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

How high should you crank the landing gear?

so that you can clear railroad tracks

as high up as it will go

for it to be 6 inches above the ground

until the crank handle is loose

2 / 40

The emergency air line is _____and the service air line is____.

red, green

yellow, white

red, blue

white, blue

3 / 40

Select the action that is not recommended when driving on slippery roads:

keep other drivers out of your side space

use a light pressure with the the brake and accelerator pedals

none of the answers listed

use a speed retarder or engine brake

4 / 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 connections should not show signs of excessive corrosion, and the battery box and cover or door should not be damaged and should be secure.

Battery connections should not show signs of excessive corrosion, but the battery box and cover or door is unimportant.

Battery connection should show signs of excessive wear.

5 / 40

What handling effect will baffles have?

There will be less of surging front to back.

None of the answers listed.

There will be an increase in slow surge.

There will be less side to side surging.

6 / 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 fully and the crank handle secured in its bracket

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

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

7 / 40

Another term for a smooth bore tank is:

A tank that is made out of stainless steel.

A liquid tank that has baffles.

A liquid tank that does not have baffles.

A tank that is easily portable.

8 / 40

Which of the following statements about bus evacuation is true?

If time allows, backup to the stop before evacuating the bus.

If time allows, notify the dispatcher about evacuation location, conditions, and type of assistance needed.

If time allows, walk through the bus and close all windows.

If time allows, notify the police.

9 / 40

Cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if the cylinders are:

In boxes that will keep them from turning over.

Loaded into racks attached to the vehicle.

All of these answers are correct.

Loaded in an upright or horizontal position.

10 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle with a gross weight over 26,001 lbs

a vehicle transporting 16 or more passengers

all of these answers are correct

a vehicle transporting hazardous materials

11 / 40

Why should you test the tractor protection valve?

all answers listed

to avoid loss of air from the trailer brakes

to avoid the emergency brakes kicking on due to loss of air

to avoid loss of air from the air hose

12 / 40

Make sure that_____before you back under a trailer.

the air brakes are in an off position

the air supply knob has been pushed it

the air supply knob has been pulled out

the trailer brakes have been locked

13 / 40

When should the trailer hand valve be used?

to test the trailer brakes

all answers listed

when parked in a service lot

when driving at highway speeds

14 / 40

The floor liner for explosives may not:

Contain any of these materials.

Contain steel or iron.

Contain cracks or holes.

Contain nails or screws.

15 / 40

When fueling a placarded vehicle, someone must always be:

At the nozzle, controlling the fuel flow.

At the emergency power shut off for the pump.

Be at the rear most corner on the vehicle.

Within 10 feet of the pump with a fire extinguisher.

16 / 40

Which of the following types of cargo must never be carried on a bus with passengers?

Emergency hospital supplies

Emergency drug shipments

Small arms ammunition (orm-d)

Tear gas

17 / 40

What is the most important reason for doing a vehicle inspection?

to save you money by preventing costly repairs

safety for yourself and other road users

to insure that you will achieve the best gas mileage

federal and state laws require you to inspect your vehicle

18 / 40

In Column 1 the symbol "I" means:

International transportation.

Invalid substance.

Iodine.

International restrictions.

19 / 40

Select the true statement about slack adjusters:

they should only be adjusted by a mechanic that is certified in slack adjusters

they should move a minimum of 2 inches from the push rod attachment

they do not ever need to be adjusted

they can be adjusted automatically or manually

20 / 40

Select the false statement about suspension:

Check for broken or cracked spring hangers.

Check for shifted, missing, or cracked leaf springs.

Check for distorted or broken coil springs.

Check to make sure torsion bars and/or arms are lubricated.

21 / 40

If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?

Make sure the battery acid is loaded on top of the silver cyanide.

Make sure the silver cyanide is loaded on top of the battery acid.

Inform someone and not load the battery acid.

Make sure there is plenty of space between the two.

22 / 40

Five hazard classes that require placarding in any amount are ______.

none of these answers are correct

explosives 11, corrosive 8, flammable 3, explosives 14, and poison 61

poison gas 23, dangerous when wet 43, explosives 13, explosives 12, and explosives 11

corrosive 4, hazardous 14, flammable 2, explosives 7, and radioactive 12

23 / 40

To prevent a roll over a driver can 1) keep the cargo as low to the ground as possible and 2) _____.

have the fifth wheel's free play as tight as possible

drive while intoxicated

take turns slowly

have the brakes properly adjusted

24 / 40

If the hazardous materials are classified as FORBIDDEN you should:

Remove the placards from the trailer.

Place the materials in the front of the trailer.

Refuse the load.

Take special caution in transporting the material.

25 / 40

Always try to back toward the driver's side because

you can see better, watching the vehicle rear out the side window

your truck will naturally pull toward the driver's side

it's more comfortable for turning your neck

all of these answers are correct

26 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

oil pressure

blood pressure

oil temperature

air brake pressure

27 / 40

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

the tractor relay valve

the air compressor

the one-way check vavle

the engine protection valve

28 / 40

Some city transit buses may have a brake-door interlock system, this system:

Releases the brakes.

Should be used in place of the parking brake.

Should be used in emergencies.

Works when the rear door is open.

29 / 40

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

in ideal conditions

when it is raining

whever you feel like it

never

30 / 40

The direction of liquid movement not prevented by baffles is:

Bottom to top.

Back to front.

None of the answers listed.

Side to side.

31 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

The correct answer is not listed.

You have 1,001 pounds or more of two or more table 2 hazard classes, requiring different placards.

You have not loaded 2,205 pounds or more of any table 2 hazard class material at any one place (you must use the specific placard for this material).

Both of these conditions must be met.

32 / 40

Select the statement that is true in regards to quick steering movements and triple/double trailers:

there are no issues that occur from quick steering

it is easier to countersteer compared to other vehicles

as you perform quick steering movements you should apply pressure to the brake pedal

they flip over due to quick steering movements a lot easier than other vehicles

33 / 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 as it could could cause damage to the pintle hook

this is recommended as it is standard procedure

this is not recommended because it may result in injury

this is recommended because it keeps the trailer from tipping over

34 / 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

4 years

2 years

1 years

35 / 40

This should have no illegal stickers, dirt, obstructions, or damage to the glass.

The rearview mirror

None of the answers listed

Mirrors and windshield

The headlights

36 / 40

Which of the following about the front tires on a commercial bus is true?

Can be recapped, but never regrooved.

Must not have recapped or regrooved tires.

Can be regrooved or recapped as long as they have 4/32 tread depth.

Must not be recapped, but can be regrooved.

37 / 40

Of the following hazardous material classes, which is the most dangerous?

Division 63

Division 62

Division 61

Division 64

38 / 40

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

30 feet

5 feet

50 feet

100 feet

39 / 40

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

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

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.

Place transmission in park or neutral and set parking brake.

40 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

The movement of the liquid may push the truck into the intersection.

The trailer may slide into the oncoming traffic.

The trailer may slide to the side due to the rocking motion.

The liquid may leak out of the tank.

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