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

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

By another bus with its four-way flashers on.

If getting off the bus would be more risky for the riders.

By a 27,000 lbs gvwr or larger tow truck.

If the distance is less than 500 yards.

2 / 40

There must not be more than_____for engine compartment belts.

1/2 inch of play at the end of the belts

1/2 inch of play at the center of the belt

3/4 inch of play at the center of the belt

1/4 inch of play at the ends of the belt

3 / 40

A placarded vehicle must carry what type of fire extinguisher?

One with a rating of 5 a/b minimum.

One with a rating of 10 b/c minimum.

One with a rating of 5 b/c minimum.

One with a rating of 10 a/b minimum.

4 / 40

Why should you know the outage?

Just in case you become a contestant in a trivia competition.

Heavier liquids don't require outage.

Liquids expand different amounts.

Baffles are not always permitted with certain types of liquids.

5 / 40

Which of the following is the proper definition of a cargo tank?

A bulk container not permanently attached to a vehicle.

A bulk container permanently attached to a vehicle.

None of these answers are correct.

A bulk container which can be securely affixed to a vehicle.

6 / 40

Remember to____when connecting the converter dolly to the rear trailer.

lock the trailer brakes

check the trailer height

ensure that the landing gear is slighty off of the ground

all answers listed

7 / 40

Which of the following is a key steering component?

gear box

bearing plate

leaf spring

torque rod

8 / 40

What does the air compressor governor control?

when the air is taken out of the hoses

when air pressure is applied to the brakes

when the valve system releases pressure

when air is pumped into the air tanks

9 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

2 psi in a minute

4 psi in a minute

3 psi in a minute

5 psi in a minute

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

Is it mandatory that all vehicles with air brakes have low air pressure warning signals?

for large vehicles only

yes

for small vehicles only

12 / 40

Select the true statement in regards to crossing your air lines on a new trailer with spring brakes

you will be unable to realse the trailer brakes

you will be unable to release the tractor brakes

there is no way to know if there is an issue

you will have brakes that are not operational

13 / 40

Select the true statement about baffled tankers:

It has hollow balls in it to slow the motion of the liquid in the trailer.

It has walls with holes inside for liquid to flow through.

None of the answers listed.

It has separate tanks.

14 / 40

When accelerating:

"hammer down" when your wheels start to spin

do not engage the clutch before you take your foot off the brake

always use the parking brake to slow down

speed up smoothly and gradually and avoid jerking

15 / 40

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

Keep checking the rear view mirror so you can see what happened and report to the principal.

Pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them.

Have the unruly students move to the front of the bus.

Yell loudly for the students to sit down and behave themselves.

16 / 40

Never refuel your bus:

With a higher grade of fuel.

Without a static chain.

In a closed building with passengers on board.

With any of the windows open.

17 / 40

When inspecting your bus, you must make sure that:

Every handhold and railing is secure.

Rider signaling devices are working.

Emergency exit handles are secure.

All of these answers are correct.

18 / 40

How often should you check the cargo you are transporting?

all of these answers are correct

every 150 miles or every three hours

within the first 50 miles after beginning a trip

after every break you take during driving

19 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

true

false

there is an equal chance for trailers to tip

trailers never tip

20 / 40

Make sure that_____before you back under a trailer.

the air supply knob has been pushed it

the air brakes are in an off position

the air supply knob has been pulled out

the trailer brakes have been locked

21 / 40

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

the heaviest trailer

the last trailer of a triple

the first trailer of a triples

the last trailer of a double

22 / 40

When would you lock some emergency roof hatches in a partly open position?

Whenever you enter a tunnel

Never

First day of spring

For fresh air

23 / 40

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

all of these answers are correct

a buzzer

a wig wag mechanical arm

red light

24 / 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.

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 clear up blind spots around the bus.

25 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

Stainless steel

Non-ferrous metal

Carbon steel

All of these answers are correct

26 / 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?

Poison 23 and flammable gas 21.

Poison 23 and dangerous.

Just dangerous placards are required.

None, you cannot load these materials together.

27 / 40

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

Apron

Metal frame

Locking pins/tandem release arm

Suspension system

28 / 40

The best way to test if the spring brakes come on automatically is to:

all of these answers are correct

apply pressure on and off the brake pedal until the manufacturer's low psi specification has been met for the spring brakes to deploy

apply pressure on and off the brake pedal until the parkng brake valve pops out on tractor-trailer vehicles

apply pressure on and off the brake pedal until the parking valve pops out on single vehicles

29 / 40

Select which is not a mandatory emergency equipment:

6 fuses, 3 red reflective triangles, or 3 liquid burning flares.

A rated and properly charged fire extinguisher.

Tire changing equipment.

Extra electrical fuses.

30 / 40

Select the true statement in regards to brake drums or discs:

they should always be kept well-greased up

they are not allowed to have any cracks

they should not have cracks that are longer than half the width of the friction area

the linings should fit loosely around the brake shoe

31 / 40

Select the true statement:

wait to brake heavy vehicles for as long as you can

a bobtail tractor will take longer to stop than a combination vehicle that is loaded to the max

light vehicles require more braking power than heavier vehicles

you should always ride the brakes

32 / 40

Buses may NOT have recapped or regrooved tires:

On front wheels.

On the outside rear wheels.

When it's been raining.

Anywhere except on the front wheels.

33 / 40

Bus drivers must have a commercial driver license if they drive a vehicle designed to seat more than:

16 or more persons, including the driver.

20 or more persons, excluding the driver.

15 or more persons, including the driver.

10 or more persons, including the driver.

34 / 40

The emergency air line is used to:

provide back up air pressure

engage the trailer brakes when there is an air pressure loss

to alert emegency services when there is a problem

engage the tractor's front brake when there is air pressure loss

35 / 40

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

all of these answers are correct

someone could steal the truck

it could damage the starting mechanism

someone could start and move the truck

36 / 40

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

15 seconds

13 seconds

10 seconds

8 seconds

37 / 40

You can be sure air is supplied to the second trailer by:

while driving at 10 mph apply the hand valve you should stop at the same in the same distance as a single trailer driving at 5 mph

going to the rear of the second trailer and open the emergency line shut off

you should get out and listen for air flowing through the lines

watch the air gauge for a drop of 30 psi

38 / 40

The main reason you should pull the dolly out from under a trailer before disconnecting it from the trailer in front is:

it is possible that the dolly tow bar could fly up making it difficult to re-couple

removing the dolly before uncoupling is not the correct procedure

to provide additional lateral stabilization to the front trailer

so the rear-trailer's air brake system will stay charged and keep the trailer wheels locked to prevent rolling

39 / 40

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

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 always keep your vehicle to the right side of the lane

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

40 / 40

You should check your mirrors while making a lane change:

after you have completed the lane change

all answers listed

after you signal your intent to change lanes

right after you start the lane change

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

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