new jersey
CDL Practice Test

Welcome to the CDL practice test site for New Jersey. Questions from these tests cover rules and regulations in the NJ CDL manual. These questions are written to prepare you for the official NJ CDL test as you look to obtain your New Jersey CDL. You are welcome to take these New Jersey CDL permit practice tests as many times as you like as all of the tests on this site are 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

Tankers used to transport hazardous materials on vehicles must be marked with:

The date of manufacture.

The chemtrec phone number.

The owner's puco or icc number.

The un or na id number of the product.

2 / 40

Start by___when coupling.

coupling the tractor to the second trailer

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

backing the converter dolly under the second trailer

having the second trailer against the dock

3 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

engine brake system

none of the answers listed

lock brake system

service brake system

4 / 40

How should the hand valve be used?

only when the trailer is loaded to its maximum weight

only when accompanied by the service brakes

only when accompanied by the foot brake

to test the trailer brakes

5 / 40

You should follow the posted speed limits for curves and be aware of:

The posted speed limit may be too high for safety.

The higher center of gravity on a tank truck.

All answers listed.

A rollover may occur even when driving at the posted speed limit.

6 / 40

What is always required before loading, driving, or unloading a tanker?

Registration of driving plan

An inspection

Shift into park

Clean the vehicle

7 / 40

What is a passive railway crossing?

The type of crossing on which the driver does not have to stop.

The type of crossing with no cross buck sign.

The type of crossing, which does not have any type of traffic control device.

The type of crossing where you can pass the tracks without stopping.

8 / 40

Which of the following is a necessary qualification for non-bulk packaging?

All of these answers are necessary qualifications.

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

9 / 40

Which of the following is a recommended procedure when unloading the students?

Put the transmission in neutral gear and put on the brakes.

Tell students to remain seated until they are told to exit.

Position yourself outside of the bus in front of crossover mirror to supervise unloading.

Let the students begin moving to the front of the bus before it's fully stopped to maximize efficiency.

10 / 40

When arriving at the destination announce:

The location.

All of these answers are correct.

The reason for stopping.

The next departure time.

11 / 40

Select the true statement about seeing ahead.

many individuals do not look far enough ahead while driving

good drivers will shift their attention from far and near and back and forth

all answers listed

you should look up to 1/4 mile ahead when driving at highway speeds

12 / 40

What is the next step after securing the bus when you have an unruly child on board?

Remove the student from the vehilce for the safety of the other children.

Call school administrator or the police to remove the student.

Stand up and speak respectfully to the offender, if a change of setting is needed, have the student move to a seat near you.

Unload the student at the next stop.

13 / 40

What should you hook up before backing a tractor to a trailer for coupling?

the safety bar

the electrical service line

there is nothing to be hooked up

the service and emergency air lines

14 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

the vehicle is manufactured after 2005

the vehicle is manufactured after 1990

the vehicle is manufactured after 2001

the vehicle is manufactured after 1998

15 / 40

Select the true statement about tractor protection valve:

it provides the air supply to the brake system

it is closed by the parking brakes

if the air supply drops to a certain level it will automatically close itself

all of these answers are correct

16 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

17 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

a guide explaining what materials can be hauled together in the same vehicle and a guidebook for firefighters, police, and industry workers on how to protect themselves and the public from hazardous materials

a guide explaining what materials can be hauled together in the same vehicle

none of these answers are correct

a guidebook for firefighters, police, industry workers, truck drivers, dock workers, and shippers on how to protect themselves and the public from hazardous materials

18 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

no matter how you turn the steering wheel, the rig will continue in a straight line

there will be a trailer jackknife

the rig will slide sideways but stay in a straight line

nothing will occur

19 / 40

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

about 100 feet in front of your vehicle

on the other side of a divided highway

within 10 feet of the front or rear corners

about 100 feet behind your vehicle

20 / 40

When inspecting the ______you are making sure that the lines and hoses are not chafed, cut, pinched, or dragged against tractor parts.

mud flaps

lifts/door/ties

air brake lines

electric/air lines

21 / 40

Why does it take special skills to haul a tank vehicle?

It is top heavy.

All of the answers listed.

There is a high center of gravity.

The weight of the load is high up off the road.

22 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

you should hear air escape from the open valve

none of the answers listed

the emergency air line will release air

the service brakes will move to a fully applied position

23 / 40

Select the factor that has no effect on how much liquid you can carry:

How much the liquid will expand in transport.

The liquid's weight.

The legal amount of weight you can carry of any particular liquid.

The density of the liquid.

