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.
2025 New Hampshire | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in New Hampshire, you must have a valid commercial driver's license (CDL). Then, pass the Hazardous Materials Knowledge Test at your local DMV. You'll also need to submit a fingerprint-based background check and complete the TSA security threat assessment. Once these steps are completed, you can receive your Hazmat endorsement.
To obtain a CDL Hazmat license, you first need to have a valid Commercial Driver's License (CDL). You must be at least 21 years old and a U.S. citizen or have legal status. You're required to pass the Hazardous Materials Endorsement Knowledge Test, provide proof of identity, and undergo a TSA background check and fingerprinting.
When applying for a CDL Hazmat endorsement, you'll need to present your current valid Commercial Driver's License (CDL). You'll also need proof of U.S. citizenship or legal status, such as a birth certificate or green card. A completed application form, along with payment for the fees, is also required. Lastly, you'll need to submit your TSA background check and fingerprinting results.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test is known as the Hazardous Materials Endorsement Knowledge Test. It covers the special rules and safety procedures for hauling hazardous materials. You must pass this test to obtain your Hazmat endorsement. Preparation may involve studying a state-specific CDL manual or taking practice tests.
The written test for the CDL Hazmat endorsement covers a range of topics related to hazardous materials. These include identifying different types of hazardous materials, understanding shipping papers, using placards and labels, loading and unloading hazardous materials, responding to emergencies and spills, and complying with federal and state regulations.
Yes, acquiring a CDL Hazmat endorsement in New Hampshire does involve extra charges. These include a fee for the written test, the TSA background check, and the endorsement itself. The exact amounts can vary, but you can expect to pay around $100 for the TSA check and $10 for the endorsement.
Yes, background checks are mandatory for the CDL Hazmat endorsement. The Transportation Security Administration (TSA) requires a security threat assessment, which includes fingerprinting and a criminal history check. Applicants must be U.S. citizens or have legal status. They cannot have convictions for certain crimes or pose a threat to national security, transportation security, or infrastructure.
Yes, obtaining a CDL Hazmat endorsement requires specialized training. The training covers topics like handling hazardous materials, safety procedures, and federal regulations. After training, you must pass a written test to get the endorsement. The training can often be completed through the same institution where you get your Commercial Driver’s License.
No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in New Hampshire or any other state. This endorsement is required by federal law and ensures that drivers are properly trained and capable of safely transporting hazardous materials. Violating this requirement can result in substantial fines and penalties.
Yes, you can add the CDL Hazmat endorsement to your current CDL license. However, it's not a simple addition. You'll need to pass a written test, provide proof of U.S. citizenship or legal status, and successfully complete a TSA background check. Once these steps are completed, the endorsement can be added to your existing CDL license.