Tank #1
Tank Endorsement Test | Illinois 2025 #1 Page 3 of 3
Train for FREE with our Illinois tank endorsement practice test online. 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 tank license 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 DMV requirements for issuing a CDL tank vehicle endorsement may vary from state to state.
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15 . To help control liquid surge, a driver should:
Brake well in advance of a stop.
Drive vehicles with unbaffled tanks slowly and carefully, especially when stopping and starting. Brake well in advance of any stops and increase your following distance.
16 . What is the Johnson bar?
A valve that allows for the release of excess pressure in the braking system
The trailer hand valve, also called the trolley valve or Johnson bar, is used to work the trailer brakes. It should be used only to test the brakes.
17 . Before starting down a hill, you should:
Move into the left lane.
Always downshift before beginning to drive downhill. Take the hill at a speed that does not require you to overuse your brakes.
18 . If colors are being used to distinguish glad hands, which color is used for emergency lines?
Red
When trailer air lines are color-coded, the service lines are generally blue and the emergency lines are generally red.
19 . To prevent a rollover, cargo should be:
Loaded with most weight on the driver’s side of a trailer.
To reduce the risk of rollover, the weight of cargo in a trailer should be centered and spread out as much as possible. The weight of the cargo should also be kept as low to the ground as possible.
20 . What happens when a vehicle hydroplanes?
The vehicle becomes heavier.
Hydroplaning occurs when a vehicle's tires lose contact with the road surface and instead glide along on a film of water above the surface of the road.
See the exact questions that will be on the 2025 Illinois DMV exam.
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2025 Illinois | Frequently Asked Questions
A CDL Class A license in Illinois is a commercial driver's license that permits the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the vehicle(s) being towed is/are over 10,000 pounds. This typically includes tractor-trailers and truck and trailer combinations.
With a Class A CDL license in Illinois, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. Additionally, it allows the operation of all vehicles covered by Class B and Class C, provided the driver has the appropriate endorsements.
To obtain a Class A CDL license in Illinois, you must be at least 18 years old (21 for interstate driving), possess a valid Illinois driver's license, pass a vision test, and complete a written knowledge exam. You're also required to pass a skills and road test in the type of vehicle you plan to drive. A medical examination report is also typically required.
To qualify for a Class A CDL license in Illinois, you must be at least 18 years old. However, to drive across state lines or to carry hazardous materials, you must be at least 21 years old. Also, you'll need to pass both a written knowledge test and a skills test.
While specific endorsements aren't required for a Class A CDL license in Illinois, additional endorsements can expand the types of vehicles you're allowed to drive or cargo you can transport. For example, an H endorsement permits the transportation of hazardous materials, while a P endorsement allows for the transportation of passengers.
The Class A CDL skills test in Illinois encompasses three parts: a pre-trip vehicle inspection, a basic vehicle control test, and a road test. Examinees must demonstrate their ability to inspect their vehicle, control the vehicle in various situations, and drive safely in normal traffic conditions.
Yes, limitations can be imposed on Class A CDL license holders based on factors like medical conditions or lack of certain skills. For example, a driver may receive a restriction if they can't operate a manual transmission or if they need adaptive equipment to drive. Restrictions are noted on the CDL and must be adhered to while operating commercial vehicles.
Yes, in Illinois, the written Class A CDL test is available in several languages besides English, including Spanish. However, federal law requires that all CDL holders understand English well enough to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, accommodations can be made for the Class A CDL written test if you have a disability. These may include providing the test in an alternate format or allowing additional time. It's important to contact the Illinois Secretary of State's office in advance to discuss your needs and make necessary arrangements.
Yes, you can retake the Class A CDL written test in Illinois if you don't pass on your first attempt. However, you'll need to wait at least 24 hours before retaking the test. Also, keep in mind that each retest may require an additional fee. It's advisable to study thoroughly before attempting the test again.
