TruckingTruth logo

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.

Our High Road Training Program has the entire CDL manual built right in along with multiple choice questions, a scoring system, and a review system to help reinforce the materials. It's highly effective, super easy to use, and free! Let me tall ya....using The High Road is a thousand times easier than trying to read the entire CDL manual cover to cover.

Click Here To Learn More

CDL Practice Test: Driving Rules & Regulations

Driving Rules & Regulations Questions

Click On The Picture To Begin

Good Luck!

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 24 months
  • Minimum of 6 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.
Next
What is the maximum height for all vehicles on all highways?
  • 12 feet, 9 inches
  • 13 feet
  • 13 feet, 6 inches
  • 14 feet, 6 inches
This is a question from page 4 - click here to look up the answer

Quote From Page 10 Of The Illinois CDL Manual:

Height

The maximum height for all vehicles on all designated state and federal highways is 13 feet, 6 inches, including load from the underside of the tire to the top of the vehicle. This includes the US Interstate system. Individual states may set their own maximum height limits, but those limits must be equal to or greater than 13 feet, 6 inches.

TruckingTruth's Advice:

Any vehicles exceeding 13 feet, 6 inches in height must obtain proper permits.

Prev
Next
The maximum allowable width for commercial vehicles on designated state highways is:
  • None of these answers are correct
  • 7 feet 6 inches
  • 9 feet
  • 8 feet
This is a question from page 4 - click here to look up the answer

Quote From Page 9 Of The Illinois CDL Manual:

Width

The maximum width for most vehicles traveling on the United States Interstate System is 8 feet, 6 inches. While some individual states may have their own maximum limits on US Interstates within their state boarders, those limits must meet or exceed 8 feet, 6 inches

Prev
Next
Which of the following requires a CDL?
  • A farmer driving a combination vehicle equipped with air brakes
  • A recreational vehicle longer than 35 feet in length
  • Military personnel transporting hazardous materials in a combination vehicle weighing more than 50,001 pounds
  • Driving a vehicle weighing more than 26,001 for commercial purposes across state lines
This is a question from page 1 - click here to look up the answer

Quote From Page 3 Of The Illinois CDL Manual:

The following vehicle operators are not required to obtain a CDL:

Farm Equipment Operators - This exemption covers legitimate farm-to-market operations by farmers, not commercial grain haulers. CDLs are not required to operate vehicles:

  • Controlled and operated by a farmer, a member of the farmer's family or an employee;
  • Used to transport farm products, equipment or supplies to or from a farm (including nurseries and aquacultures);
  • Used within 150 air miles of the farm; and
  • Not used in the operations of a common or contract carrier; and
  • Used in nursery or agricultural operations.

NOTE: For the drivers of truck-tractor semitrailers, the farmer, his or her spouse and their children, parents on both sides, brothers and sisters on both sides and their spouses operating a truck-tractor semitrailer and meeting the above criteria also are exempted from the CDL Program. These drivers must be at least age 21, and the vehicle must have Farm plates. These drivers are still required to take the appropriate CDL written, skills and road tests to be licensed.

  • Firefighting Equipment Operators - Because most firefighting organizations have extensive initial training and retraining requirements for their equipment operators, Illinois waives CDL requirements for operators of firefighting equipment owned or operated by or for a government agency, when responding to or returning from an emergency.
  • Military Vehicle Operators - Operators of military vehicles for military purposes are exempt from obtaining a CDL.
  • Recreational Vehicle Operators - Recreational vehicle operators, when using the vehicle primarily for personal use, do not need a CDL.

A CDL must be obtained by the driver of any of the following vehicles:

  • Any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.
Prev
Next
What does GCWR stand for?
  • General Contractor Weight Rating
  • General Cargo Weight Rating
  • Gross Combination Width Rating
  • Gross Combined Weight Rating
This is a question from page 1 - click here to look up the answer

Quote From Page 3 Of The Illinois CDL Manual:

GCWR (Gross Combined Weight Rating) - Value specified by the manufacturer as the GVWR of the power unit plus the GVWR of the towed unit or units, or the combined registered weight of the power unit plus the towed unit(s).

