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 driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

when it is raining

never

whever you feel like it

in ideal conditions

2 / 40

A minimum tread depth of 2/32 inch is required for:

Parking axle tires.

Driving axle tires.

Non-steer axle tires.

Donut tires.

3 / 40

The brake pushrod should not move more than____for manual slack adjusters.

1-2 inches while the brakes are set

movement is not allowed

an inch when pulled by hand with the brakes released

checking is not required in vehicles built after 1994 as they have automatic slack adjusters

4 / 40

Which of the following is a key steering component?

leaf spring

gear box

torque rod

bearing plate

5 / 40

You must be alert for road hazards so that:

You can help impaired drivers.

Accident reports will be accurate.

You will have time to plan your escape if the hazard becomes an emergency.

Law enforcement personnel can be called.

6 / 40

Select the true statement in regards to converter dollies:

they typically have small braking power because of their size

they typically require a hand converter

they typically have a lot of stopping power because of their size

they typically do not have spring brakes

7 / 40

For what reason do you keep the starter switch key in your pocket during the pre-trip inspection?

you will need it to open the side box

so you don't lose it

so no one moves the vehicle while you are inspecting underneath it

you will need it to inspect the trailer

8 / 40

You should___when driving down a long steep hill.

release the brake once the vehicle is traveling 5 mph below the safe speed

repeatedly pump the brake pedal

begin braking once the vehicle is 10 mph above safe speed

use the engine brakes only

9 / 40

The trailer should be lowered so that _____.

it is slightly raised when the tractor is backed under it

the trailer is high above the fifth wheel

you are able to use the landing gear to make adjustments

the tractor comes in contact with the nose of the trailer

10 / 40

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

Only when the vehicle does not require placards.

Never.

Only when the shipment does not cross state lines.

Only in the event of a federally declared emergency situation.

11 / 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?

about 1/4 mile for open highway driving

about 12-15 seconds

about 1 block for city driving

about 5 car lengths on the highway

12 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

A gas mask.

The written route plan.

None of these answers are correct.

The carrier's insurance policy.

13 / 40

Alcohol evaporators in some air brake systems help to:

decreases the risk of water in the air brake valves in cold weather

it removes fuel from the air lines

decrease the chances of ice in the air brake valves in cold weather

cleans out oil from the air lines

14 / 40

When inspecting your bus, you must make sure that:

Emergency exit handles are secure.

Every handhold and railing is secure.

Rider signaling devices are working.

All of these answers are correct.

15 / 40

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

downshift

put the gears in neutral

look for an escape ramp or an escape route

pump the brake pedal

16 / 40

Select the statement that is not part of the air-brake system:

clutch brake system

service brake system

parking brake system

emergency brake system

17 / 40

The gauge that indicates normal or increasing lubrication pressure to prevent engine seizure, failure or breakdown is:

Voltmeter

Coolant system

Oil pressure

Power steering

18 / 40

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

Just dangerous placards are required.

Poison 23 and flammable gas 21.

None, you cannot load these materials together.

Poison 23 and dangerous.

19 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

In order to see if small vehicles are driving in the bus blind spots.

In order to observe the danger zones around the bus and look for the students, traffic, and other objects in this area.

In order to observe the danger zones around the bus.

In order to clear up blind spots around the bus.

20 / 40

Make sure that_____before you back under a trailer.

the air brakes are in an off position

the air supply knob has been pulled out

the air supply knob has been pushed it

the trailer brakes have been locked

21 / 40

What will happen right away should the service air line come apart but the emergency line is intact while driving a combination vehicle?

the emergency tractor brakes will activate

nothing will occur until you try to use the brakes

the trailer's air tank will leak through the one line

you will come to a complete stop

22 / 40

This gauge will indicate if the generator or alternator is charging:

Oil pressure

Coolant

Gas tank

Voltmeter/ammeter

23 / 40

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

only use the braking that is necessary to safely stay in control of the vehicle

you should drive at a higher speed to keep the trailer in line

you should brake in the same manner regardless of what you are driving

you should monitor the tractor and trailer as you decrease your speed to keep control

24 / 40

Start by___when coupling.

coupling the converter hook to the pintle tongue of the first trailer

having the second trailer against the dock

backing the converter dolly under the second trailer

coupling the tractor to the second trailer

25 / 40

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

the trailer may tip to the side

the queen pin may fall off

all answers listed

it may not correctly couple

26 / 40

Select the load of the trailer that will require the shorter distance to stop.

a half loaded trailer

a 1/3 loaded trailer

an empty trailer

a fully loaded trailer

27 / 40

The pintle hook should be_____ and the converter dolly air tank drain valve is___when doing a walk around inspection of a triple or double trailer.

latched, closed

free, open

latched, open

free, closed

28 / 40

A portable tank differs from a cargo tank in that ______.

cargo tanks are bulk containers, which are not permanently attached to a vehicle

none of these answers are correct

portable tanks are bulk containers, which are permanently attached to a vehicle

portable tanks are bulk containers, which are not permanently attached to a vehicle

29 / 40

How do you test the trailer service brakes?

apply pressure to the brake pedal

test the brakes out while driving at 5 mph

apply the hand control and check to see if you feel the trailer brakes come on

release air to the spring brakes

30 / 40

To avoid rollover when going through a curve, the best thing to do is:

Drive at a speed higher than the posted speed limit.

Pump the brakes through the curve.

Ride the brakes through the curve.

Drive at a speed below the posted speed limit.

31 / 40

A driver of a tank vehicle should take curves, off ramps, and on ramps at a speed lower than the posted speed limit.

True but only in ideal conditions

True

False

True but only in rainy conditions

32 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

the engine brake to kick on

air leaving the open valve

the service brakes more to a fully applied position

the emergency line valve to release air

33 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

care for the injured

protect the area

gather the contact information of all the drivers involved

notify authorities

34 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

narrow

low

high

long

35 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

to make sure the vehicle will make your destination

safety for yourself and other road users

because other drivers do it

to make sure nothing has been stolen from the vehicle

36 / 40

This object should not be worn dangerously thin where visible.

The brake chambers

The brake linings

The air system lines

All answers listed

37 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

6 psi a minute

5 psi a minute

3 psi a minute

2 psi a minute

38 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

none of the answers listed

see if the air pressure drops more than 4 lbs in a minute while holding it down for a full minute in a combination vehicle

both of the answers listed

see if the air pressure drops more than 3 lbs in a minute while holding it down for that full minute in a single vehicle

39 / 40

Select the true statement about emergency steering and tankers:

It is easier to counter steer than other vehicles.

None of the answers listed.

Have a firm grip on the steering wheel before making quick movements of the steering wheel.

Do not apply the brakes when making quick movements of the steering wheel.

40 / 40

Which trailer is most likely to turn over when you make a sudden turn while pulling doubles?

there is an even chance for either trailer

the rear trailer is twice as likely

trailers will never turn over

the front trailer is twice as likely

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:

Website: https://www.nh.gov/safety/divisions/dmv/driver-licensing/commercial/apply.htm

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.

new hampshire CDL Practice Test