Air Brakes #1
Air Brakes Endorsement Test | Massachusetts 2025 #1
Train for FREE online with our Massachusetts 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 MA 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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1 . What does the air compressor governor do?
Controls the temperature of the air leaving the air storage tanks.
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.
2 . Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.
100 psi
Before driving a vehicle with a dual air brake system, allow time for the air compressor to build up pressure of at least 100 psi in both the primary and secondary systems.
3 . Air tank drains:
Clean the air in the passenger compartment.
In an air brake system, air tanks have drains to remove accumulations of water and compressor oil. Allowing water and oil to accumulate in the system could cause damage to the brakes. Manually operated drains should be used daily.
4 . A tank endorsement is:
Optional when transporting hazardous materials.
In general, a tank endorsement is required to a drive tank vehicle used to transport liquids or gases. This applies to both hazardous and non-hazardous materials.
5 . When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
Alcohol evaporator.
When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.
6 . Braking mechanisms are located ____ a brake drum.
On top of
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.
2025 Massachusetts | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Massachusetts, you need to pass a written knowledge test and a skills test in the type of vehicle you plan to drive. You must already hold a Commercial Driver's License (CDL). Additionally, you may need to pass a background check if you will be transporting school children.
To obtain a CDL Passenger license in Massachusetts, you must be at least 21 years old, possess a valid Massachusetts driver's license, and pass a Department of Transportation (DOT) physical examination. Additionally, you'll need to pass both knowledge and skills tests for the specific class of vehicle you'll be driving. Successful completion of a background check is also required.
Yes, specific training is usually required to secure a CDL Passenger endorsement. The training typically involves learning the specific rules and regulations related to passenger transport, as well as hands-on experience driving the type of vehicle you'll be operating. You'll also need to pass written and skills tests to demonstrate your knowledge and abilities.
Yes, additional written tests are mandatory for obtaining a CDL Passenger endorsement in Massachusetts. In addition to passing the general knowledge test, you must also pass a specific written test for the Passenger endorsement. This test covers topics such as loading and unloading passengers, safe driving practices, and emergency procedures.
During the CDL Passenger endorsement assessment, you'll need to demonstrate skills such as safe loading and unloading of passengers, proper use of emergency exits, driving safely in traffic, and handling unexpected situations. Additionally, you'll be tested on maneuvers like turning, backing up, and parking the specific class of vehicle you'll be operating.
No, it's illegal to transport passengers commercially without a valid CDL Passenger endorsement in Massachusetts. This endorsement ensures that drivers have the necessary training and skills to safely transport passengers. Violating this law can lead to significant fines, loss of your CDL, or even jail time in severe cases.
In Massachusetts, you can add the CDL Passenger endorsement to your existing CDL. You don't need a new application. However, you will need to pass a written knowledge test and a skills test in a vehicle of the same class that you plan to drive with passengers. It's important to check with the RMV for specific procedures and fees.
Yes, there are certain restrictions for drivers with a CDL Passenger endorsement in Massachusetts. For instance, these drivers must not have more than one serious traffic violation in three years. Additionally, they must not operate a vehicle carrying passengers unless all passengers have their seat belts fastened. Violating these restrictions can lead to fines or loss of endorsement.
Yes, to obtain a CDL Passenger endorsement in Massachusetts, you must be at least 21 years old. This age requirement is set by the Federal Motor Carrier Safety Administration (FMCSA) and applies nationwide. It ensures that commercial drivers have sufficient driving experience and maturity to handle the responsibilities of transporting passengers safely.
With a CDL Passenger endorsement in Massachusetts, you're 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 is often required for jobs like city bus drivers, school bus drivers, and shuttle service operators.