north carolina
CDL Practice Test

Welcome to the CDL practice test site for North Carolina. You can use this site to prepare for the official North Carolina DMV CDL Test. The questions on these practice tests apply to all of the areas you'll need to be knowledgeable in to obtain your NC CDL. You can take these practice tests as many times as you need to, and all of these tests 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

Where should the safety catch for the fifth wheel locking lever be located for coupling to be complete?

through the locking lever

above the locking lever

below the locking lever

outside of the locking lever

2 / 40

What is a king pin?

it is a pin that holds the wheel on to the axles

it is a pin that a driver receives for being a safe driver

it is a pin that locks the trailer to the tractor on the fifth wheel

it is a pin that locks the air brake lines together

3 / 40

Never refuel your bus:

With any of the windows open.

Without a static chain.

With a higher grade of fuel.

In a closed building with passengers on board.

4 / 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?

They should never pop out

70 psi

40 psi

20 psi

5 / 40

When stopped on a divided highway where should your reflectors be placed?

10 feet, 100 feet, and 200 feet toward the approaching traffic

30 feet, 100 feet, and 150 feet toward the approaching traffic

15 feet, 75 feet, and 150 feet toward the approaching traffic

20 feet, 150 feet, and 300 feet toward the approaching traffic

6 / 40

Which of the following statements is true about speed management?

All of these answers are correct.

Speed limits for buses are the same as cars.

You should be able to stop within the distance that you can see ahead.

The posted speed limit is safe for all conditions.

7 / 40

You should_____to uncouple the converter dolly.

lower the landing gear, disconnect the safety chain, and chock the wheels

chock the wheels, disconnect the safety chains, and then lower the landing gear

chock the wheels, lower the landing gear, and disconnect the safey chains

disconnect the safey chains, lower the landing gear, and chock the wheels

8 / 40

Which of the following must be closed while the bus is in motion?

Roof vents

Emergency windows

Both hatches

Windows

9 / 40

The shipping papers for hazardous materials can be found:

Any of the above locations.

In clear view, within reach while driving.

In a pouch on the driver's door.

On the driver's seat when out of the vehicle.

10 / 40

At around____the governor allows the air compressor to start pumping again:

125 psi

225 psi

100 psi

175 psi

11 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

bias

dual

radial

treaded

12 / 40

You should check that the following makes an audible noise:

Engine brakes

Radio system

Electric or air horn

Air leaks

13 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

that the tire tread is sufficient for the expected driving conditions

that the registration is in the cup holder

that there are no leaks in the air brake system

that the radio transmits a signal

14 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

15 / 40

Front wheel brakes are good under what kind of conditions?

any weather conditons

icy or wet conditions

they are not ideal

ideal weather conditions

16 / 40

What gauge on the dashboard indicates electrical system charging rate?

The power gauge

The air gauge

The ammeter/voltmeter

The coolant pressure gauge

17 / 40

How do you check the power steering fluid?

Undo the oil fill cap and check the level.

By looking through the reservoir sight glass.

Via indicator light on the dashboard.

Via the power steering fluid dipstick.

18 / 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:

3 years

2 years

4 years

1 years

19 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

close the shut off valves at the back of the second trailer and open the shut off valves at the back of the first trailer

open the shut off valves at the back of the first and second trailer

close the shut off valves at the back of the first and second trailer

open the shut off valves at the back of the second trailer and close the shut off valves at the back of the first trailer

20 / 40

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

yes

for large vehicles only

for small vehicles only

21 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

yes

only at the end of the shift

only every 7 days

22 / 40

When arriving at the destination announce:

The next departure time.

All of these answers are correct.

The location.

The reason for stopping.

23 / 40

Select the true statement in regards to the braking power of spring brakes.

it will not be affect by the condition of the service brakes

the braking prower increases when the brakes are hot

it depends on the adjustment of the service brakes

braking power can only be tested by licensed mechanics

24 / 40

Select the true statement in regards to a converter dolly:

none of the answers listed

it is a coupling device with only two axles and a sixth wheel to which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a coupling device with one or two axles and a fifth wheel with which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a connecting device consisting of one axle which disconnects a semitrailer combination vehicle converting it into two separate trailers

25 / 40

Which of the following statements about the bus interior is false?

