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

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

2 / 40

Select the true statement about dual air brake systems:

3 / 40

A disruptive passenger:

4 / 40

Front wheel brakes are good under what kind of conditions?

5 / 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?

6 / 40

At what "cut out" level does the governor stop pumping air?

7 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

8 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

9 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

10 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

11 / 40

Select the true statement about baffled tankers:

12 / 40

Students exit the bus and walk:

13 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

14 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

15 / 40

How do you check the coolant level?

16 / 40

What is the main difference between a portable tank and a cargo tank?

17 / 40

Select the true statement in regards to the braking power of spring brakes.

18 / 40

Which of the following will confirm that you are driving with anti-lock brakes?

19 / 40

Should your air compressor stop working:

20 / 40

Surge affects the handling of a tanker by:

21 / 40

What is the most important reason for doing a vehicle inspection?

22 / 40

After the initial drop, the maximum leakage rates per minute is:

23 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

24 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

25 / 40

Select the answer that is not a part of the braking process when driving a tractor-trailer combination vehicle that has ABS:

26 / 40

What is the safest way to stop unruly behavior on the bus?

27 / 40

Another term for a smooth bore tank is:

28 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

29 / 40

Before pulling away, make sure the landing gear of the trailer is:

30 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

31 / 40

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

32 / 40

The sliding mechanism and locking device for a tandem axle on trailers is:

33 / 40

The most important hand signal you should agree on with a helper is:

34 / 40

You should____to check the free play of manual slack adjusters on S-Cam brakes.

35 / 40

What are shippers trying to accomplish when they package the material?

36 / 40

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

37 / 40

Why is it dangerous to unlock the pintle hook with the dolly still under the rear trailer?

38 / 40

Under which two special conditions should you downshift?

39 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

40 / 40

This item does not need to be checked during the cab check.

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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.