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CDL Practice Test: Driving Rules & Regulations

These CDL practice questions are from our High Road Training Program, a CDL test preparation course designed to help you learn the CDL manual.

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CDL Practice Test: Driving Rules & Regulations

Driving Rules & Regulations Questions

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Good Luck!

What is the maximum weight limit for a 5-axle combination vehicle?
  • 80,000 pounds
  • 34,000 pounds
  • 100,000 pounds
  • 20,000 pounds
This is a question from page 4 - click here to look up the answer

Quote From Page 10 Of The Illinois CDL Manual:

Weight

The maximum weight limits on both designated and non-designated streets and highways are:

  • 20,000 pounds on a single axle.
  • 34,000 pounds on a tandem, and
  • Up to 80,000 pounds of total weight on a 5-axle combination, depending upon axle spacing.
  • 20,000 pounds on a single axle
  • 34,000 pounds on a tandem
  • 80,000 pounds on a 5-axle combination, depending upon axle spacings.

TruckingTruth's Advice:

A "tandem" is a reference for a pair of axles. For example, the rear 2 axles on a tractor and the rear two axles on the trailer are considered tandems. So a single axle (such as the front axle) can have a maximum of 20,000 pounds. A tandem (two axles in close proximity) may have 34,000 pounds. But the entire weight of the vehicle can not exceed 80,000 pounds.

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Traffic violations which are deemed "serious" by the DOT carry additional consequences. What is an example of a serious traffic violation?
  • Improper Lane Usage
  • All of these are serious traffic violations
  • Excessive Speeding
  • Following Too Closely
This is a question from page 3 - click here to look up the answer

Quote From Page 9 Of The Illinois CDL Manual:

The following are listed as serious traffic violations:

  • Excessive Speeding
  • Reckless Driving
  • No Valid CDL
  • Following Too Closely
  • Improper Lane Usage
  • Conviction Involving a Fatal Accident
  • Multiple Licenses
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Commercial drivers must notify their employer about the following, except:
  • Complete employment and driving record for the previous 10 years
  • Current marital status
  • Any suspension, revocation or cancellation of their driving privileges, as well as any disqualification or out-of-service action, within one day of notification of action
  • Any traffic violation within 30 days of the date of conviction
This is a question from page 3 - click here to look up the answer

Quote From Page 8 Of The Illinois CDL Manual:

Commercial drivers also must notify their employer of the following:

  • Any traffic violation within 30 days of the date of conviction.
  • Any suspension, revocation or cancellation of their driving privileges, as well as any disqualification or out-of-service action, within one day of notification of action.
  • Complete employment and driving record for the previous 10 years.
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How long will a driver be placed out of service with a .02 Blood Alcohol Content (BAC)?
  • At least 24 hours
  • A driver will not be placed out of service unless they have a .04 BAC
  • At least 12 hours
  • A driver will not be placed out of service unless they have a .08 BAC
This is a question from page 3 - click here to look up the answer

Quote From Page 8 Of The Illinois CDL Manual:

A CDL holder operating a CMV found to have any alcohol in his or her system is placed out of service for at least 24 hours.

TruckingTruth's Advice:

Alcohol is taken very seriously for commercial drivers. If you have any alcohol in your system at all, you will be placed out of service and will most likely lose your job. While you will not be criminally charged for driving under the influence unless your BAC is .04 or higher, you can still lose your job for any level under that and will certainly be placed out of service. A good rule of thumb is "24 hours from bottle to throttle." In other words, don't even think about driving for 24 hours after your last drink.

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Which vehicle is not required to pass a safety inspection?
  • Farm tractors, machinery and other implements.
  • Vehicles owned or operated by the federal government, which display proof of ownership.
  • None of these vehicles need to pass a safety inspection
  • Vehicles with a gross weight of 8,000 pounds or less.
This is a question from page 6 - click here to look up the answer

Quote From Page 12 Of The Illinois CDL Manual:

Garages or service stations licensed by the Department of Transportation may make safety inspections. Second division vehicles not required to pass safety inspections include:

- Vehicles with a gross weight of 8,000 pounds or less.
- Farm tractors, machinery and other implements.
- Vehicles owned or operated by the city of Chicago, which display proof of ownership.
- Vehicles owned or operated by the federal government, which display proof of ownership.
- Vehicles registered as recreational vehicles, which display proper plates.
- Properly licensed antique vehicles.
- Specialized vehicles as defined by statute.
- Vehicles properly registered in another state.

