Knowledge Test Class B #2
Class B Driving Test | New Hampshire 2025 #2 Page 7 of 7
Train for FREE online with our New Hampshire 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 NH 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 . A low air pressure warning signal should activate:
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
44 . When backing with a trailer, you should:
Not use the brakes.
When backing a straight truck, you would turn the wheel in the direction you want to go. By contrast, when backing a vehicle with a trailer, you must turn the steering wheel in the direction opposite of where you want to go. Once your trailer starts to turn, you should turn the steering wheel the other way to follow the trailer.
45 . When should you slow for a curve?
You should always slow to a safe speed before entering a curve. Slowing while within the curve could cause a skid.
46 . A sign that your vehicle's brakes will need repair is that the:
Potential problems to check for when inspecting brakes include cracked drums; shoes or pads with oil, grease, or brake fluid on them; and shoes that are missing, broken, or worn dangerously thin.
47 . In an emergency, if you must leave the roadway to drive on the shoulder, you should:
Stay on the shoulder until the next exit.
If a hazard requires you to drive onto the shoulder of a road, you should try to keep one set of wheels on the pavement to maintain better control of your vehicle. If possible, stay on the shoulder until your vehicle has come to a complete stop, then pull back onto the road when it is safe to do so.
48 . To correct a drive-wheel braking skid, a driver should do all of the following, except:
Accelerate.
To correct a drive-wheel braking skid, you should first remove your foot from the brake pedal to allow the locked wheels to begin rolling again. Quickly steer in the direction you want to go, then countersteer to prevent your vehicle from skidding in the opposite direction.
49 . If you are turning left where there are two available turning lanes:
You should use both lanes.
If making a left turn where there is more than one available turn lane, you should always choose to take the rightmost lane. Large vehicles often have to swing right to make left turns, so it is safer for you to have other left-turning traffic to your left. This will allow you to have the best possible view of other turning vehicles and will lower the risk of your vehicle colliding with them.
50 . If you are experiencing an engine fire, you should:
Turn on the heater.
In the event of an engine fire, you should turn off the engine as soon as possible. Do not open the hood unless absolutely necessary. Using a fire extinguisher, shoot foam through the louvers or radiator, or from the vehicle’s underside. If you are unsure of how to treat a fire, wait for firefighters to arrive.
See the exact questions that will be on the 2025 New Hampshire DMV exam.
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2025 New Hampshire | Frequently Asked Questions
A CDL Class A license in New Hampshire is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the towed vehicle(s) have a GVWR of more than 10,000 pounds. This includes tractor-trailers and truck and trailer combinations.
With a Class A CDL license in New Hampshire, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. The license allows you to drive any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more.
To obtain a Class A CDL in New Hampshire, you must be at least 18 years old (21 for interstate driving), possess a valid New Hampshire driver's license, pass a vision test, and successfully complete a written knowledge test. Additionally, you must pass a skills test which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving examination.
In New Hampshire, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving, which means driving only within the state. However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.
Specific endorsements are not required for a Class A CDL license, but they can provide additional privileges. For example, a Hazmat endorsement allows the transportation of hazardous materials, while a Tanker endorsement permits the operation of tank vehicles. These endorsements require additional written exams. The School Bus endorsement requires both written and skills tests.
The Class A CDL skills test in New Hampshire encompasses a pre-trip vehicle inspection to assess your ability to determine if your vehicle is safe to drive. You'll also undergo a basic controls test to evaluate your ability to control the vehicle. Lastly, you'll take an on-road driving examination to demonstrate your practical driving skills in various traffic situations.
Yes, Class A CDL license holders in New Hampshire may face restrictions based on their driving ability or the type of vehicle they tested in. For instance, if a driver takes the test in an automatic transmission vehicle, they'll be restricted to driving automatics. Other restrictions may relate to air brakes, passengers, or hazardous materials.
In New Hampshire, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish. It's important to note that all CDL applicants must be able to read and speak English well enough to converse, understand traffic signs, respond to official inquiries, and make entries on reports and records.
Yes, individuals with disabilities can request accommodations for the Class A CDL written test in New Hampshire. The Division of Motor Vehicles is committed to complying with the Americans with Disabilities Act (ADA). Accommodations may include extended time, a quiet room, or a reader. Requests should be made in advance to ensure proper arrangements.
Yes, if you fail the Class A CDL written test in New Hampshire, you can retake it. However, you must wait ten days between each attempt. There's no limit to the number of times you can retake the test, but each attempt requires payment of a retest fee. It's advised to study thoroughly before retesting.
