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 check that the _____are secure, caps are on tight, and is not leaking.

fuel tanks

none of the answers listed

cb radio

coolant system

2 / 40

How do you determine if slack adjusters need to be adjusted?

activiate the parking brake and service brake

release the parking brakes and service brakes

release the parking brakes and activate the service brakes

pull out the automatic slack adjustment control knob

3 / 40

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

Driving in the mountains.

Driving with bad tires.

Driving too fast.

Driving on a wet surface.

4 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

do stab or controlled braking

slam down the brake pedal and keep pressure on it

none of the answers listed

use the trailer brakes only

5 / 40

Select the true statement about stop valves in a cargo tank:

They will close in an emergency.

They are manually operated.

They protect the piping and tank during rear end collisions.

They will fall off in an emergency.

6 / 40

Select why you should not use the trailer hand valve while driving:

it will cause the tractor to shake

it does not work as well as the foot brake does

you should only ever use the parking brake

there is a possibility it will make the trailer skid

7 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

use the trailer brakes only

use the stab braking method

drive at a speed of 5 mph below your safe speed

use countersteering practices

8 / 40

If you are stopped on an incline, how can you start moving without rolling back?

apply the parking brake

aggressively pump the accelerator

shift to neutral

fully engage the clutch

9 / 40

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

True, but only in ideal conditions

True, but only on downgrades

False

True

10 / 40

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

Voltmeter/ammeter

Gas tank

Coolant

Oil pressure

11 / 40

What will happen should a driver cross the air lines when hooking up the an older trailer?

the hand valve will activate the tractor brakes instead of the trailer brakes

none of the answers listed

the brake pedal will activate the trailer spring brakes instead of the air brakes

if there are no spring brakes, you can drive on but there will be no trailer brakes

12 / 40

Which of the following is a necessary qualification for non-bulk packaging?

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

All of these answers are necessary qualifications.

13 / 40

Select the true statement in regards to converter dollies:

they typically require a hand converter

they typically have small braking power because of their size

they typically have a lot of stopping power because of their size

they typically do not have spring brakes

14 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

0.65

0.85

0.5

0.72

15 / 40

The reason a bulk liquid tanker is hard to handle is:

Because the cargo has a low center of gravity.

Because of the high friction point.

Because the cargo has a high density.

Because the cargo has a high center of gravity.

16 / 40

What are spring brakes?

they are brakes that automatically come on for a truck or trailer when the psi drops too low

they do not function when the psi falls below 30 psi

all of these answers are correct

they are powerful springs that hold back air pressure when driving

17 / 40

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

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

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

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

rapidly and lightly pump the brake pedal

18 / 40

The most stable tanker shape is:

Elliptical

Round

Cylindrical

Square

19 / 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

it could damage the starting mechanism

someone could steal the truck

all of these answers are correct

20 / 40

This should be cleaned and then adjusted properly while inside the cab.

The windshield

The mirrors

The headlights

The lug bolts

21 / 40

Select the true statement about convex ("spot") mirrors.

they make things look farther away and smaller than they actually are

they make things closer and larger than they really are

you do not need to look at them as often as flat mirrors

they are against the law in the majority of states

22 / 40

Why is it dangerous to unlock the pintle hook with the dolly still under the rear trailer?

the kingpin may snap in half

the fifth wheel may be misaligned

the dolly tow bar may fly up

the spring brakes may release

23 / 40

The best way to test the low air pressure warning signal is to:

apply pressure on and off the brake pedal with the engine off to drop the air pressure to below 60 psi

apply pressure on and off the brake pedal until the air pressure drops below 20 psi

apply pressure on and off the brakes while the engine is running

manually release the air out of your brakes to see if the signal activates

24 / 40

Which of the following statements about overhead space is true?

an empty van is lower than a loaded one

the weight of the cargo changes a truck's height

warning lights are always installed on low bridges and overpasses

athe heights posted at bridges are usually accurate

25 / 40

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

at a normal pressure

at half of its normal pressure

at a level of 50 and 70 psi

at a level of 70 and 90 psi

26 / 40

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

None, you cannot load these materials together.

Just dangerous placards are required.

Poison 23 and dangerous.

Poison 23 and flammable gas 21.

27 / 40

Select the true statement in regards to your brake function when your ABS fails

the abs will need to be repaired but the brakes will function normally

you will have no control over your truck as the brakes will not be functioning

you will need to pull over immediately

there is a huge fire risk

28 / 40

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

Steering linkage

CB radio

Braking system

Power steering fluid

29 / 40

Do empty trucks have the best braking?

yes, but only if the truck is newer than 1998

yes

yes, but only on wet surfaces

30 / 40

Make sure that____when the front trailer supports are up and the trailer is resting on the tractor.

there is enough clearance between the lower and upper fifth wheel

the safety latch is in the open position

there is enough clearance between the landing gear and the tractor frame

the kingpin has been removed

31 / 40

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

Should be used in emergencies.

Releases the brakes.

Works when the rear door is open.

Should be used in place of the parking brake.

32 / 40

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

an empty trailer

a fully loaded trailer

a half loaded trailer

a 1/3 loaded trailer

33 / 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 the power steering fluid dipstick.

Via indicator light on the dashboard.

34 / 40

How should the hand valve be used?

to test the trailer brakes

only in emergency situations

when the trailer is fully loaded down

only in conjuction with the foot brake

35 / 40

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

yes

for small vehicles only

for large vehicles only

36 / 40

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

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

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

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

Never drive with an open emergency exit door or window.

37 / 40

How often should you check the tires on a placarded trailer that has dual tires?

Each time you stop.

Once every three hours.

Start of each day and every time you stop.

Once every 100 miles.

38 / 40

The direction of liquid movement not prevented by baffles is:

Side to side.

None of the answers listed.

Back to front.

Bottom to top.

39 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

Low-range pneumatic gearbox.

None of these answers are correct.

Liquified natural gas.

Lifted neutral graftring.

40 / 40

When transporting hazardous waste, you must:

All of these answers are correct.

Carry a uniform hazardous waste manifest in the truck.

Sign a uniform hazardous waste manifest.

Have the word "waste" before the name of the material on the bills.

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