Air Brakes #2
Air Brakes Endorsement Test | Wisconsin 2025 #2 Page 4 of 4
Train for FREE online with our Wisconsin 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 WI 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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19 . Vehicles with dual air brake systems:
Do not need time to build air pressure before a trip.
Before driving a vehicle with a dual air brake system, you must allow the air compressor time to build up at least 100 psi of air pressure in both the primary and secondary systems.
20 . The ____ tells a driver how much pressure is in the air tanks.
Drum brake
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
21 . How should you test the low pressure warning signal?
Uncouple and recouple all glad hands.
It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.
22 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
23 . Braking mechanisms are located inside:
Drum brakes are attached to the wheels and located on the axles of a vehicle. The braking mechanisms that cause the vehicle to stop can be found inside of a drum brake.
24 . Brakes out of adjustment will:
Brakes out of adjustment will fade before those that are properly adjusted. Brake adjustment must be checked frequently to help prevent brake issues.
25 . Emergency brakes:
Are optional.
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes. These brakes must be held by mechanical force.
2025 Wisconsin | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Wisconsin, you must first have a valid Commercial Driver's License (CDL). Then, you need to pass the Passenger Vehicles knowledge test. After passing the test, you will need to pass a skills test in a passenger vehicle. You can prepare for these tests using the Wisconsin Commercial Driver's Manual.
To obtain a CDL Passenger license in Wisconsin, you must hold a valid Commercial Driver's License (CDL), pass the Passenger Vehicles knowledge test, and complete a skills test in a passenger vehicle. Additionally, you must be at least 21 years old, have good vision, pass a medical examination, and have a clean driving record.
While Wisconsin doesn't mandate specific training for a CDL Passenger endorsement, it's highly recommended. Training can help you pass the Passenger Vehicles knowledge test and the skills test. Experience driving commercial vehicles is beneficial but not required. Studying the Wisconsin Commercial Driver's Manual is essential to understand rules and regulations.
Yes, to obtain a CDL Passenger endorsement in Wisconsin, you must pass the Passenger Vehicles knowledge test. This written exam covers topics like inspecting passenger vehicles, loading and trip start procedures, on-the-road driving, after-trip vehicle inspections, prohibited practices, and use of brake-door interlocks.
During the CDL Passenger endorsement assessment in Wisconsin, you will need to showcase skills such as proper vehicle inspection, safe loading and unloading of passengers, effective communication with passengers, maneuvering in tight spaces, driving defensively, and handling emergency situations. It is crucial to demonstrate your ability to operate the vehicle safely and efficiently while prioritizing the comfort and well-being of your passengers.
No, you cannot legally transport passengers in Wisconsin without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive a vehicle designed to carry 16 or more passengers, including the driver. Driving such vehicles without the proper endorsement can result in legal penalties, including fines and potential suspension of your license.
Yes, you can add the CDL Passenger endorsement to your existing Commercial Driver's License (CDL) in Wisconsin. You don't need a new application for the CDL itself. However, you will need to pass the Passenger Vehicles knowledge test and pay the required fee to add this endorsement to your current CDL.
Yes, there are limitations and restrictions for drivers with a CDL Passenger endorsement in Wisconsin. Some of these include:
1. Vehicle type: The endorsement is specific to operating vehicles designed to transport 16 or more passengers, including the driver.
2. Passenger age: If the vehicle is used for transporting school children, additional endorsements may be required based on the age group being transported.
3. Endorsement renewal: The CDL Passenger endorsement must be renewed every four years along with the regular CDL renewal.
4. Medical certification: Drivers with a CDL Passenger endorsement must maintain a valid medical certificate to ensure they meet the physical requirements for operating passenger vehicles.
5. Background checks: Certain employers may require additional background checks or screenings for drivers with a CDL Passenger endorsement, such as fingerprinting or criminal history checks.
It is essential to familiarize yourself with these limitations and restrictions to ensure compliance and safe operation of passenger vehicles.
1. Vehicle type: The endorsement is specific to operating vehicles designed to transport 16 or more passengers, including the driver.
2. Passenger age: If the vehicle is used for transporting school children, additional endorsements may be required based on the age group being transported.
3. Endorsement renewal: The CDL Passenger endorsement must be renewed every four years along with the regular CDL renewal.
4. Medical certification: Drivers with a CDL Passenger endorsement must maintain a valid medical certificate to ensure they meet the physical requirements for operating passenger vehicles.
5. Background checks: Certain employers may require additional background checks or screenings for drivers with a CDL Passenger endorsement, such as fingerprinting or criminal history checks.
It is essential to familiarize yourself with these limitations and restrictions to ensure compliance and safe operation of passenger vehicles.
Yes, in Wisconsin, you must be at least 18 years old to apply for a Commercial Driver's License (CDL) with a Passenger endorsement for intrastate driving (within Wisconsin only). However, federal regulations require that you must be at least 21 years old to drive a commercial motor vehicle across state lines, or to transport hazardous materials or school children.
With a Commercial Driver's License (CDL) Passenger endorsement in Wisconsin, you will be eligible to operate a wide range of passenger vehicles. These include buses, shuttles, and any other commercial vehicles designed to transport 16 or more passengers, including the driver. This endorsement also allows you to drive a vehicle used for fee-based transportation services.