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

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

2 / 40

Select the true statement in regards to your brake function when your ABS fails

3 / 40

What should you do if you start a trailer skid?

4 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

5 / 40

What is the service air line controlled by?

6 / 40

Which of the following must be closed while the bus is in motion?

7 / 40

The safety valve is usually set to open at:

8 / 40

Select the true statement about seeing ahead.

9 / 40

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

10 / 40

How do you know when your brakes are fading?

11 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

12 / 40

Forward and back surge is powerful in this type of tanker.

13 / 40

Your rig should be parked on__to uncouple double trailers.

14 / 40

The object that doesn't get checked at the side of the trailer is the:

15 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

16 / 40

A commercial motor vehicle (CMV) is defined as:

17 / 40

Which signals may be used to warn of a stopped vehicle that contains explosives?

18 / 40

Select the true statement about empty trucks:

19 / 40

What does the amount of liquid allowed in the tank depend on?

20 / 40

When fueling a placarded vehicle, someone must always be:

21 / 40

Wet brakes can cause _____.

22 / 40

What method should be used to test that the air is flowing to all the trailers?

23 / 40

How far away are you required to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?

24 / 40

A driver of a tanker should use an escape ramp when _____.

25 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

26 / 40

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

27 / 40

How high should you crank the landing gear?

28 / 40

How do you test the trailer service brakes?

29 / 40

When backing your vehicle, which of the following is NOT recommended

30 / 40

The basic description of a hazardous material includes the hazard class, the identification number, and the proper shipping name. Which one must appear first on the shipping paper?

31 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

32 / 40

If your bus is equipped with an emergency exit door, it must:

33 / 40

Water is drained from the compressed air tanks because:

34 / 40

Select the true statement:

35 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

36 / 40

What are some things you should check on the front of your vehicle when doing the walk-around inspection?

37 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

38 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

39 / 40

If the hazardous materials are classified as FORBIDDEN you should:

40 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

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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.