Air Brakes #1
Air Brakes Endorsement Test | Indiana 2025 #1 Page 3 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.
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13 . What happens if brakes become too hot?
The air compressor will kick in to cool the brakes
If brakes are overused, they may overheat and stop working. This is referred to as brake fade.
14 . The application pressure gauge:
Shows the number of times the brakes have been used.
In an air brake system, the application pressure gauge shows how much air pressure is being applied to the brakes. Not all vehicles with an air brake system have this gauge.
15 . Pressing and releasing a brake pedal unnecessarily can:
Create a loud noise.
In an air brake system, pressing and releasing the brake pedal unnecessarily can release air from the braking system faster than the compressor can replace it.
16 . The safety valve located on the first tank opens:
After every stop.
In an air brake system, the first tank that receives compressed air has a safety valve that releases air if the pressure gets too high. It is usually set to open at 150 psi. If the valve must open, there is a fault in the system that should be repaired by a mechanic.
17 . Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
Anti-Lock Braking Systems (ABS).
Truck tractors with air brakes that were manufactured on or after March 1, 1997 are required to be equipped with Anti-Lock Braking Systems (ABS). ABS is required in any other type of vehicle with air brakes that was manufactured on or after March 1, 1998.
18 . When a brake pedal is pressed and the S-cam is turned, the S-cam:
Releases air from the air tanks.
When a brake pedal is pressed and the S-cam is turned, the S-cam presses the brake shoes against the inside of the brake drum. This causes friction and will cause the vehicle to slow.
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
In Indiana, a Commercial Driver's License (CDL) Class B allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more or any such vehicle towing another not exceeding 10,000 pounds. It includes buses, farm labor vehicles, and any combination of vehicles that are not Class A vehicles.
A Class B Commercial Driver's License (CDL) in Indiana allows you to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not in excess of 10,000 pounds. This typically includes straight trucks, large buses, segmented buses, and dump trucks with small trailers.
To acquire a Class B CDL license in Indiana, you must be at least 18 years old (21 for interstate driving), possess a valid Indiana driver's license, pass a vision test, and obtain a medical clearance. You'll also need to pass written knowledge tests and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam.
In Indiana, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL) for intrastate driving (within Indiana only). However, you must be at least 21 years old to drive a commercial vehicle across state lines, carry hazardous materials, or transport passengers.
While not always necessary, specific endorsements may be required for certain jobs with a Class B CDL license in Indiana. These could include passenger, school bus, tanker, or hazardous materials endorsements. Each endorsement requires additional knowledge tests, and in some cases, a skills test. It's best to determine your job requirements before applying for endorsements.
The Class B CDL skills assessment in Indiana includes three parts: a pre-trip vehicle inspection to check if the driver can determine if the vehicle is safe to drive, a basic vehicle control test to assess the driver's ability to control the vehicle, and an on-road driving test to evaluate the driver's performance in real-world traffic situations.
Yes, there are some limitations for Class B CDL license holders. In Indiana, a Class B license allows you to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or a towed vehicle not exceeding 10,000 pounds GVWR. You can't operate vehicles that require a Class A license without the appropriate endorsements.
Yes, in Indiana, the written Class B CDL test is available in multiple languages. However, federal regulations require that all CDL holders must be able to read and speak 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, you can request accommodations for the Class B CDL written exam in Indiana due to disability. The Bureau of Motor Vehicles (BMV) is committed to ensuring that its services are accessible to all individuals. You should contact the BMV directly to discuss your specific needs and the types of accommodations available.
If you don't pass the Class B CDL written test in Indiana, you can retake it. However, you must wait until the next business day to do so. Keep in mind that there may be additional fees for each retake. It's also recommended to review your study materials thoroughly before attempting the test again.