24 / 40

To transport cargo safely, which of these are you NOT responsible for?

inspecting the cargo

ensuring the freshness of sealed cargo

making sure that cargo is properly secured

recognizing possible overloads

25 / 40

Where is compressed air stored?

in the compartment for the engine

in the hose lines

in the gasoline tank

in the storage tank

26 / 40

Under which two special conditions should you downshift?

before entering a curve and before going up a hill

if there is an accident and in sudden heavy rain

before starting down a hill and before going up a hill

before starting down a hill and before entering a curve

27 / 40

A vehicle placarded for Division 1.1, 1.2, or 1.3 explosives:

May never be left unattended under any condition.

May not be parked on the cosignee's property.

May be left unattended in a safe haven.

May never be parked on private property.

28 / 40

Select the true statement about empty trucks:

empty trucks stop in the same distance as a fully loaded truck

empty trailers are easier to stop because there is not cargo shifting

they have a smaller stopping distance than full trailers

they have poor traction due to wheel lockup and bouncing

29 / 40

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

the vehicle has lost braking power

only in ideal conditions

only when it's raining

when the tanks has bulkheads

30 / 40

What might happen if you swing wide to the left before you turn right?

all of these answers are correct

someone might try to pass you on your right

you might damage your leaf springs

someone might try to pass you on your left

31 / 40

The bolst, brackets, or bushings that attach the air bag and/or spring to the vehicle and axle frame are _____.

lug bolt

spring mounts

shock dampeners

none of the answers listed

32 / 40

What does it mean when the safety valve releases air?

pressure has passed 150 psi

all of these answers are correct

there is too much air in the air compressor

you need it to have it checked out by a mechanic because something is wrong

33 / 40

Select the true statement about what the Air Compressor Governor controls:

it controls when air is released from the storage tank

it controls when the warning system is activated

it controls when the brakes will be applied

it controls when the air compressor pumps air into the storage tanks

34 / 40

You should___when driving down a long steep hill.

use the engine brakes only

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

35 / 40

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

this is not recommended because it may result in injury

this is not recommended as it could could cause damage to the pintle hook

this is recommended as it is standard procedure

this is recommended because it keeps the trailer from tipping over

36 / 40

If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?

At least five feet

At least half a mile

At least twenty feet

At least ten feet

37 / 40

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

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 the tractor ahead gently with the trailer brakes locked down

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

38 / 40

How should you inspect a converter dolly?

as if it is cargo

as if it is an axle with a fifth wheel

as if it is an engine

as if it is a trailer

39 / 40

Select the true statement about baffled tankers:

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

None of the answers listed.

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

It has separate tanks.

40 / 40

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

there is a huge fire risk

the abs will need to be repaired but the brakes will function normally

you will have no control over your truck as the brakes will not be functioning

you will need to pull over immediately

Your score is

The average score is 0%

3.6/5 - (5 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A new jersey Commercial Drivers License

To be eligible for a CDL in New Jersey, applicants must be at least 18 years old to operate within state lines and must be at least 21 to drive a commercial vehicle across state lines. To be eligible to drive a commercial vehicle in New Jersey, applicants must provide verification that they are medically fit to operate a commercial vehicle. New Jersey applicants must pass a vision test and have 20/40 vision in each eye.

All applicants must submit the following documents when they apply for a CDL.

(Form MCSA-5876) Medical Examiner’s Certificate
CDL Holder Self-Certification Form

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in New Jersey. Applicants must possess a basic New Jersey Class D driver’s license.

New Jersey CDL Endorsements

H – Hazmat Vehicles
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Towing a Double or Triple Trailer

Hit the Open Road

new jersey CDL License Test Tips

Every New Jersey CDL applicant must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the New Jersey test, applicants must score 80 percent or higher. There are additional tests for applicants who want to drive specialized commercial vehicles. The New Jersey skills test can be taken 20 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans who were discharged within 12 months of completing the CDL application and active military members can have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must show proof of military enlistment or discharge or have operated a motor vehicle equivalent to a commercial motor vehicle in the military within 12 months of the application date. In addition, applicants must possess a valid New Jersey driver’s license and submit an application for a Military Skills Test Waiver that is signed by the commanding officer.

Additional Information

Information on the New Jersey Motor Vehicle Commission

The New Jersey Motor Vehicle Commission provides oversight for the CDL license requirements in New Jersey. To get more information contact them via:

Website: https://www.state.nj.us/mvc/drivertopics/cdl.htm

Phone: 609.292.6500

Additional New Jersey CDL Helpful Links

Please use the links below to access more valuable New Jersey CDL testing resources and to learn more about practice driving tests for the state of New Jersey.

new jersey CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A new jersey Commercial Drivers License

Hit the Open Road

new jersey CDL License Test Tips

Additional Information

Information on the New Jersey Motor Vehicle Commission

Additional New Jersey CDL Helpful Links

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