Air Brakes #2
Air Brakes Endorsement Test | Massachusetts 2025 #2 Page 4 of 4
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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19 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:
Driving uphill.
Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when air tank pressure falls to a level between 20 and 45 psi. You can do this by chocking the wheels and releasing air from the braking system by stepping on and off the brake pedal. Once the pressure drops to an unsafe level, the parking brake valve should pop out and spring brakes should come on.
20 . Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.
100 psi
Before driving a vehicle with a dual air brake system, you should wait for the air compressor to build up at least 100 psi in both the primary and secondary systems.
21 . 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.
22 . Test the low pressure warning signal:
Before every trip.
It is essential that your low pressure warning light function 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.
23 . Why do large vehicles use air brakes?
Air is free.
Air brakes are an effective and safe way of stopping large and heavy vehicles, as long as they are maintained and used properly.
24 . 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.
25 . Air tank drains:
Must remain open while driving.
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
2025 Massachusetts | Frequently Asked Questions
To obtain a CDL Hazmat endorsement in Massachusetts, you must first possess a valid Commercial Driver's License (CDL). Then, pass the Hazardous Materials (Hazmat) knowledge test at a Massachusetts RMV Service Center. After passing, you will need to complete a Federal Security Threat Assessment application, including fingerprinting. Once approved, the endorsement will be added to your CDL.
To obtain a CDL Hazmat license, you need to have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials (Hazmat) knowledge test. Additionally, you are required to complete a Federal Security Threat Assessment application, which includes fingerprinting and a background check. You must be at least 21 years old and proficient in English.
When applying for a CDL Hazmat endorsement in Massachusetts, you need to provide a valid CDL, proof of U.S. citizenship or lawful permanent residency (like a passport or green card), and a completed medical self-certification form. Additionally, you must provide fingerprints and undergo a TSA background check.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test is designed to assess your knowledge of transporting hazardous materials safely. It covers topics such as loading and unloading hazardous materials, bulk packaging, and driving and parking rules. Passing this test is a mandatory step to obtain the Hazmat endorsement on your CDL.
The CDL Hazmat endorsement written test covers a range of topics related to hazardous materials. These include recognizing hazardous materials, understanding placarding and labeling requirements, safely loading and unloading hazardous materials, handling emergencies, and understanding the associated federal regulations. The goal is to ensure that drivers can safely transport hazardous materials.
Yes, there are extra charges linked to acquiring a CDL Hazmat endorsement in Massachusetts. These include the application fee, fingerprinting fee for the TSA background check, and testing fee. The fees can vary, so it's recommended to check the current charges with the Massachusetts Registry of Motor Vehicles or the TSA.
Yes, a background check is mandatory for the CDL Hazmat endorsement. This is conducted by the Transportation Security Administration (TSA). The process includes fingerprinting and checking for any disqualifying criminal offenses. This ensures that hazardous materials are transported by individuals who meet the safety and security standards.
Yes, specialized training and certification are mandatory for the CDL Hazmat endorsement. Applicants must pass a written knowledge test on the regulations and requirements of transporting hazardous materials. This ensures that they understand the safety procedures and can respond appropriately in case of an emergency. Training courses are available to prepare for this test.
No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in Massachusetts. The endorsement is required by federal law and ensures that drivers have the necessary knowledge and training to safely transport hazardous materials. Driving without the endorsement can result in severe penalties, including fines and suspension of your CDL.
Yes, you can add the CDL Hazmat endorsement to your current CDL license. You don't need to apply for a new CDL. However, you'll need to pass a written test on hazardous materials regulations and undergo a TSA security threat assessment, including a background check. Once you've met these requirements, the Hazmat endorsement can be added to your existing CDL.