Free New Hampshire CDL Practice Test — Updated for 2025

Getting your Commercial Driver’s License in New Hampshire starts with the written knowledge tests. This page gives you free, simple New Hampshire CDL practice tests for every major section: General Knowledge, Air Brakes, Combination Vehicles , Hazmat, Passenger, School Bus, Tankers, and Doubles/Triples. You’ll see one question at a time, get instant right/wrong feedback, and read a short explanation after each answer. Use these tests to learn the rules, fix weak spots fast, and build real confidence before you walk into your exam.

Nevada CDL at a Glance (Plain-English Summary)

  • Age:
    You must be 18+ to drive within the state (intrastate) 21+ to drive interstate, carry passengers, or haul hazardous materials.
  • license :
    You need a valid New Hampshire driver’s license and a clean driving record.
  • Medical card:
    Most CDL applicants must have a current DOT Medical Examiner’s Certificate.
  • Knowledge tests → CLP:
    Pass the written exams for your CDL class (A/B/C) and any endorsements to get your Commercial Learner’s Permit (CLP).
  • Skills test:
    Hold your CLP for at least 14 days, then take the pre-trip, basic control, and road test.
  • ELDT:
    Federal Entry-Level Driver Training applies to new Class A/B and H/P/S applicants before the skills test.
  • Hazmat:
    Requires a TSA background check in addition to the Hazmat written test.
  • Where to test:
    CDL testing is handled by the New Hampshire Division of Motor Vehicles (DMV) or approved third-party testers.
  • Tip:
    Always verify the latest CDL fees and testing information with the New Hampshire DMV before scheduling.

What’s on the New Hampshire CDL Knowledge Tests

General Knowledge

— vehicle inspections, driving safety, space/speed management, emergencies, road sharing, and cargo rules.

Air Brakes

— parts, dual systems, warning lights, spring brakes, downhill control, and stopping distance.

Combination Vehicles

— coupling/uncoupling, skids, jackknife prevention, and rollover risks.

Hazmat (H)

— classes, placards, loading, segregation, parking, emergency response, and security awareness.

Passenger (P) & School Bus (S)

— loading/unloading, mirror checks, emergencies, student safety, and evacuation.

Tankers (N)

— liquid surge, slosh, rollover risks, and safe handling.

Doubles/Triples (T)

— converter dollies, coupling procedures, and trailer inspection.

Pre-Trip

— all key vehicle systems: engine, suspension, brakes, tires, lights, coupling, and in-cab checks.

