Knowledge Test Class B #1
Class B Driving Test | Massachusetts 2025 #1 Page 7 of 7
Train for FREE online with our Massachusetts class B 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 B 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 B requirements may vary from state to state.
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43 . If a tire fails, you should:
Turn sharply off the road.
In the event of tire failure, hold the steering wheel firmly. Stay off the brakes and let the vehicle slow down on its own. Once the vehicle has slowed considerably, you should brake very gently, pull off the road, and stop. Check your tires after coming to a complete stop.
44 . An underloaded front axle:
Is discouraged as it can improve fuel efficiency.
Underloading a front axle may make it impossible to safely steer your vehicle. Keep weight distribution in mind when loading cargo.
45 . If you must drive very slowly, you should:
Sound your horn.
If you must drive slowly, you should warn drivers behind you by turning on your emergency flashers, as long as local law permits their use.
46 . When parked on the side of a road, you should:
Stand in the roadway and wave your arms.
If you must stop on the side of the road, you should turn on your emergency flashers to alert other road users. This is particularly important at night.
47 . Air brakes are:
A tool to improve fuel efficiency.
As long as the brakes are properly maintained, using air brakes is a safe and effective method of stopping large, heavy vehicles.
48 . When entering a curve, you should:
Take the vehicle out of gear.
Always reduce your speed and downshift before entering a curve.
49 . Which of the following could reduce the amount of space between the road surface and an overhead object, such as a bridge?
Rain
You should not assume that signs marking the height of a bridge or overpass are exactly correct. If the road was repaved after the sign went up, or if snow is on the ground, the clearance may be different than what the sign indicates.
50 . Which of the following is a good rule to follow when making a turn?
Signal early.
Signal well in advance of a turn so drivers behind you are aware of your intentions. Keep the signal on throughout the turn and turn it off once the turn is complete.
See the exact questions that will be on the 2025 Massachusetts DMV exam.
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2025 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.
