FREE CDL Combination Vehicles Practice Test Online | Massachusetts 2024
Train for FREE online with our Massachusetts CDL combination vehicle 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 combination license in 2021, 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . Using the trailer hand brake while experiencing a trailer jackknife will:
Continue the skid.
If you are experiencing a trailer jackknife, you can help your tires regain traction by releasing the brakes. Using a trailer hand brake while experiencing a skid will only cause the skid to continue.
2 . What happens when the wheels of a trailer lock up?
The trailer will stop.
A trailer tends to swing around, potentially resulting in a trailer jackknife, if its wheels lock up.
3 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
Air pressure is above 45 psi.
In vehicles equipped with an automatic tractor protection valve, the valve will pop out if air pressure drops to a level between 20 and 45 psi. When the valve pops out, the protection valve will close, stopping the flow of air.
4 . Rollovers happen when drivers:
Drive illegally.
A rollover happens as a result of a driver taking a turn at too high a speed. Be sure to take turns and curves safely and slowly.
5 . An Anti-Lock Braking System (ABS):
Assists with the operation of brake lights.
The function of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up during hard braking.
6 . A tractor protection valve is:
A device that allows the battery to recharge efficiently.
On combination vehicles with air brakes, the tractor protection valve keeps air in the tractor or truck brake system, should the trailer develop a bad leak or break away from the tractor.
7 . After connecting the air lines to the trailer while coupling, you should:
Connect the electrical cord.
Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. After connecting the air lines to the trailer while coupling, you should supply air to the trailer.
See the exact questions that will be on the 2024 Massachusetts DMV exam.
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2024 Massachusetts | Frequently Asked Questions
In Massachusetts, a CDL Class B license allows the holder to operate any single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds GVWR. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers, including the driver.
A Class B CDL license in Massachusetts allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. These vehicles include large buses, segmented buses, box trucks, dump trucks with small trailers, and tractor-trailers.
To acquire a Class B CDL license in Massachusetts, you must be at least 18 years old, possess a valid Massachusetts driver's license, pass a vision test, and complete a CDL application. You'll also need to pass a written knowledge exam and a skills test, which includes a pre-trip vehicle inspection, basic controls test, and on-road driving exam.
In Massachusetts, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL). However, please note that if you want to use your CDL to drive commercial vehicles across state lines (interstate driving), federal regulations require you to be at least 21 years old.
While not always necessary, specific endorsements may be required for certain Class B CDL jobs in Massachusetts. Endorsements certify additional skills like driving a school bus, operating a vehicle with air brakes, or transporting hazardous materials. Each endorsement requires passing a separate knowledge test and sometimes a skills test.
The Class B CDL skills assessment in Massachusetts includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam. The pre-trip inspection tests your knowledge on the key parts of the vehicle. The basic controls test assesses your ability to maneuver and control the vehicle, and the on-road test evaluates your driving skills in traffic.
Class B CDL license holders in Massachusetts are restricted to driving single or combination vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) towed is not more than 10,000 pounds. They are not allowed to drive a Class A combination vehicle without the appropriate endorsement.
Yes, in Massachusetts, the written Class B CDL test is available in multiple languages, including but not limited to Spanish, Chinese, and Portuguese. However, federal regulations require all CDL holders to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, in Massachusetts, accommodations can be made for the Class B CDL written exam if you have a disability. You should contact the Massachusetts Registry of Motor Vehicles (RMV) in advance to discuss your specific needs. Accommodations may include more time, a quiet room, or having the test read aloud, depending on your situation.
Yes, if you don't pass the Class B CDL written test in Massachusetts, you can retake it. However, you must wait a specific period before retaking the test. The Massachusetts Registry of Motor Vehicles (RMV) requires a two-week waiting period between attempts. Be aware that you may be required to pay a retest fee as well.
