NH CDL General Knowledge

It is a multiple-choice test delivered at a state licensing office, usually on a computer. You select one answer per question and receive a score when you finish. The state sets the current question count, passing score, and time limit, so check the official New Hampshire DMV site for the figure that applies to your appointment.

Most candidates who read the manual carefully pass on the first attempt. The difficulty is breadth rather than trickery: many topics, each with a few precise numbers and rules. People who skim the cargo, brake, and hours-of-service sections are the ones who struggle, because those sections carry more detail than drivers expect.

Yes, retakes are generally allowed, though the state may require a waiting period and another fee. The official body publishes the current retake rule and any associated cost, so confirm both on the state site before you rebook. Use the gap to review the sections where your score was weakest rather than retesting immediately.

Yes. The written knowledge tests come first and must be passed before you can schedule the vehicle inspection and road skills portions. You also need to hold a commercial learner's permit for the required period before the skills test, so plan the sequence early rather than booking everything at once.

Plan on several focused sessions spread over one to two weeks. Read each manual chapter, then take a practice test on that chapter the same day. Save full-length practice tests for the final days. Cramming the night before tends to fail on the numerical items, such as stopping distance and following distance, which need repetition.

Start with vehicle inspection, basic control, and braking, because those ideas reappear in later chapters. Then move to shifting, backing, and turning, followed by space management and speed. Finish with cargo, hazardous conditions, hours of service, and traffic laws. This order builds vocabulary before you meet the more rule-heavy material.

Three patterns dominate: confusing following distance rules for different speeds and conditions, mixing up brake adjustment and inspection criteria, and misreading cargo securement and weight-distribution limits. A fourth is skimming the alcohol and hours-of-service rules. Slow down on any question containing a number and read every option before choosing.

The manual includes state-specific material alongside the federal model standards, so read the whole book rather than only the general chapters. State rules on weight, equipment, and licensing can appear. The official manual is the authority; this site is an independent study aid and is not affiliated with the state.

The General Knowledge test is the base requirement, and each endorsement, such as passenger, school bus, tanker, or hazardous materials, adds its own written test. You must pass General Knowledge before adding endorsements. Check the official site for which combinations require additional knowledge tests and background checks.