Class A Driving Test | Massachusetts 2025 #2 Page 3 of 7
Train for FREE online with our Massachusetts class A license 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 CDL class A permit 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 CDL class A requirements may vary from state to state.
15 . To stop a vehicle using air brakes:
To stop normally in a vehicle with air brakes, press down the brake pedal.
16 . Most heavy-duty vehicles use:
Most heavy-duty vehicles use dual air brake systems. A dual system has two separate air brake systems with a single set of controls.
17 . Blocking a load:
Cargo should be blocked to prevent it from sliding around in transit. The shifting of weight in transit can make steering and handling difficult for the driver.
18 . When using your mirrors, you should frequently look at your tires to:
Check your tires regularly when looking in your mirrors. This helps ensure that you will notice a tire fire, if one should happen. Tire fires may occur when a tire is under-inflated, if dual tires are touching, or if the tires are otherwise overheated.
19 . What is reaction distance?
Reaction distance is the distance traveled between the moment you mentally recognize a hazard and when you physically hit the brakes.
20 . A vehicle’s center of gravity is:
To reduce the risk of a vehicle tipping over, it is very important to keep its center of gravity from becoming too high.
21 . The suspension system:
The suspension system holds up a vehicle and its load while keeping the axles in place. Faults in a vehicle's suspension system are extremely dangerous.
See the exact questions that will be on the 2025 Massachusetts DMV exam.
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