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

You should never brake and should rely only steering inputs to avoid a crash while driving a tanker truck.

False

True, but only on downgrades

True, but only in ideal conditions

True

2 / 40

Your rig should be parked on__to uncouple double trailers.

a downgrade

grass

level ground

the company's lot

3 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

the tractor protection valve will close

the tractor to lose all air pressure in the tanks

the trailer supply valve will remain open

the tractor will gain air pressure

4 / 40

What is the service air line controlled by?

the relay vavle by sending air pressure from the trailer air tank to the trailer brake chambers

the relay valve that connects the trailer air tanks to the trailer air brakes

the pressure applied to the trailer hand brake or by the foot brake

all answers listed

5 / 40

You should follow behind other vehicles ______when traveling under 40 mph.

at a distance of 1 second for every 15 feet of your vehicle length

as close as possible so other drivers won't cut in front of you

at a distance of 1 seconds for every 10 feet of your vehicle length

at a distance of 1 second for every 5 feet of your vehicle length

6 / 40

The designation RQ identifies the material's:

Reference quotient

Reportable quantity

Regulatory quotient

Regulatory quantity

7 / 40

The floor liner for explosives may not:

Contain cracks or holes.

Contain any of these materials.

Contain nails or screws.

Contain steel or iron.

8 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

to warn drivers behind you when you need to slow down

to signal to tailgaters that they are too close to your vehicle

to warn vehicles approaching you from behind that you are driving slowly

to alert drivers behind you that there are hazards ahead

9 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

none of the answers listed

all of the answers listed

drive with extra care in mountains and in bad weather

increase your following distance

10 / 40

Select the true statement about tractor protection valve:

all of these answers are correct

if the air supply drops to a certain level it will automatically close itself

it provides the air supply to the brake system

it is closed by the parking brakes

11 / 40

The minimum tread depth for steering axle tires is:

2/23 inch

None of the answers listed

14 mm

4/32 inch

12 / 40

What is the most important reason for doing a school bus inspection?

To check for flat tires.

To assist the school principal with their report.

To give the mechanic something to do.

For safety required by federal, state, and local laws.

13 / 40

How can you check slack adjusters?

by pulling hard on each slack adjuster

it is not possible to check manually

by frequently checking the pressure gauge

by using a fixed wrench

14 / 40

There must be a hazardous materials identification number on the ______ and on the ______.

trailer, packages

shipping papers, package

invoice, shipping papers

package, trailer

15 / 40

Select the load of the trailer that will require the shorter distance to stop.

a fully loaded trailer

a 1/3 loaded trailer

an empty trailer

a half loaded trailer

16 / 40

How far before a railroad crossing should you stop your bus?

100 feet exactly

15 to 50 feet

50 to 75 feet

10 to 35 feet

17 / 40

A placarded vehicle must carry what type of fire extinguisher?

One with a rating of 5 b/c minimum.

One with a rating of 10 a/b minimum.

One with a rating of 10 b/c minimum.

One with a rating of 5 a/b minimum.

18 / 40

You should_____to make an emergency stop with air brakes when using the stab braking method.

apply a firm pressure to the brakes, release the brake pedal once the wheels lock and then apply pressure to the brakes onces the wheels start rolling again

rapidly and lightly pump the brake pedal

apply a full hand valve until you stop and press firmly on the brake pedal

apply pressure to the brake pedal until the wheels lock and then stay off of the pedal for as long as the wheels are locked

19 / 40

Placarded vehicles must carry which type of fire extinguisher?

A-B fire extinguisher

C-D fire extinguisher

B-C fire extinguisher

Hazmat extinguisher

20 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving in the mountains.

Driving on a wet surface.

Driving too fast.

Driving with bad tires.

21 / 40

Select the situation in which you should use the hand valve to park a combination vehicle.

during the winter

when parking on a grade

when parking at loading docks

in no situation

22 / 40

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

in ideal conditions

never

whever you feel like it

when it is raining

23 / 40

You should_____when an emergency requires you to quickly stop your tanker.

use the emergency brakes only

turn off the abs and brace for impact

use stab or controlled braking

keep a firm pressure on the brake pedal

24 / 40

If there is rust around the nuts, what may it indicate?

There is a leak somewhere.

They are fitted just right.

They need to be changed out.

They are loose.

25 / 40

Why should you know the outage?

Just in case you become a contestant in a trivia competition.

Liquids expand different amounts.

Heavier liquids don't require outage.

Baffles are not always permitted with certain types of liquids.

26 / 40

Select the answer that is controlled by the foot brake.

the shut off valves

the service air line

the engine brake

the emergency brake

27 / 40

Select the true statement about slack adjusters:

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

they can be adjusted automatically or manually

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

they do not ever need to be adjusted

28 / 40

You should expect____when backing a tractor under a trailer.

the end of the kingpin to be level with the top of the fifth wheel

the trailer to be completely still

the trailer to lift slightly

the trailer landing gear to be fully extended

29 / 40

You should be extra cautious when___while driving a smooth bore tanker combination.

driving up a hill

stopping and starting

unloading or loading

driving down a hill

30 / 40

You should____to check the free play of manual slack adjusters on S-Cam brakes.

chock the wheels and release the parking brakes after parking on a level ground

apply the parking brake after stopping on level ground

drain off air pressure before adjusting after parking on level ground

after parking on a slight grade, release the parking brake, activate the service brakes and check for vehicle movements

31 / 40

Front wheel brakes are good under what kind of conditions?

they are not ideal

ideal weather conditions

icy or wet conditions

any weather conditons

32 / 40

Select the true statement:

wait to brake heavy vehicles for as long as you can

you should always ride the brakes

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

33 / 40

To avoid rollover when going through a curve, the best thing to do is:

Pump the brakes through the curve.

Drive at a speed below the posted speed limit.

Drive at a speed higher than the posted speed limit.

Ride the brakes through the curve.

34 / 40

When accelerating:

do not engage the clutch before you take your foot off the brake

always use the parking brake to slow down

speed up smoothly and gradually and avoid jerking

"hammer down" when your wheels start to spin

35 / 40

A tank trailer should never be fully loaded due to:

The liquid can expand causing a leak from the trailer.

The will be more shifting of the load.

The movement is stronger.

The baffles aren't as effective.

36 / 40

You should check the_____when loading small tanks equipped with bulkheads.

percentage of water

fuel to air ratio

expansion rate

distribution of the weight

37 / 40

The method used to make sure the spring brakes will come on automatically is to:

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure drops to 120 psi.

Apply pressure on and off the brake pedal to increase the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure while driving at a high a speed. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

38 / 40

What color and shape is the trailer air supply control?

it is an 8-sided knob that is red

it is a square knob that is red

it is a triangle-shaped knob that is red

it is a square knob that is yellow

39 / 40

A baffled tanker has:

Separate compartments inside the trailer.

Balls floating in it to increase the speed of the liquid movement.

Bulkheads with holes that allow liquid to flow through it.

No side to side surge.

40 / 40

Select the true statement in regards to managing the space to the sides:

you should try to avoid driving next to others when possible

you should drive down the center of both lanes over the pavement markings

high wind gusts will not cause any issues for doubles or triples

you should always keep your vehicle to the right side of the lane

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