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

Which seats not securely fastened to the bus are usually allowed?

2 / 40

Drivers placard their vehicle to _____ the risk.

3 / 40

Select what you should not do when coupling the glad hands.

4 / 40

Where are shut-off valves located?

5 / 40

Select the inappropriate way to test for the low pressure warning signal.

6 / 40

Another term for a smooth bore tank is:

7 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

8 / 40

A slack adjuster is:

9 / 40

What do you do first during step 3 of starting the engine and inspecting the inside of the cab?

10 / 40

Overhead inside mirror is used to:

11 / 40

While driving at night, which lights should you use as often as you can?

12 / 40

What might happen if a trailer is too high when you try to couple?

13 / 40

Why is understanding the loading and unloading procedures so critical?

14 / 40

The correct trailer height when coupling the rear trailer is:

15 / 40

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

16 / 40

Select the two things that are important in preventing a rollover:

17 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

18 / 40

Select the correct description for a bulkhead tank.

19 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

20 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

21 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

22 / 40

Which of the following is a reason to evacuate the school bus?

23 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

24 / 40

You should_____to uncouple the converter dolly.

25 / 40

Select which vehicles are required to have a low air pressure warning signal:

26 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

27 / 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:

28 / 40

To be sure that air is supplied to the second trailer:

29 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

30 / 40

It is good practice to_____when uncoupling.

31 / 40

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

32 / 40

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

33 / 40

Select the statement of what you should not do if you are required to drive through flowing water or deep puddles.

34 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

35 / 40

You should check your mirrors while making a lane change:

36 / 40

Buses are prohibited from carrying all of the following hazardous materials except:

37 / 40

A commercial motor vehicle (CMV) is defined as:

38 / 40

How should the hand valve be used?

39 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

40 / 40

Start by___when coupling.

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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.