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

Why are you required to take an exam about air brakes?

you cannot receive a CDL at all otherwise

all trucks have air brakes

it is a federal requirement

you would have to get a CDL with a restriction otherwise

2 / 40

Which of the following is NOT a part of the steering system?

steering knuckle

main spring

tie rod

hydraulic fluid reservoir

3 / 40

Puddles or dripping fluids from the underside of the transmission and engine may indicate:

Problems with the water pump

A leak from the engine

All of these answers are correct

A leaking line or hose

4 / 40

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

Carried in a metal box

Stored in the passenger compartment

Labeled

All of these answers are correct

5 / 40

You must first______to supply air to the trailer.

cross the air lines to check for the presence of leaks

pull out the tractor protection valve

turn off the engine so you can hear the brakes

push in the tractor protection valve

6 / 40

Where is compressed air stored?

in the gasoline tank

in the hose lines

in the compartment for the engine

in the storage tank

7 / 40

Select the true statement in regards to quick steering movements and double trailers:

you should apply a firm pressure to the brake pedal at the same moment you do quick steering movements

nothing will occur

it is easier to tip doubles and triples from quick steering movements than other vehicles

it is easier to countersteer doubles/triples than other vehicles

8 / 40

Select how brakes work on long, steep downgrades:

they are a supplement to the braking effect of the engine

it is the main braking mechanism

it does not do anything

it's the main braking mechanism with the engine braking system available for emergency situations

9 / 40

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

the length and weight of the vehicle

drive slowly around turns and keep the cargo as close to the ground as possible

maintaining properly inflated tires and an even load on the trailer

drive slowly around turns and keep the center of gravity of the cargo as high as possible

10 / 40

When transporting hazardous loads, you must check the tires at least:

Every 200 miles.

Twice every day.

Every two hours or 100 miles.

Every six hours.

11 / 40

______is a device that connects the service and emergency air lines between the tractor and trailer.

Service lines

Glad hands

Top off valves

Relay knife

12 / 40

Unless you_____you will feel the effects of a liquid surge.

all answers listed

make turns carefully and slowly

gradually come to a stop

haul thick liquids

13 / 40

Air tanks need to be drained:

to keep the tanks warm when not in use

air tanks should absolutely never be drained

to prevent water and oil from building up in the tank

to keep the tanks cold when not in use

14 / 40

This object is not checked at the rear of the trailer.

The mud flaps

The bumper

The header board

The back doors

15 / 40

If you do become sleepy while driving, you should _____.

roll down the windows

turn up the radio

drink caffeinated beverages

stop to sleep

16 / 40

Overhead inside mirror is used to:

See the blind spot immediately behind the bus.

See the area where students exit the bus.

Monitor traffic that approaches and enters the blind spot area.

See all of the students.

17 / 40

A battery box check is important. The battery must be secure, connection must be tight, and cell caps must be present. In addition these items should be checked:

The fluid level inside the battery.

Battery connections should not show signs of excessive corrosion, and the battery box and cover or door should not be damaged and should be secure.

Battery connection should show signs of excessive wear.

Battery connections should not show signs of excessive corrosion, but the battery box and cover or door is unimportant.

18 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

10 seconds

8 seconds

15 seconds

13 seconds

19 / 40

Select the true statement in regards to managing the space to the sides:

you should always keep your vehicle to the right side of the lane

you should try to avoid driving next to others when possible

high wind gusts will not cause any issues for doubles or triples

you should drive down the center of both lanes over the pavement markings

20 / 40

You should place the starter switch key into your pocket while you are performing the pre-trip inspection because:

someone could start and move the truck

someone could steal the truck

it could damage the starting mechanism

all of these answers are correct

21 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

Minimum of 10 feet

Minimum of 2 feet

Minimum of 5 feet

Minimum of 15 feet

22 / 40

Which of the following are some suspension system defects?

cracked or broken spring hangers

broken leaves in leaf spring

leaking shock absorbers

all of these answers are correct

23 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving with bad tires.

Driving in the mountains.

Driving on a wet surface.

Driving too fast.

24 / 40

One reason hauling liquids in tank vehciles require special care is:

Because of the movement of the liquid.

Because of uneven expansion.

Because of strong winds.

Because of the extreme weight.

25 / 40

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

the last trailer of a double

the first trailer of a triples

the last trailer of a triple

the heaviest trailer

26 / 40

What is the purpose of a baffle?

It allows you to haul loads that are mixed.

It controls the surge of liquid forward and backwards.

It stops side to side surging.

It makes it easier to clean the tanker out.

27 / 40

How do you check the connection after locking the kingpin into the fifth wheel?

pull the tractor ahead gently with the trailer brakes locked down

pull forward 25 feet, turn to the right, and then to the left

pull the tractor at a sharp right to release the trailer brakes

pull forward 25 feet, turn to the left, and then to the right

28 / 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.

None, you cannot load these materials together.

Poison 23 and dangerous.

Poison 23 and flammable gas 21.

29 / 40

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

to signal to tailgaters that they are too close to your vehicle

to alert drivers behind you that there are hazards ahead

to warn vehicles approaching you from behind that you are driving slowly

to warn drivers behind you when you need to slow down

30 / 40

The reason a bulk liquid tanker is hard to handle is:

Because the cargo has a low center of gravity.

Because of the high friction point.

Because the cargo has a high center of gravity.

Because the cargo has a high density.

31 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

The trailer may slide into the oncoming traffic.

The liquid may leak out of the tank.

The movement of the liquid may push the truck into the intersection.

The trailer may slide to the side due to the rocking motion.

32 / 40

With the controlled braking method, you _____?

apply the brakes as hard as you can without locking the wheels

apply the brakes all the way until the wheels lock up, release the brakes and apply them again when the wheels start to roll again

lightly apply braking pressure

repeatedly tap the brakes as fast as you can

33 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

By passing only the slowest vehicles.

By never passing.

By staying in the right lane if you can.

By driving faster than the other traffic.

34 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

Coolant pressure gauge

Voltmeter gauge

Oil pressure gauge

Air pressure gauge

35 / 40

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

the last trailer of a double

the last trailer of a triple

any trailer

a fully loaded trailer behind the tractor

36 / 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.

only when the vehicle has over 25,000 miles on it

false

only when the vehicle has over 60,000 miles on it

true

37 / 40

An example of a low pressure warning signal for air brakes is:

a wig wag mechanical arm

all of these answers are correct

a buzzer

red light

38 / 40

An air system that is fully charged will typically have ___ psi of pressure.

250

125

200

39 / 40

Cargo tanks ____.

are large drums temporarily attached to a vehicle

are bulk packagings permanently attached to a vehicle

are large drums used to contain hazmat that is loaded on a trailer

are tanks that the military uses to transport hazardous materials

40 / 40

Secure baggage and freight in ways that avoid damage and:

All of these answers are correct.

Allow the driver to move freely and easily.

Protect riders from injury if carry-ons fall or shift.

Allow riders to exit by any window or door in an emergency.

Your score is

The average score is 0%

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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:

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

CDL Category Practice Tests

CDL Practice Test

How To Get A new hampshire Commercial Drivers License

Hit the Open Road

new hampshire CDL License Test Tips

Additional Information

Information on the New Hampshire Division of Motor Vehicles

Additional New Hampshire CDL Helpful Links

new hampshire
CDL Practice Test