nebraska
CDL Practice Test

Prepare for your Nebraska CDL test here. You can take these Nebraska CDL practice test as many times you would like as you get ready to take the official test and earn your license. The best part? All of the tests on this site are 100% 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 minimum tire tread depth for front tires is:

4/32-inch

1/2-inch

3/8-inch

1/32-inch

2 / 40

Select the true statement about seeing ahead.

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

all answers listed

many individuals do not look far enough ahead while driving

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

3 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

the first trailer

the second trailer

the tractor

the last trailer

4 / 40

With the controlled braking method, you _____?

repeatedly tap the brakes as fast as you can

apply the brakes all the way until the wheels lock up, release the brakes and apply them again when the wheels start to roll again

apply the brakes as hard as you can without locking the wheels

lightly apply braking pressure

5 / 40

Which of the following are possible causes of tire fires?

improperly loaded cargo and dual tires that touch

dual tires that touch and under-inflated tires

poor cargo ventilation or short circuits

loose fuel connections or under-inflated tires

6 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

the tractor protection valve and parking brake valve should pop out before air pressure falls below 60 psi for combination vehicles

a low air warning device should sound before the air pressure drops below 40 psi

none of the answers listed

a low air warning device should sound before the air pressure drops below 60 psi

7 / 40

The front trailer supports should be____before driving away.

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

raised fully and the crank handle secured in its bracket

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

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

8 / 40

Where are shut-off valves located?

at the back of the trailer

either at the front or the back of the trailer

at the front of the trailer

at the front and back of the trailer

9 / 40

A tractor should not be backed under a trailer until the whole air system is:

is between 40 and 60 psi

is at half of the maximum pressure

is between 50 and 80 psi

at a normal pressure

10 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

Class 3 flammable liquids

Class 7 radioactive materials

Class 1 explosives

Class 6 poisons

11 / 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?

40 psi

70 psi

20 psi

They should never pop out

12 / 40

What can you do at an accident site to help avoid another accident?

put out warning devices so people don't run into the accident site

leave your vehicle, do nothing, and get to higher ground

stay in your vehicle and do nothing until help arrives

have a drink to calm your nerves

13 / 40

You should___to reduce the air leakage rate.

release the service brake as the engine is running

leave the engine running while charging the air system

release the service brake after turning off the engine

monitor the air pressure gauge as you press on the brake pedal

14 / 40

The best way to describe a dual air brake system is:

there are 2 separate air brake systems that have their own hoses, lines etc

there is a primary and secondary system that is 2 separate air brake systems

there are 2 separate air brake systems that supply air to the trailer if there is one

all of these answers are correct

15 / 40

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

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

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

you should use a high gear to make the process faster

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

16 / 40

You downshift automatic transmissions ______.

half way down a hill

at the bottom of a hill

before going down a hill

none of these answers are correct

17 / 40

How do you supply air to the trailer tanks?

by connecting the service line glad hand

by pushing in the trailer air supply valve

by pulling out the trailer air supply valve

by connecting the red and blue lines

18 / 40

Select the true statement in regards to what the fifth wheel should be checked for.

if the jaws are open

if it is properly greased

all answers listed

if there is any missing or damaged parts

19 / 40

Forward and back surge is powerful in this type of tanker.

Waffle

Smooth bore

Bulktruck

Hard stroke

20 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

because other drivers do it

to make sure nothing has been stolen from the vehicle

to make sure the vehicle will make your destination

safety for yourself and other road users

21 / 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 releases too much air from the system

it could cause the trailer to skid

22 / 40

What does it mean when the safety valve releases air?

pressure has passed 150 psi

there is too much air in the air compressor

all of these answers are correct

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

23 / 40

The two main things to look ahead for while driving are _____.

truck stops and police

traffic and road conditions

bridges and tunnels

fire and flooding

24 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

In order to see if small vehicles are driving in the bus blind spots.

In order to clear up blind spots around the bus.

In order to observe the danger zones around the bus and look for the students, traffic, and other objects in this area.

In order to observe the danger zones around the bus.

25 / 40

A placard is required for a combustible liquid at?

100 gallons

110 gallons

Any amount

1,001 pounds or more

26 / 40

What is the best way to stop all skids?

use controlled or stab braking

restore traction back to the tires

accelerate and countersteer

quickly turn the steering wheel side to side

27 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

Turn it off before product transfer, before you hook the hose.

Turn it off during product transfer, while unhooking the hose.

None of these answers are correct.

Turn it off after product transfer, before you unhook the hose.

