Air Brakes #2
Air Brakes Endorsement Test | Massachusetts 2024 #2 Page 2 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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7 . Which type of brakes do most heavy-duty vehicles have?
Gravity brakes
For safety, most heavy-duty vehicles are equipped with dual air brake systems.
8 . Air tanks usually hold enough compressed air:
For an unlimited number of stops.
In an air braking system, the air storage tanks can usually hold enough compressed air for the brakes to be used several times.
9 . When you need to stop in an emergency, you should:
Expect your vehicle to slow down more quickly than usual.
If you need to make an emergency stop, you can use either the controlled braking method or the stab braking method. It's important to brake in a way that keeps your vehicle traveling in a straight line while still allowing you to turn, if necessary.
10 . An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.
450 feet
A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.
11 . All air tanks must include:
A warning sticker.
Air brake system tanks must contain drain valves. These valves are used to drain accumulated oil and water from the tanks and may be either manually or automatically operated.
12 . If the brake pads rub against the brake drums and create too much heat:
The air compressor will kick on to cool the brakes.
Brakes heat up with use. If they are overused and become too hot, expansion and chemical changes will make them less effective and eventually cause them to stop working altogether. This is known as "brake fade."
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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.
