Knowledge Test Class A #1
Class A Driving Test | Illinois 2025 #1 Page 5 of 7
Train for FREE online with our Illinois class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a IL CDL class A permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.
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29 . Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:
Are not concerns.
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
30 . Overloading a vehicle with cargo can affect all of the following, except:
Cruise control.
Overloading can have negative effects on a vehicle's steering, braking and speed control.
31 . Why should rental trucks be approached with caution?
They do not respond to the driver as well as other vehicles.
You should be cautious when driving near rental trucks because the people driving them may not be used to operating vehicles with limited views to the sides and rear. Drivers who cannot see others on the roadway are hazardous.
32 . A school bus driver may not operate a school bus with a minimum blood alcohol concentration (BAC) of:
0.1 percent.
It is illegal to operate a school bus if your blood alcohol concentration (BAC) is above 0.00 percent. Operating a bus with a BAC of any detectable amount may result in license disqualification.
33 . The maximum height permitted for all vehicles on Illinois highways is:
19 feet.
In Illinois, the height of any vehicle is limited to 13 feet, 6 inches. Height measurements are taken from the underside of the tire to the top of the vehicle, load included.
34 . When performing a pre-trip inspection, you should make sure that:
There is something underneath the brake pedal.
When checking your vehicle's pedals during a pre-trip inspection, you should ensure that there is nothing under or around the pedals that will obstruct their use. Make sure the pedals are in proper working condition and that the surfaces of the pedals are grooved, if applicable.
35 . Regardless the size of the cargo, it should be secured by at least ____ tie-down(s).
Four
Cargo that is required to be tied down should be secured by at least one tie-down for every 10 feet of cargo length. However, at least two tie-downs should be used no matter how small the cargo is.
2025 Illinois | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Illinois, you must already have a CDL license. Then, study the Illinois CDL handbook's section on double/triple trailers. Afterward, schedule an endorsement test at a local Secretary of State Facility. Passing this test adds the Doubles/Triples endorsement to your CDL. Remember, driving experience with such trailers cannot replace this test.
To obtain a CDL Doubles/Triples license, you need to have a valid Commercial Driver's License (CDL). You then need to study the relevant sections in the CDL manual, specifically focusing on double and triple trailers. After studying, schedule and pass the Doubles/Triples endorsement test at your local DMV. Some states may also require proof of training or experience.
While specific requirements may vary by state, generally, you do not need specialized experience or training for a CDL Doubles/Triples endorsement. However, you must hold a valid Commercial Driver's License (CDL). You'll need to study the Doubles and Triples section of your state's CDL manual and pass the endorsement knowledge test at your local DMV.
Yes, to obtain a CDL Doubles/Triples endorsement in Illinois, you must pass an additional written test. This test covers the specific knowledge required for pulling double or triple trailers. The information for this test can be found in the specialized section of the Illinois CDL handbook. No extra road skills test is required for this endorsement.
Actually, in Illinois, there's no specific road skills test for the Doubles/Triples endorsement. The process primarily involves a written knowledge test. This test focuses on topics like coupling and uncoupling, inspecting doubles and triples, and crucial driving skills for these types of vehicles. However, practical ability to handle these vehicles safely is beneficial.
No, it's not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in Illinois. Driving these types of vehicles requires specialized knowledge and skills. Therefore, you must pass the Doubles/Triples Endorsement Knowledge Test to legally operate such vehicles. Failure to do so can result in penalties, including fines and suspension of your commercial driving privileges.
You can add the Doubles/Triples endorsement to your current CDL. You do not need to initiate a new application for a CDL license. However, you'll need to pass the Doubles/Triples written knowledge test. Once you pass, the endorsement will be added to your existing CDL. Remember, each state may have specific fees for adding endorsements.
Yes, there are some limitations. A CDL Doubles/Triples endorsement allows you to operate vehicles with more than one trailer, but it doesn't permit the operation of all types of commercial vehicles. For example, you would need separate endorsements to operate a school bus, tanker vehicle, or to transport hazardous materials. Additionally, all standard CDL regulations and restrictions still apply.
In Illinois, the maximum length for a semi-trailer is 53 feet, and for each trailer in a double/triple setup, it's 28.5 feet. The gross vehicle weight limit is 80,000 lbs. However, these limits can vary depending on the type of highways and roads used. It's always best to check with local authorities or the Illinois Department of Transportation for specific restrictions.
Yes, there are specific safety guidelines. Drivers must check coupling systems regularly, maintain a safe following distance, be extra cautious in bad weather, and ensure the heaviest trailer is first. Additionally, they must comply with federal and state regulations, including hours of service rules, vehicle inspection requirements, and proper cargo securement. Remember to always prioritize safety over speed or schedule.