?

  • It allows you to reset your 60 or 70-hour clock
  • You can take it anytime, anywhere
  • You can log it as off-duty, sleeper berth, or a combination of both
  • All these are true

A driver may take a 34-hour reset at any time, as often as they like. You don’t have to be at home to take a 34-hour break. You can take it on the road. One nice thing about taking a 34-hour break on the road is that it gives you a chance to see something in the area that might interest you. When taking a 34-hour break, you may log it all as off duty, or you can mix in some sleeper berth time if you want. The main thing is that you don’t interrupt your break with any on-duty or drive time.

The 34-hour reset is not a mandatory requirement. It is an option that gives a driver more flexibility in their schedule.

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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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