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.
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2025 Indiana | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Indiana, you must first have a Commercial Driver's License (CDL). Then, you need to pass the Passenger Transport Test at a Bureau of Motor Vehicles (BMV) branch. The test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.
To obtain a CDL Passenger license in Indiana, you must be at least 21 years old, have a valid regular driver's license, pass a vision test, and complete a medical examination. You must also pass a written knowledge test on operating a passenger vehicle and successfully complete the skills test in the type of vehicle you will be driving.
While Indiana doesn't specifically require training for a CDL Passenger endorsement, it's beneficial to have practical experience and knowledge about operating a commercial vehicle. Training can help prepare you for the written knowledge test and the skills test. Experience driving similar vehicles can also be advantageous. Remember, you'll need to pass both tests at a BMV branch.
Yes, in addition to the general CDL test, you must pass the Passenger Transport written test to receive a CDL Passenger endorsement in Indiana. This test covers specific rules and safety regulations related to transporting passengers. If you plan to drive a school bus, you may also need to pass a School Bus endorsement test.
During the CDL Passenger endorsement skills test in Indiana, you'll need to demonstrate your ability to inspect your vehicle, check safety equipment, and ensure passenger comfort. You'll also need to show your skills in managing space around the vehicle, stopping and starting, turning, merging into traffic, and backing up safely. Measures for emergency situations will also be assessed.
No, you cannot legally transport passengers in Indiana without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to operate a vehicle designed to carry 16 or more passengers, including the driver. Driving without the proper licensing can result in serious penalties, including fines and potential suspension of your driving privileges.
Yes, you can add the CDL Passenger endorsement to your existing Commercial Driver's License (CDL). You don't need a new license application. However, you must pass the Passenger Transport written test and, if applicable, the skills test. Once you pass, the endorsement will be added to your current CDL.
Yes, there are specific restrictions for drivers with a CDL Passenger endorsement in Indiana. These include not being able to operate a vehicle if their blood alcohol concentration is 0.04% or higher, not having any trace of a controlled substance in their system, and not committing any traffic violations while operating a commercial vehicle. Violating these can result in disqualification or suspension of the endorsement.
Yes, in Indiana, you must be at least 18 years old to get a CDL for intrastate driving (within state lines) and at least 21 years old for interstate driving (across state or national borders). These age requirements also apply to obtaining a CDL Passenger endorsement. You must also meet all other general CDL requirements.
With a CDL Passenger endorsement, you are eligible to operate vehicles such as buses, shuttles, and vans that are designed to carry 16 or more passengers, including the driver. This endorsement also allows you to drive smaller vehicles that carry fewer passengers. However, remember that specific vehicle types might require additional endorsements, like a School Bus endorsement for school buses.
