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

Which of the following statements about overhead space is true?

athe heights posted at bridges are usually accurate

an empty van is lower than a loaded one

warning lights are always installed on low bridges and overpasses

the weight of the cargo changes a truck's height

2 / 40

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

Registration of driving plan

An inspection

Clean the vehicle

Shift into park

3 / 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

4 / 40

Which of the following parts do not get checked in the Bus Interior inspection:

Seat coverings.

Each hand-hold and railing.

Signaling devices, including the restroom emergency buzzer, if the bus has a restroom.

Emergency exit handles.

5 / 40

Select the correct description for a bulkhead tank.

It is one large tank.

None of the answers listed.

They are divided down into smaller tanks.

They are divided with holes to allow liquid to flow through controlling surge.

6 / 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

the length and weight of the vehicle

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

7 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

you should leave the landing gear at the half way mark to make the uncoupling process easier later

you should grease the landing gear the increase the speed of the process

you should use a low gear until the tractor is supporting the trailer

you should use a high gear to make the process faster

8 / 40

Select the true statement about double or triple trailers.

they can roll over due to abrupt steering movements

all answers listed

they present a rearward amplification hazard

they can have a dangerous "crack the whip" effect

9 / 40

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

drink caffeinated beverages

turn up the radio

roll down the windows

stop to sleep

10 / 40

Carry-on baggage cannot be stored:

Under the seat.

In the aisles and stairwells.

Behind the seats.

On the seats.

11 / 40

Off-tracking happens when going around a corner and:

the rear part of the trailer goes into the shoulder

the front part of the trailer pulls to the right

the rear wheels follow the front wheels in a straight path

the rear wheels follow a different pathway than that of the front wheels

12 / 40

The amount of liquid you can carry depends on:

How much you can legally carry.

All answers listed.

How much the liquid will expand during the trip.

The density or weight of the liquid.

13 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

Bolt spacers

Rims

Lug nuts

None of the answers listed

14 / 40

Rods, connecting links, and arms from the steering box to the wheel are a part of the:

Power steering fluid

Steering linkage

Braking system

CB radio

15 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

30 feet

5 feet

100 feet

50 feet

16 / 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 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.

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.

17 / 40

Liquid surge affects the handling of a tanker by:

Allowing you to stop faster.

Moving the truck in the direction of liquid flow.

Decreasing the wind drag.

Allowing you to take tighter turns.

18 / 40

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

you would have to get a CDL with a restriction otherwise

it is a federal requirement

you cannot receive a CDL at all otherwise

all trucks have air brakes

19 / 40

The locking jaws of the kingpin should close around:

the apex

the tip

the shank

the base

20 / 40

Where can you find a shipper’s certification?

It is a separate document that all hazmat drivers must keep in their vehicles.

There is no such thing.

On all packages.

On the original shipping paper.

21 / 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

22 / 40

Which of the following would NOT be part of a standard vehicle inspection?

tire problems

bad brake drums or shoes

seating defects

steering system defects

23 / 40

If students must cross the street, when they get off the bus, which statement is true?

If the bus is equipped with the crossing gate, the danger of running over the child is eliminated.

For crossing, students should make eye contact with the bus driver and wait for the driver's signal that it is safe to proceed.

The student should wait to cross the street until the bus continues on its route.

When the driver signals that it is safe to proceed, the students must run across the street to reduce the exposure to danger.

24 / 40

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

Only in the event of a federally declared emergency situation.

Never.

Only when the shipment does not cross state lines.

Only when the vehicle does not require placards.

25 / 40

Select the true statement about empty trucks:

they have poor traction due to wheel lockup and bouncing

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

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

they have a smaller stopping distance than full trailers

26 / 40

Select the statement that describes smooth bore tanks:

They are 1 large tank.

None of the answers listed.

They are divided with holes from liquid to flow through controlling surge.

They are divided down into smaller tanks.

27 / 40

Before backing under the trailer after connecting the air lines you should:

double check to make sure the trailer brakes are off

take a walk around the vehicle to make sure it is clear of obstructions

supply air to the trailer system and then pull the air supply knob out

have a random pedestrian direct your path of travel

28 / 40

What kind of surge occurs with baffles?

Bottom to top

Back to front

Side to side

Circular

29 / 40

You must not allow riders to stand:

Within two feet of an emergency exit.

Within two feet of any window.

In front of the standee line.

Between the wheel wells.

30 / 40

Before transporting a sealed load, you must check:

all of these answers are correct

a picture of whatever is inside

that you don't exceed gross weight and axle weight limits

a small sample of whatever is inside

31 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

Look slightly to the right at a right lane or edge marking, if available.

None of these answers are correct.

Turning your high beams on to "get back at them".

Quickly flash your high beams to give them fair warning.

32 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

Place transmission in park or neutral and set parking brake.

Open the service door just enough to activate the alternating red light when traffic is in a safe distance from the bus.

Activate the amber flashing caution lights to warn vehicles that the bus will stop to load passengers soon.

Make a final check to confirm all traffic stops before opening the bus door and signaling students to approach.

33 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer with the smallest road

the trailers shortest in length

the trailer with the heaviest load

the trailer longest in length

34 / 40

You are required to have a tank endorsement when transporting:

Passengers

Bulk fertilizer

Gas or liquid

Materials that are hazardous

35 / 40

Take extra caution when driving smooth bore tanks during:

Stops and starts.

All answers listed.

Driving into the wind.

Drive down or up an incline.

36 / 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 tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

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 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 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.

37 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

6 seconds

3 seconds

4 seconds

7 seconds

38 / 40

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

nothing will occur

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

the rig will slide sideways but stay in a straight line

there will be a trailer jackknife

39 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

Getting off the bus would be unsafe.

You are also a class a tow truck driver.

Your employer tells you to.

Bus is on a drawbridge.

40 / 40

Select the statement that tells you how you can check the low pressure warning signal.

Turn the electrical power off and apply pressure on and off the brake pedal to decrease air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 30 psi in the air tank.

Turn the electrical power on and apply pressure on and off the brake pedal to increase air tank pressure. The low air pressure warning signal must come on before the pressure increases to more than 60 psi in the air tank.

The low pressure warning signal is only testable by the factory.

Turn the electrical power on and apply pressure on and off the brake pedal to decrease the air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the air tank.

Your score is

The average score is 65%

3.6/5 - (5 votes)

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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