The seats must be safe for riders all seats must be securely fastened to the bus.

Never drive with an open emergency exit door or window.

If there is a red emergency door light, it must work.

If you use your outside lights, you don't need to turn on red emergency door light.

26 / 40

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

The chemtrec phone number.

The date of manufacture.

The un or na id number of the product.

The owner's puco or icc number.

27 / 40

Select the first action to do when the low air pressure warning comes on:

shift into a higher gear

adjust the engine brake

come to a stop and safely park as soon as possible

release the supply control valve

28 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

Brake drums

Slack pieces

Brake lines/hoses

Connector rods

29 / 40

What are spring brakes?

they are big springs with air pressure in them if the air pressure decreases, the brakes are applied

they are large springs that are held closed by air pressure if the air pressure is increased the brakes are applied

they are powerful springs that are restrained by air pressure when the air pressure is removed, the brakes are applied

none of the answers listed

30 / 40

Which of the following statements about downshifting is NOT true?

downshift before climbing a hill

downshift when you get to the bottom of a hill

downshift before entering a curve

downshift before starting down a hill

31 / 40

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

engine brake system

lock brake system

none of the answers listed

service brake system

32 / 40

The amount of liquid you can carry depends on:

The density or weight of the liquid.

How much you can legally carry.

How much the liquid will expand during the trip.

All answers listed.

33 / 40

Select the vehicle that off-tracks the most.

a 5-axle tractor that is towing a 32-foot long trailer

a 5-axle tractor that is towing a 52-foot long trailer

a 5-axle tractor that is towing a 40-foot long trailer

a 5-axle tractor that is towing a 45-foot long trailer

34 / 40

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

it is easier to countersteer doubles/triples than other vehicles

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

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

nothing will occur

35 / 40

What are the 3 methods for securing a second trailer before coupling?

chocking the tires, parking on level ground, and charging the air tank

parking against another trailer, locking the trailer door, and chocking the tires

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

all answers listed

36 / 40

Most states require school bus drivers to take a physical examination:

Twice per year

Every 3 years

Every 2 years

Annually

37 / 40

You should activate hazard lights within approximately how many feet before railroad crossing?

300 feet

200 feet

400 feet

250 feet

38 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

Lug nuts

Locking jaw

Locking pins

Tandem release arm

39 / 40

What is the correct number of red reflective triangles that you should carry?

three

one

seven

five

40 / 40

When stopping for railroad tracks, you must stop no closer than how many feet before the nearest track?

Your score is

The average score is 0%

5/5 - (3 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A north carolina Commercial Drivers License

To be eligible for a CDL in North Carolina, applicants must meet the following age eligibility requirements.

Be at least 18 years old to operate a commercial vehicle intrastate (within North Carolina only).
Be at least 21 years old to operate a commercial vehicle interstate (outside of North Carolina).

North Carolina applicants must provide proof that they are medically fit to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

(Form CDL-MED-1) Medical Certification of Driver Type or Commercial Driver’s License
Medical Card
Full Medical Report (depending on the circumstances)

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in North Carolina. Applicants can be disqualified from the application process for having multiple licenses.

North Carolina CDL Endorsements
H – Hazmat Vehicles
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Double or Triple Trailer

Hit the Open Road

north carolina CDL License Test Tips

All North Carolina CDL applicants must pass the general knowledge test prior to taking the skills test. The general knowledge test consists of 50 questions. To pass the North Carolina test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The North Carolina skills test can be taken 14 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 1 year of the application and current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must:

Be active duty military personnel.
Have operated a motor vehicle equivalent to a commercial motor vehicle in the military within 2 years of the application date.
Submit a Certification for Waiver of CDL Skills Test for Military Personnel.

Additional Information

Information on the North Carolina Department of Transportation

The North Carolina Department of Transportation provides administers CDL license requirements in North Carolina. To get more information contact them via:

Website: https://www.ncdot.gov/dmv/license-id/driver-licenses/commercial/Pages/default.aspx

Phone: 915.715.7000

Additional North Carolina CDL Helpful Links

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

north carolina CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A north carolina Commercial Drivers License

Hit the Open Road

north carolina CDL License Test Tips

Additional Information

Information on the North Carolina Department of Transportation

Additional North Carolina CDL Helpful Links

north carolina
CDL Practice Test