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How many CDL endorsements are there?
  • 5
  • 4
  • 7
  • 9
This is a question from page 2 - click here to look up the answer

Quote From Page 4 Of The Illinois CDL Manual:

There are seven special CDL endorsements and one restriction that require testing. In addition, drivers who do not pass the air brake portion of the exams are restricted to driving vehicles without air brakes.

The endorsements are:

  • 1. Charter Bus (C)
  • 2. Combination Tank and Hazardous Materials (X)
  • 3. Double/Triple Trailers (T)
  • 4. Passenger Vehicles (P)
  • 5. School Bus Endorsement (S)
  • 6. Tank Vehicles (N)
  • 7. Vehicles Carrying Hazardous Materials (H)

Restrictions:

    1. Vehicle Without Air Brakes (L-Restriction)

TruckingTruth's Advice:

We highly recommend that everyone get all endorsements available because:

  • You don't want to restrict your opportunities
  • The tests are fairly quick, simple, and inexpensive
  • You're already going through the process of learning the materials anyhow

So make sure you get all of the endorsements.

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Knowingly and willfully leaving the scene of an accident while operating a CMV or non-CMV results in disqualification for how long?
  • Minimum of 18 months
  • Minimum of 12 months
  • Minimum of 6 months
  • Minimum of 24 months
This is a question from page 3 - click here to look up the answer

Quote From Page 8 Of The Illinois CDL Manual:

The following offenses also will lead to disqualification:

  • Knowingly and willfully leaving the scene of an accident while operating a CMV or non-CMV results in disqualification for a minimum 12 months.
  • Committing a felony while operating a CMV or non-CMV results in disqualification for a minimum 12 months.
  • A conviction for either offense above while carrying placarded hazardous materials results in disqualification for a minimum three years.
  • A conviction for violation of an out-of-service order results in disqualification for a minimum six months.
  • The use of a CMV or non-CMV in the commission of any felony involving manufacturing, distributing or dispensing a controlled substance, or possession with intent to manufacture, distribute or disperse a controlled substance,results in a lifetime disqualification.

Operating a commercial motor vehicle in violation of regulations pertaining to railroad-highway grade crossings:

  • First conviction 60-day disqualification
  • Second conviction within a three-year period -120-day disqualification
  • Third and subsequent conviction within a three year period - one year disqualification.
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There are 4 different classes of CDL licenses. Which of the following is incorrect?
  • Class C - Single vehicle with a GVWR of at least 10,001 pounds but less than 20,001 pounds
  • Class B - Single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds
  • Class A - Combination vehicles - GCWR of 26,001 or more pounds providing the GVWR of the vehicle being towed is in excess of 10,000 pounds
  • Class D - Single vehicle with a GVWR of less than 16,001 pounds
This is a question from page 2 - click here to look up the answer

Quote From Page 4 Of The Illinois CDL Manual:

The classes of licenses are as follows:

  • Class A - Combination vehicles - GCWR* of 26,001 or more pounds providing the GVWR of the vehicle being towed is in excess of 10,000 pounds.
  • Class B - Single vehicle with a GVWR* of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Class C - Single vehicle with a GVWR* of at least 16,001 pounds but less than 26,001 pounds.
  • Class D - Single vehicle with a GVWR* of less than 16,001 pounds.

*GCWR - Gross Combination Weight Rating

*GVWR - Gross Vehicle Weight Rating

TruckingTruth's Advice:

Be sure to memorize the different CDL classes, including the various weight limits for each, as at least one question almost always comes up during the state exam.

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