New Hampshire / Common CDL knowledge

New Hampshire all-subject CDL technical study sets

92 common commercial-driving knowledge questions, with explanations after each answer. Choose a short test or focus on a topic.

Common technical study, not New Hampshire licensing rules. This practice uses an older Iowa DOT-hosted manual. It is not a verified current New Hampshire DMV manual, complete endorsement course or official examination. Read the source dates and limits.

All topics and study tools

Choose an all-subject study set

These 5 non-overlapping sets cover the original 92-question technical practice once, across the eight subjects. They are not combined endorsement examinations. The final set contains 12 real questions without padding or repeats. Use the topic pages below when you want one subject only.

All-subject Study 120 questions All-subject Study 220 questions All-subject Study 320 questions All-subject Study 420 questions All-subject Study 512 questions

Local CDL licensing responsibilities

7 separate questions cover one-license possession, employer notification, carrying the correct CDL, interstate surrender and supervised commercial learning. Existing technical sets and mixes stay unchanged; My mistakes includes both practice sets.

Practice local CDL responsibilities

Medical qualification and interstate age

8 questions cover category selection, continuing qualification, ordinary interstate age, covered intrastate examinations and waiver limits. Current New Hampshire reporting procedures and untested exemptions remain outside this study.

Practice medical qualification

Practice one CDL subject

General knowledge and cargo

24 questions · explanations and saved review

Air brakes

12 questions · explanations and saved review

Combination vehicles

12 questions · explanations and saved review

Double trailers

6 questions · explanations and saved review

Tank vehicles

6 questions · explanations and saved review

Passenger vehicles

8 questions · explanations and saved review

School bus safety

10 questions · explanations and saved review

Hazardous materials safety

14 questions · explanations and saved review

Know the limits

Technical guidance does not grant a license, endorsement, school-bus assignment or hazardous-materials permission. Follow current New Hampshire and local requirements, your vehicle manufacturer’s instructions and qualified practical training. These quizzes do not certify inspection skills, ELDT completion or safe operation of a particular vehicle.

Source dates and coverage