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Free New Hampshire CDL Permit Practice Test: General Knowledge 2025
Part of mandatory Entry-Level Driver Training Course Based on 2025 NH commercial driver's license manualAvailable in EN, ES
50questions
10mistakes allowed
80%passing score
New Hampshire has a robust manufacturing industry because of its generally business-friendly economic policies and its proximity to Quebec and Massachusetts, specifically Montreal and the Port of Boston. Of course, truckers play major roles in transporting products manufactured in New Hampshire and transporting goods from the Port of Boston to the rest of New England.
Several major highways and secondary roads are important for commercial transportation. Interstate 93 is one of New Hampshire’s most heavily used commercial routes. It begins at Canton, Massachusetts, continues through Boston and then through Concord and Manchester in New Hampshire, and ends at Saint Johnsbury, Vermont. Unfortunately, this highway is notorious for traffic bottlenecks near Boston. Other major commercial routes include Interstate 95 and U.S. Routes 3, 4, and 202.
Want to drive these roads and earn money in the process as a licensed commercial driver? One of your most important early steps is to pass the official General Knowledge written test on commercial driving theory. This is a necessary step to becoming eligible for a Commercial Learner’s Permit (CLP), which will allow you to practice commercial driving under supervision. And once you’ve become proficient at commercial driving, you can take the official skills test for a Commercial Driver’s License (CDL).
To prepare to pass this knowledge test, you should read the official New Hampshire CDL Driver’s Guide (New Hampshire CDL Handbook 2025) if you haven’t already done so. This manual contains all the information on which you’ll be tested. However, we believe that you should take additional steps to ensure that you retain the information and answer test questions on it accurately.
This free New Hampshire CDL permit practice test, one of several we offer, is based on the official New Hampshire manual, just like the official knowledge test. It’s up to date as of January, 2025. There are 50 multiple-choice questions on such topics as cargo management, driving on downgrades, emergency preparedness, and vehicle components. Unlike the official knowledge test, each question on this practice test comes with an available hint to suggest the correct answer, and an explanation of the correct answer. What this practice test doesn’t have is a time limit. Take as much time as you need to learn as much as you can. Consider using the test like an open-book test. Have a copy of the CDL Driver’s Guide open as you take the test so you can look up the correct answers to questions that puzzle you. You’ll learn more that way than by random guessing.
Perfect for
- First-time NH CDL and CLP applicants
- CDL holders adding endorsements
- NH CDL renewal applicants
What to expect on the actual exam
| How many questions | 50 |
|---|---|
| How many correct answers to pass | 40 |
| Passing score | 80% |
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List of questions (classic view)
- To pass the eyesight screening examination, you must have __________ or better.
- Letting the air out of hot tires
- To transport cargo safely, which of the following are you NOT responsible for?
- For how long will you lose your CDL driving privileges if you are convicted of a second DUI offense in either a CMV or your private vehicle?
- The minimum tire tread depth for front tires is
- If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?
- You should put the starter switch key into your pocket while you perform the pre-trip inspection because
- You don't want to be a distracted driver, so you
- Which of the following is a key steering component?
- During your pre-trip test, when examining hoses with the instructor, you need to look for
- Which of the following should you NOT do if you experience a tire failure?
- What is the gross vehicle weight (GVW)?
- Which of these is NOT part of the basic method for shifting up?
- What is the best way to figure out how many seconds of following distance you have?
- Before transporting a sealed load, you must check
- Why should you cover your cargo?
- Always try to back toward the driver's side because
- You should inspect wheel bearing seals for
- What might happen if you swing wide to the left before you turn right?
- In which of the following two situations should you downshift?
- It has just reached freezing. Which of the following areas may be slippery?
- How long does it take a typical tractor-trailer to clear a double railroad track?
- Do empty trucks have the best braking?
- What is the definition of a hazard?
- Total stopping distance equals
- What is a common cause of tire fires?
- On wet roads, you should reduce your speed by
- If the engine is not overheated, is it completely safe to remove the radiator cap?
- When you start to drive down a steep downgrade, which of the following should influence your choice of speed?
- An anti-lock braking system (ABS) will
- To help you stay alert and safe while driving, you should
- If you double your speed, how much more distance will it take to brake to a stop?
- While driving at night, which lights should you use as often as you can?
- If you are confronted by an aggressive driver, what should you do?
- To maintain alertness on your trips, you should
- How many tie-downs are required for a 20-foot load?
- The most important hand signal that you and a helper should agree on is
- On which of the following types of fires should you NOT use a B:C fire extinguisher?
- Hazardous materials placards are
- How can you determine if your vehicle is equipped with an anti-lock braking system (ABS)?
- Which of the following is NOT something you should check during a trip?
- Where should you place your warning devices if you must stop on a one-way road or divided highway?
- How can you start moving without rolling backward?
- Why is it important to use a helper when backing?
- What will help a drunk sober up?
- How often must you stop to check your cargo while on the road?
- Which is NOT one of the four basic skills that operating a commercial motor vehicle requires?
- What can you do at an accident scene to help avoid another accident?
- Which of the following statements about retarders are correct?
- Starting the engine and inspecting the cab involves each of the following tasks EXCEPT
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