new hampshire
CDL Practice Test


Welcome to the New Hampshire CDL practice test site. Questions from these tests are designed to prepare you for the actual NH DMV CDL knowledge tests that you may have to take depending on the CDL classification and endorsement that you are looking to obtain. You are welcome to take these CDL practice test questions as many times as you like as the tests are completely free. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin.

1 / 40

Select the true statement about dual air brake systems:

2 / 40

When stopped on a divided highway where should your reflectors be placed?

3 / 40

Select which is not an engine compartement belt:

4 / 40

How much space should there be between the lower and upper fifth wheel?

5 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

6 / 40

If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?

7 / 40

The compressor is connected to the engine via _____?

8 / 40

Hazardous materials (that are not forbidden) carried on a bus must be:

9 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

10 / 40

You should follow behind other vehicles ______when traveling under 40 mph.

11 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

12 / 40

A safe haven is:

13 / 40

Select the true statement in regards to a converter dolly:

14 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

15 / 40

To transport cargo safely, which of these are you NOT responsible for?

16 / 40

What are you checking when looking at the lubrication level on a dipstick?

17 / 40

You should_____to make an emergency stop with air brakes when using the stab braking method.

18 / 40

Another term for a smooth bore tank is:

19 / 40

How do you know when your brakes are fading?

20 / 40

Which of the following statements about downshifting is NOT true?

21 / 40

This object should not be worn dangerously thin where visible.

22 / 40

What is the purpose of the supply pressure gauge?

23 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

24 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

25 / 40

Which of the following statements about overhead space is true?

26 / 40

Which is more likely to tip over due to the crack the whip effect?

27 / 40

What is the purpose of a driver placarding his or her vehicle?

28 / 40

How can you check slack adjusters?

29 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

30 / 40

The best way to describe a dual air brake system is:

31 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

32 / 40

When transporting explosives you may not park:

33 / 40

Which of the following about the front tires on a commercial bus is true?

34 / 40

Select the item that is not checked in the engine compartment:

35 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

36 / 40

You should be in the proper gear before going down a hill because:

37 / 40

Why should you use chocks when parking a trailer without spring brakes?

38 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

39 / 40

What will happen should a driver cross the air lines when hooking up the an older trailer?

40 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A new hampshire Commercial Drivers License

To be eligible for a CDL in New Hampshire, applicants must meet the following age eligibility requirements. To operate a commercial vehicle intrastate (within New Hampshire only) a driver must be at least 18 years old. To operate a commercial vehicle interstate (outside New Hampshire) a driver must be at least 21. The New Hampshire Department of Motor Vehicles requires applicants to self-certify and submit a copy of a medical certificate. New Hampshire CDL applicants must complete and submit a statement of license status. Applicants are required to pass a vision test.Applicants who are non-excepted drivers (not employed by a federal or state agency) must include a copy of their medical cards with the statement of license status. New Hampshire CDL applicants who do not meet the minimum medical requirements can apply to drive intrastate only and cannot transport hazardous materials. Drivers whose licenses have been revoked, suspended, denied or canceled are not eligible for a CDL in New Hampshire. CDL applicants cannot possess driver’s licenses in more than one state.

New Hampshire CDL Endorsements

  • H – Hazardous Material
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Towing a Double or Triple Trailer
  • X – Combination Tank Vehicle and Hazardous Materials

Hit the Open Road

new hampshire CDL License Test Tips

All CDL applicants must pass the general knowledge test and specific tests for each endorsement. Applicants must score at least 80 percent on each test. The New Hampshire skills test includes a pre-trip vehicle inspection, off-road (reversing, parking, navigating cones) and on-road driving (intersections, highways, railroad crossings). Applicants must pass each section of the endorsement tests.

Recent military veterans and enlisted military members can apply to have the skills test waived if they currently are enlisted in the military or honorably discharged from the military within the past 90 days of submitting an application. The can also get a waiver if they have operated a motor vehicle equivalent to a commercial motor vehicle in the military within the past year. Other requirements include:

  • Reside in New Hampshire.
  • Not have any alcohol-related or major driving incidents within 2 years before submitting a CDL application.
  • Complete Form DSMV 609 Application for Military Skills Test Waiver. This form must be signed by a commanding officer.

Additional Information

Information on the New Hampshire Division of Motor Vehicles

The New Hampshire Division of Motor Vehicles provides oversight for the CDL license requirements in New Hampshire. To get more information contact them via:


Phone: 603.227.4000


Additional New Hampshire CDL Helpful Links

Please use the links below to access more valuable New Hampshire CDL testing resources and to learn more about practice driving tests for the state of New Hampshire.