Required for All CDL Drivers

These tests are mandatory for all Commercial Driver's License applicants

About General Knowledge Tests

Basic rules, regulations, and safe driving practices for commercial vehicles

General Knowledge Test 1

Basic CDL knowledge and traffic laws

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 2

Vehicle safety and inspection procedures

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 3

Driving techniques and hazard awareness

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 4

Transportation of cargo and passengers

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 5

Emergency procedures and vehicle maintenance

📝 50 Questions 🎯 80% to pass
Start Test

General Knowledge Test 6

Final comprehensive review test

📝 50 Questions 🎯 80% to pass
Start Test
About Air Brakes Tests

Air brake systems, inspection, and operation procedures

Air Brakes Test 1

Basic air brake system components and operation

📝 25 Questions 🎯 80% to pass
Start Test

Air Brakes Test 2

Air brake inspection and testing procedures

📝 25 Questions 🎯 80% to pass
Start Test

Air Brakes Test 3

Emergency procedures and troubleshooting

📝 25 Questions 🎯 80% to pass
Start Test

Air Brakes Test 4

Advanced air brake systems and safety

📝 25 Questions 🎯 80% to pass
Start Test
About Pre-Trip Inspection Tests

Vehicle inspection procedures and safety checks

Pre-Trip Inspection Test 1

Engine compartment and cab inspection

📝 20 Questions 🎯 80% to pass
Start Test

Pre-Trip Inspection Test 2

Exterior vehicle inspection

📝 20 Questions 🎯 80% to pass
Start Test

Pre-Trip Inspection Test 3

Trailer and coupling system inspection

📝 20 Questions 🎯 80% to pass
Start Test

Endorsement Tests

Additional certifications for specialized commercial driving

About Combination Vehicles Tests

Tractor-trailers, truck and trailer combinations

Combination Vehicles Test 1

Coupling and uncoupling procedures

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 2

Inspection of combination vehicles

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 3

Driving combination vehicles safely

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 4

Backing and maneuvering techniques

📝 20 Questions 🎯 80% to pass
Start Test

Combination Vehicles Test 5

Advanced combination vehicle operation

📝 20 Questions 🎯 80% to pass
Start Test
About Hazmat Tests

Hazardous materials transportation and safety

Hazmat Test 1

Hazmat classification and identification

📝 30 Questions 🎯 80% to pass
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Hazmat Test 2

Loading and handling procedures

📝 30 Questions 🎯 80% to pass
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Hazmat Test 3

Documentation and placarding

📝 30 Questions 🎯 80% to pass
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Hazmat Test 4

Emergency response and safety procedures

📝 30 Questions 🎯 80% to pass
Start Test
About Passenger Vehicles Tests

Buses and vehicles designed to transport passengers

Passenger Vehicle Test 1

Pre-trip inspection for passenger vehicles

📝 20 Questions 🎯 80% to pass
Start Test

Passenger Vehicle Test 2

Loading and unloading passengers

📝 20 Questions 🎯 80% to pass
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Passenger Vehicle Test 3

Passenger safety and emergency procedures

📝 20 Questions 🎯 80% to pass
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Passenger Vehicle Test 4

Special situations and regulations

📝 20 Questions 🎯 80% to pass
Start Test
About School Bus Tests

School bus operation and student transportation safety

School Bus Test 1

Loading and unloading students

📝 20 Questions 🎯 80% to pass
Start Test

School Bus Test 2

Emergency exits and evacuation procedures

📝 20 Questions 🎯 80% to pass
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School Bus Test 3

Student management and safety

📝 20 Questions 🎯 80% to pass
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School Bus Test 4

Special hazards and situations

📝 20 Questions 🎯 80% to pass
Start Test
About Tanker Vehicles Tests

Liquid cargo transportation and tank vehicle operation

Tanker Vehicle Test 1

Tanker vehicle inspection and safety

📝 20 Questions 🎯 80% to pass
Start Test

Tanker Vehicle Test 2

Driving techniques for liquid cargo

📝 20 Questions 🎯 80% to pass
Start Test

Tanker Vehicle Test 3

Loading, unloading, and emergency procedures

📝 20 Questions 🎯 80% to pass
Start Test
About Doubles/Triples Tests

Double and triple trailer combinations

Doubles/Triples Test 1

Coupling and inspection procedures

📝 20 Questions 🎯 80% to pass
Start Test

Doubles/Triples Test 2

Driving techniques and safety

📝 20 Questions 🎯 80% to pass
Start Test

Doubles/Triples Test 3

Emergency procedures and troubleshooting

📝 20 Questions 🎯 80% to pass
Start Test

FAQs — New Hampshire CDL

Additional certifications for specialized commercial driving

Q1- Who needs a CDL in New Hampshire?

Drivers operating vehicles 26,001 lb+ , towing 10,001+ lbs, carrying 16+ passengers, or hauling hazardous materials.

Q2- Minimum age for CDL in New Hampshire?

18 intrastate, 21 interstate/hazmat/passenger.

Q3- Is a DOT medical card required?

Yes, most CDL holders must have a valid medical certificate.

Q4- ELDT requirement?

Entry-Level Driver Training , required before taking the CDL skills test for Class A/B and for H, S, or P endorsements.

Q5- CLP holding period?

Hold your CLP at least 14 days before testing.

Q6- Where do I test?

At the New Hampshire DMV or approved third-party test sites.

Q7- Passing score?

Typically 80% or higher to pass.

Q8- Hazmat background check?

Yes — TSA clearance required before adding Hazmat endorsement.

Q9- What to bring on test day?

Driver’s license, CLP, medical card, ELDT proof, and a proper test vehicle.