Air Brakes #2
Air Brakes Endorsement Test | Massachusetts 2024 #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 2024, 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.
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2024 Massachusetts | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Massachusetts, you must first possess a valid commercial driver's license (CDL). Next, study for the Doubles/Triples endorsement test using the Massachusetts CDL manual. Once prepared, schedule and pass the written test at a local RMV office. Remember that on-road skill tests are not required for this endorsement.
To obtain a CDL Doubles/Triples license, you must first have a valid CDL. You then need to study for the Doubles/Triples endorsement test, which can be found in the CDL manual. Once you're ready, schedule and pass the written test at a local RMV office. No on-road skill tests are necessary for this endorsement.
While specialized experience or training isn't mandatory for a CDL Doubles/Triples endorsement, it's recommended to familiarize yourself with handling such vehicles. The most important requirement is passing the knowledge test. Studying the state's CDL manual thoroughly will provide necessary information. Practical training, although not required, can be beneficial for real-world application.
Yes, to obtain a CDL Doubles/Triples endorsement in Massachusetts, you must pass an additional written knowledge test specifically related to the rules and safety regulations for driving double and triple trailers. This test is separate from the general CDL written exam. The information for the test can be found in the state's CDL manual.
Actually, for the CDL Doubles/Triples endorsement in Massachusetts, you only need to pass a written knowledge test. There is no specific skills test or road test required. The written test covers topics like coupling and uncoupling, inspecting doubles and triples, and managing cargo. Mastery of these topics is essential for passing the test.
No, it's not permissible. In Massachusetts, operating double or triple trailers requires a valid Class A Commercial Driver's License (CDL) with a Doubles/Triples endorsement. Driving these vehicles without the proper endorsement is against the law and can lead to significant penalties, including fines and potential loss of your CDL.
You can add the CDL Doubles/Triples endorsement to your current commercial driver's license in Massachusetts. You do not need to initiate a new application for a CDL. Instead, you apply for the endorsement, pass the required written knowledge test, and the endorsement is added to your existing CDL.
Yes, there are limitations for drivers holding a CDL Doubles/Triples endorsement in Massachusetts. They can only operate vehicles that are specifically designed to pull two or three trailers. Also, they must comply with specific weight and length restrictions. Additionally, certain roads or highways may have restrictions on the use of double/triple trailers.
In Massachusetts, the maximum weight for a vehicle (including any load) is 80,000 pounds. The maximum length for a semi-trailer in a doubles configuration is 28.5 feet, and for a triple configuration, each trailer must not exceed 28.5 feet. However, specific restrictions can vary depending on the roads or highways used.
Yes, drivers with a CDL Doubles/Triples endorsement must follow specific safety guidelines. These include maintaining a safe following distance, proper coupling and uncoupling of trailers, and regular vehicle inspections. Drivers must also be skilled in handling the high rollover risk and the effects of "crack-the-whip" phenomena associated with these types of vehicles. Failure to adhere can lead to penalties or loss of endorsement.
