Air Brakes #1
Air Brakes Endorsement Test | Indiana 2025 #1 Page 4 of 4
Train for FREE online with our Indiana CDL air brake 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 IN Class A/Class B driver 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 the requirements for CDL may vary from state to state.
25
20
20
19 . Most heavy-duty vehicles use:
Quadruple air brake systems.
Most heavy-duty vehicles use dual air brake systems, in which there are two separate braking systems operated by a single set of controls. Each system operates the brakes on different axles.
20 . If one air system in a dual air brake system is very low on pressure:
Lights on the outside of the tractor will flash.
In a dual air brake system, if one of the air systems gets very low on pressure, either the front or rear brakes will not be operating fully. You should bring your vehicle to a safe stop and have the air system repaired.
21 . If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
10 feet
The total stopping distance for vehicles equipped with air brakes is made up of four factors: perception distance, reaction distance, brake lag distance, and braking distance. When braking at a speed of 55 mph while driving on dry pavement, the brake lag can add around 32 feet to a vehicle's total stopping distance.
22 . Foundation brakes are used:
At each wheel.
Foundation brakes are used at each wheel. The most common type is the S-cam drum brake.
23 . Failing to drain the tanks in an air brake system can result in:
Too much fuel being carried.
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do this can cause damage. For example, water that has built up in the system could freeze in cold weather and cause brake failure.
24 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
25 . Air brakes are:
A tool to improve fuel efficiency.
As long as the brakes are properly maintained, using air brakes is a safe and effective method of stopping large, heavy vehicles.
See the exact questions that will be on the 2025 Indiana DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2025 Indiana | Frequently Asked Questions
To acquire a CDL Tank endorsement in Indiana, you must first have a Commercial Driver's License (CDL). Next, study the Indiana CDL handbook section on tank vehicles. Then, schedule and pass the Tank Vehicle Endorsement Knowledge Test at a BMV branch. Lastly, pay the required fee to add the endorsement to your license.
To obtain a CDL Tank license, it's essential to have a valid Commercial Driver's License (CDL). You must also pass the Tank Vehicle Endorsement Knowledge Test, which covers the special driving rules and techniques for tank vehicles. Studying the relevant section in the Indiana CDL manual can help prepare for this test.
While specific training isn't mandatory for a CDL Tank endorsement in Indiana, it's highly recommended. Having a solid understanding of the Indiana CDL handbook section on tank vehicles is crucial. Prior experience isn't required, but practicing with a professional driver or attending a driving school can increase your chances of passing the endorsement test.
Yes, in Indiana, to obtain a CDL Tank endorsement, you are required to pass the Tank Vehicle Endorsement Knowledge Test. This test is in addition to the general CDL knowledge and skills tests. Studying the tank vehicle section of the Indiana CDL handbook is crucial to pass this written test.
The written test for the CDL Tank endorsement in Indiana includes subjects like inspecting tank vehicles, driving tank vehicles, and safe driving rules specific to tank vehicles. It also covers the effects of liquid surge on vehicle handling, and knowledge about bulkheads and baffles. Studying these topics will help you pass the test.
The CDL Tank endorsement assessment in Indiana primarily focuses on knowledge rather than specific driving maneuvers. It tests your understanding of inspecting tank vehicles, driving them safely, handling liquid surge, and the function of bulkheads and baffles. However, the general CDL skills test will assess your actual driving abilities.
Yes, drivers with a CDL Tank endorsement must adhere to certain regulations. They must pass regular drug and alcohol tests, maintain a clean driving record, and follow hours-of-service regulations. Additionally, they must comply with special procedures for loading and unloading cargo, and avoid certain routes, like roads with low bridges or tunnels, due to the vehicle's size.
No, drivers cannot legally transport liquid or gas materials without a valid CDL Tank endorsement in Indiana. This endorsement is specifically required for operating a tank vehicle, which is defined as any commercial motor vehicle designed to transport any liquid or gaseous materials within a tank either permanently or temporarily attached to the vehicle.
Yes, the CDL Tank endorsement can be added to your current license. A fresh application isn't necessary. You need to pass the Indiana CDL Tank Vehicle written test, and once you do, the endorsement will be added to your existing CDL. Remember, there may be additional fees for adding endorsements.
Yes, there are specific regulations and prerequisites in place for handling hazardous materials with a CDL Tank endorsement in Indiana. These include passing a written test, undergoing a background check, obtaining a Transportation Security Administration (TSA) clearance, and completing specialized training on the safe handling and transportation of hazardous materials. Compliance with federal regulations, such as those outlined in the Hazardous Materials Regulations (HMR), is also required.
