Knowledge Test Class A #1
Class A Driving Test | New Hampshire 2025 #1 Page 5 of 7
Train for FREE online with our New Hampshire 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 NH 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.
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29 . How many daily hours of sleep does an adult need to maintain alertness?
Four to five
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
30 . Which gas would cause concern due to a faulty exhaust system?
A leaking exhaust system can introduce carbon monoxide, which is poisonous, into the cab or sleeper berth.
31 . Which of the following is not a cause of hydraulic brake failure?
Most cases of hydraulic brake failure come from one of two causes. The brakes may fail due to a loss of hydraulic pressure or due to overuse on long hills, causing the brakes to fade.
32 . The radiator cap:
Never remove the radiator cap or any part of the pressurized cooling system until it has cooled. Opening the cap while the system is too hot could release steam and boiling water that could severely burn you. If the radiator cap is cool to the touch, the system is likely cool enough for you to open the cap.
33 . In very hot weather, tires should be checked regularly because:
The lug nuts may loosen.
Air expands as it gets warmer, so the air pressure in your tires could reach dangerously high levels while being used in very hot weather. If this happens, stop and let your tires cool. Do not let air out of the tires, as this could result in the pressure dropping to an unsafe level once the tires cool down.
34 . When you must travel down a grade, when should you switch into a lower gear?
At the bottom of the grade
Before starting down a hill, you should shift into a lower gear. This will help get your vehicle to a speed that you can control without having to use your brakes too much.
35 . A serious traffic violation involves each of the following offenses, except:
Following too closely.
Traffic violations classified as "serious" include excessive speeding, reckless driving, operating a CMV without a valid CDL, following other vehicles too closely, and improper lane usage. Consequences for multiple serious traffic violations can result in license disqualification.
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2025 New Hampshire | Frequently Asked Questions
A CDL Class B license in New Hampshire is designed for operators of commercial vehicles with a GVWR of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. This class includes straight trucks, large buses, segmented buses, box trucks, dump trucks with small trailers, and trucks towing small trailers.
A Class B CDL license in New Hampshire allows you to operate commercial vehicles such as straight trucks, large buses, segmented buses, box trucks, and dump trucks with small trailers. You can also operate a vehicle towing another vehicle not exceeding 10,000 pounds. However, it does not permit operation of combination vehicles (Class A).
In New Hampshire, to acquire a Class B CDL, you must be at least 18 years old (21 for interstate driving), possess a valid New Hampshire driver's license, and pass a vision test. You also need to pass a general knowledge test and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam.
To qualify for a Class B CDL license in New Hampshire, you must be at least 18 years old. However, if you intend to drive commercial vehicles across state lines (interstate driving), or carry hazardous materials, you must be at least 21 years old. Always ensure to check the latest regulations.
While a Class B CDL license in New Hampshire allows you to operate certain types of commercial vehicles, specific endorsements may be required to drive particular vehicles or carry specific cargo. For instance, you'll need a Passenger (P) endorsement for buses, School Bus (S) endorsement for school buses, and a Hazardous Materials (H) endorsement for transporting hazardous materials.
The Class B CDL skills assessment in New Hampshire includes three parts: the pre-trip inspection, basic vehicle control, and on-road driving. Candidates must demonstrate knowledge of vehicle inspections, show ability to control the vehicle by backing and maneuvering in a confined space, and display safe driving practices on public roads.
Yes, Class B CDL license holders in New Hampshire are limited to driving 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 GVWR. They can't drive a vehicle that falls under Class A (like tractor-trailers) unless they have the appropriate endorsement or upgrade to a Class A CDL.
In New Hampshire, the written Class B CDL test is primarily offered in English. However, some testing centers may provide assistance or translations in other languages. It's recommended to contact the testing center directly to inquire about language accommodations. Federal regulations require all CDL holders to have a basic understanding of English for safety reasons.
Yes, you can request accommodations for the Class B CDL written exam in New Hampshire if you have a disability. The Division of Motor Vehicles (DMV) complies with the Americans with Disabilities Act (ADA) to provide reasonable accommodations. Contact your local DMV office in advance to discuss your needs and arrange suitable accommodations for your test.
Yes, if you don't pass the Class B CDL written test in New Hampshire, you can retake it. However, you may have to wait a specific period before you can attempt the test again. You might also have to pay a re-examination fee each time you retake the test. It's advisable to study thoroughly before reattempting.
