Combination #1
Combination Vehicles Practice Test | Massachusetts 2025 #1
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 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 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 2025 Massachusetts DMV exam.
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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.