TruckingTruth's Advice:

Be sure you understand the difference between GCWR and GVWR. It's best to memorize the meanings and definitions of both as it will probably show up on the written exam.

Prev
Next
The operator of a commercial motor vehicle can be criminally charged with driving under the influence of alcohol with a BAC of:
  • .04
  • .08
  • .02
  • .05
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 may not operate a commercial vehicle with a BAC of .04 or more or a noncommercial vehicle with a BAC of .08 or more.

TruckingTruth's Advice:

It is important to note that any CDL holder found operating a commercial vehicle with any level of alcohol in his or her system will be placed out of service for a minimum of 24hrs. Drivers will not be criminally charged unless their BAC is .04 or higher, but commercial drivers are not allowed to operate commercial vehicles with even a trace amount of alcohol in their system.

And don't even think about having any alcohol anywhere in the cab of the truck at anytime - not even in the side box. If you get caught with it, it will likely be the end of your job, and possibly worse.

Prev
Next
Radar detectors are not allowed in a commercial motor vehicle except:
  • When the device is not in working order and/or has its power cable disconnected and batteries removed
  • When the device is contained in a locked, opaque box or similar container or the device is not in the passenger compartment of the vehicle and is not in operation
  • When the device is placed under the drivers seat and not powered on
  • Radar detectors are never allowed inside commercial motor vehicles
This is a question from page 6 - click here to look up the answer

Quote From Page 12 Of The Illinois CDL Manual:

Law prohibits CMVs from being equipped with any instrument designed to detect the presence of, or interfere with, microwaves at frequencies used by police radar for the purpose of monitoring vehicle speed. The term "equipped" means and includes possession or use within a CMV.


A motorist shall not be in violation if the device is contained in a locked, opaque box or similar container or the device is not in the passenger compartment of the vehicle and is not in operation.

Prev
Next
A Farm Equipment Operator must obtain a CDL if...
  • The farm equipment operator will be traveling further than 150 miles from his or her farm
  • Farm equipment operators are always exempt from obtaining a CDL provided they are transporting farm products, equipment or supplies to or from a farm
  • The farmer is transporting farm goods to a local market for commercial purposes
  • The operator is the spouse of the farm owner
This is a question from page 1 - click here to look up the answer

Quote From Page 3 Of The Illinois CDL Manual:

Farm Equipment Operators - This exemption covers legitimate farm-to-market operations by farmers, not commercial grain haulers. CDLs are not required to operate vehicles:

  • Controlled and operated by a farmer, a member of the farmer's family or an employee;
  • Used to transport farm products, equipment or supplies to or from a farm (including nurseries and aquacultures);
  • Used within 150 air miles of the farm; and
  • Not used in the operations of a common or contract carrier; and
  • Used in nursery or agricultural operations.

NOTE: For the drivers of truck-tractor semitrailers, the farmer, his or her spouse and their children, parents on both sides, brothers and sisters on both sides and their spouses operating a truck-tractor semitrailer and meeting the above criteria also are exempted from the CDL Program. These drivers must be at least age 21, and the vehicle must have Farm plates. These drivers are still required to take the appropriate CDL written, skills and road tests to be licensed.

Prev
Finish
Please select an option
[2,3,1,4,4,1,2,1]
8

Ready For A Quiz? Pick A Category:

Join Us!

We have an awesome set of tools that will help you understand the trucking industry and prepare for a great start to your trucking career. Not only are they fantastic, but everything we offer here at TruckingTruth is 100% free - no strings attached! So sign up now and get instant access to our member's section, including:
High Road Training Program Logo
  • The High Road Training Program
  • The High Road Article Series
  • The Friendliest Trucker's Forum Ever!
  • Private messaging for more personal questions
  • Email Updates When New Articles Are Posted

About Us

Picture Of Brett Aquila
TruckingTruth was founded by Brett Aquila (that's me!), a 15 year truck driving veteran, in January 2007. After 15 years on the road I wanted to help people understand the trucking industry and everything that came with the career and lifestyle of an over the road trucker. We'll help you make the right choices and prepare you for a great start to your trucking career.