Air Brakes Endorsement Test | Massachusetts 2024 #2

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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . A tank endorsement is:

Only required when transporting gases.

Only required when transporting liquids.

Used when transporting both liquids and gases.

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.

2 . What does the air compressor governor do?

Controls when the air compressor pumps air into the air storage tanks.

Controls how quickly air leaves the air storage tanks.

Controls the temperature of the air entering the air storage tanks.

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.

3 . Braking mechanisms are located ____ a brake drum.

Outside

Inside

Next to

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.

4 . During a static leakage test, the maximum leakage rate for a single vehicle with air brakes is ____ in one minute.

1 psi

2 psi

3 psi

4 psi

When performing a static leakage test on a single vehicle with air brakes, the leakage rate should be no more than 2 psi in a minute. If air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.

5 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.

When tank pressure falls below 60 psi.

When tank pressure falls below 10 psi.

When tank pressure falls below 5 psi.

In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.

6 . The air pressure in a dual air brake system should build from 85 to 100 psi within:

Two minutes.

15 seconds.

10 minutes.

45 seconds.

When inspecting a vehicle with a dual air brake system, you should wait for air pressure to build from 85 to 100 psi in both the primary and secondary systems. This should take about 45 seconds.

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2024 Massachusetts | Frequently Asked Questions

A CDL Class A license in Massachusetts is defined as a commercial driver's license that permits the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 lbs or more, provided the towed vehicle(s) have a GVWR over 10,000 lbs. This typically includes tractor-trailers and truck and trailer combinations.

With a Class A CDL license in Massachusetts, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers. This license also allows you to tow vehicles over 10,000 pounds. Essentially, it covers any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more.

To obtain a Class A CDL license in Massachusetts, you must be at least 18 years old (21 for interstate travel), possess a valid driver's license, pass a vision test, and obtain a medical certificate. You must also pass a written knowledge test and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving test.

In Massachusetts, you must be at least 18 years old to qualify for a Class A CDL license. However, you need to be 21 years old if you intend to drive across state lines, transport passengers, or haul hazardous materials. It's crucial to adhere to these age restrictions for safe and legal operation of commercial vehicles.

Specific endorsements aren't required for a Class A CDL license in Massachusetts, but they allow you to operate specialized vehicles. These include endorsements for double/triple trailers, passenger vehicles, school buses, tank vehicles, and hazardous materials. Each endorsement requires passing additional knowledge and/or skills tests.

The Class A CDL skills test in Massachusetts consists of three parts: a pre-trip vehicle inspection, a basic controls test, and an on-road driving test. The pre-trip inspection tests your ability to inspect your vehicle before driving. The basic controls test evaluates your ability to maneuver and control the vehicle. The on-road driving test assesses your ability to drive the vehicle in various road and traffic conditions.

Yes, there are limitations for Class A CDL license holders. For instance, in Massachusetts, if you're under 21, you're restricted to intrastate driving. Some endorsements like HAZMAT or passenger require additional testing and background checks. Also, certain medical conditions may limit your ability to operate commercial vehicles. Violations can result in temporary or permanent disqualification of your CDL.

Yes, in Massachusetts, the written Class A CDL test can be taken in multiple languages other than English. These include Spanish and Portuguese. However, federal regulations require all CDL holders to have a basic understanding of English for safety reasons. This includes being able to read road signs, communicate with officials, and comprehend driving regulations.

Yes, you can request accommodations for the Class A CDL written test in Massachusetts if you have a disability. The Massachusetts Registry of Motor Vehicles (RMV) provides reasonable accommodations in accordance with the Americans with Disabilities Act. It's recommended to contact the RMV in advance to arrange these accommodations.

Yes, you can retake the Class A CDL written test in Massachusetts if you don't pass on your first attempt. There is a waiting period of at least 24 hours before you can retake the test. Please note, there is a retesting fee each time. It's recommended to study thoroughly to increase your chances of passing on the next attempt.