28 / 40

What is the safest way to stop unruly behavior on the bus?

have the unruly students move to the front of the bus

keep checking the rear view mirror so you can see what happened and report to the principal

pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them

yell loudly for the students to sit down and behave themselves

29 / 40

Select the true statement in regards to the center of gravity for tanks:

None of the answers listed.

The vehicle can handle higher speeds around curves than other large trucks.

The center of gravity is generally lower than with other large trucks.

The vehicle can turn over even when driving at the posted speed limit for curves.

30 / 40

Two causes of tire fires are ______.

duals that touch and road debris

under-inflated tires and poor retreads

under-inflated tires and duals that touch

hot brakes and under-inflated tires

31 / 40

This gauge will indicate if the generator or alternator is charging:

Gas tank

Voltmeter/ammeter

Coolant

Oil pressure

32 / 40

How can you determine if your vehicle is equipped with ABS?

check if your vehicle was manufactured after March 1, 1998 (they are required to have the panel light)

check for yellow abs malfunction lamps on the instrument panel

look for wheel speed sensor wires that are coming from the rear of your brakes

all of these answers are correct

33 / 40

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

adjust the engine brake

come to a stop and safely park as soon as possible

release the supply control valve

shift into a higher gear

34 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

The school district superintendent.

Parents of the students on the bus.

Bus driver.

Students on the bus.

35 / 40

How do you check the air flow to the last trailer?

listen for escaping air after opening the emergency shut off valve

while on an level surface, test the emergency brake lines

watch the brake lights as you step on the brake pedal

pull the vehicle forward and then step on the brakes

36 / 40

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

125 psi

225 psi

175 psi

100 psi

37 / 40

Which of the following statements about downshifting is NOT true?

downshift when you get to the bottom of a hill

downshift before starting down a hill

downshift before entering a curve

downshift before climbing a hill

38 / 40

What do you do first during step 3 of starting the engine and inspecting the inside of the cab?

Listen for any unsual noises after starting the engine.

Start the engine after getting in the cab.

Shift the gear to neutral.

Make sure the parking brake is activated after getting in the cab.

39 / 40

Water is drained from the compressed air tanks because:

the water will over cool the compressor

braking power is decreased due to the low boiling point of water

to keep the oil in the air compressor clean

the water could freeze in cold weather and cause braking failure

40 / 40

This gauge has a governor cut-off.

Air gauge

Oil pressure gauge

The coolant temperature gauge

The ammeter gauge

Your score is

The average score is 0%

5/5 - (2 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A nebraska Commercial Drivers License

To be eligible for a CDL in Nebraska, applicants must be a minimum of 18 years old to operate a commercial vehicle within the borders of Nebraska and 21 to drive outside of Nebraska.

Applicants must provide verification that they meet the medical requirements. Applicants must complete (Form MCSA-5876) Medical Examiner’s Certificate with an FCSA-approved physician. The document must be completed in its entirety and submitted to the Nebraska Department of Motor Vehicles via mail, fax or e-mail.

There are also restrictions on who is able to earn a CDL in Nebraska based on their past driving record as well. Potential CDL applicants who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Nebraska.

Endorsements
H – Hazardous Material
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Towing a Double or Triple Trailer
X – Combination Tank Vehicle and Hazardous Materials

Hit the Open Road

nebraska CDL License Test Tips

All Nebraska CDL applicants must pass the written knowledge test prior to taking the skills test. There are 50 questions on the general knowledge test, and applicants must answer 40 questions correctly. To be eligible for an endorsement, applicants must take a separate test for each endorsement. Applicants must answer 80 percent of the questions on each test correctly.

The Nebraska skills test includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each evaluation. Recent military veterans and current military members can qualify to have the skills test waived if they were discharged from the military within the past year or are currently enlisted in the reserves or service. Or, they are eligible if they have operated a motor vehicle equivalent to a commercial motor vehicle in the military. Applicants must complete an Application for Military Skills Test Waiver. This document must be certified by a commanding officer.

Additional Information

Information on the Nebraska Department of Motor Vehicles

The Nebraska Department of Motor Vehicles regulates the CDL license requirements in Nebraska. To get more information contact them via:

Website: https://dmv.nebraska.gov/cdl/cdl

Phone: 402.471.3861

Contact Locations: https://dmv.nebraska.gov/locations

Additional Nebraska CDL Helpful Links

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

nebraska CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A nebraska Commercial Drivers License

Hit the Open Road

nebraska CDL License Test Tips

Additional Information

Information on the Nebraska Department of Motor Vehicles

Additional Nebraska CDL Helpful Links

nebraska
CDL Practice Test