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

The front trailer supports should be____before driving away.

raised 1/3 of the way with the crank handle secured in its bracket

raised 1/2 way with the crank handle secured in its bracket

3 turns down from the top and the crank handle secured in its bracket

raised fully and the crank handle secured in its bracket

2 / 40

A disruptive passenger:

Should not be discharged where it would be unsafe for them.

Should not be allowed on the bus.

May be thrown off the bus.

Is not your responsibility.

3 / 40

Select the true statement:

light vehicles require more braking power than heavier vehicles

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

wait to brake heavy vehicles for as long as you can

you should always ride the brakes

4 / 40

You should turn off your engine when loading flammable liquid unless:

You are a non-smoker.

You need the engine to run the pump.

The material does not need a placard.

You are loading at night and need the headlights.

5 / 40

What is most likely to occur when the front wheels begin to skid?

The power of the surge will disconnect the tank from the truck.

A roll over will occur.

All answers listed.

You will continue heading in a straight line and moving forward no matter what direction you turn the steering wheel.

6 / 40

Where are shut-off valves located?

at the front of the trailer

at the back of the trailer

at the front and back of the trailer

either at the front or the back of the trailer

7 / 40

You should line up_____when getting ready to back under the trailer.

for the kingpin to activate on the driver's side first

about 12 degrees to the left of the trailer

directly in front of the trailer

above 12 degrees to the right of the trailer

8 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

Only in populated areas

Only if you have more than 1,001 pounds of it

Yes

9 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

4 years

2 years

3 years

1 years

10 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

it should not be used on dry roads due to road conditions

the trailer brakes will not be evenly applied

it could cause the trailer to skid

it releases too much air from the system

11 / 40

The locking jaws of the kingpin should close around:

the shank

the base

the apex

the tip

12 / 40

The minimum tire tread depth for front tires is:

3/8-inch

1/2-inch

1/32-inch

4/32-inch

13 / 40

What is the best way to stop all skids?

restore traction back to the tires

use controlled or stab braking

accelerate and countersteer

quickly turn the steering wheel side to side

14 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

20 psi

40 psi

They should never pop out

70 psi

15 / 40

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

low beams

emergency flashers

novelty lights

high beams

16 / 40

What keeps air in the tanks should the air compressor develop a leak?

the air compressor

the one-way check vavle

the tractor relay valve

the engine protection valve

17 / 40

When should you avoid using the parking brake?

while on an incline

when the air pressure is low

whenever you park

when the brakes are hot

18 / 40

Suspension systems:

keep the load secure

keep the axles in place

keep the steering wheel tight

keep the brake drums from failing

19 / 40

The average person requires how many hours of sleep per 24 hour period?

7 or 8

5 or 6

6 or 7

8 or 9

20 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

Your spouse

The driver

The shipper

The carrier

21 / 40

Select why you should not use the trailer hand valve while driving:

you should only ever use the parking brake

it will cause the tractor to shake

it does not work as well as the foot brake does

there is a possibility it will make the trailer skid

22 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

the trailer will slightly lower when the converter dolly backed under it

the trailer will slightly rise when the converter dolly is backed under it

the top of the kingpin lines up with the locking jaws

the kingpin is resting behind the fifth wheel

23 / 40

What should you do if you start a trailer skid?

use your trailer hand brake

slowly apply a firm pressure to the brakes

release the brakes to get traction back

quickly step on the brakes

24 / 40

To find out if a shipment includes a hazardous material, you should:

Look at the shipping papers.

Check for a fence around the loading dock.

Ask the driver.

Open and inspect every package and container.

25 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

decrease your speed and test the other system

continue on with your trip

stop and safely park your vehicle only continue once the issue has been resolved

decrease your speed and head to the closest mechanic

26 / 40

In the event of an accident you should remember to do the following EXCEPT:

move the victims out of the way immediately

stop any bleeding and keep the victims warm

notify authorities

protect the area

27 / 40

What can side to side surge cause?

An engine system failure.

An increase in speed.

A roll over.

A spontaneous combustion.

28 / 40

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

Minimum of 15 feet

Minimum of 10 feet

Minimum of 5 feet

Minimum of 2 feet

29 / 40

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

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

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

the length and weight of the vehicle

30 / 40

The golden rule for school buses when approaching and crossing railroad tracks is:

Stop, look, and turn on the radio lights overhead.

Stop, go, and stop.

Stop, look, and listen.

None of these answers are correct.

31 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

Leave your truck parked with emergency lights on and walk for help.

Keep driving for help as quickly as possible.

Keep driving, slowly and cautiously, until you reach a phone.

Send someone for help with all the necessary information.

32 / 40

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

press the seals together at a 90 degree angle

clean the couplers before connecting them

cross the air supply lines to test for leaks

make sure to match the colors or check the tags before connecting

33 / 40

The blind spot behind the bus could extend to how many feet?

300 feet

200 feet

400 feet

100 feet

34 / 40

You must be alert for road hazards so that:

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

You can help impaired drivers.

Law enforcement personnel can be called.

Accident reports will be accurate.

35 / 40

The two other places where the hazardous identification number must appear are:

On the gas tank and a sticker in the glove compartment.

On the back of the truck and inside the glove compartment.

On a temporary license plate holder and the steering wheel.

Any bulk packaging and the cargo tanks.

36 / 40

What are you checking when looking at the lubrication level on a dipstick?

The power steering fluid level

The horn fluid level

The oil level

The windshield wiper fluid level

37 / 40

If your bus is equipped with an emergency exit door, it must:

Not have any signs, stickers, or markings near it.

All of these answers are correct.

Always have a red door light turned on.

Be secured when the bus is being driven.

38 / 40

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

for large vehicles only

for small vehicles only

yes

39 / 40

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

4 seconds

5 seconds

3 seconds

6 seconds

40 / 40

Liquid surge affects the handling of a tanker by:

Allowing you to stop faster.

Moving the truck in the direction of liquid flow.

Allowing you to take tighter turns.

Decreasing the wind drag.

Your score is

The average score is 65%

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