Wyoming
CDL Practice Test

Use this free site to practice for the Wyoming CDL test. You can take these practice test questions as many times as you like. Topics covered in the practice tests include gross weight, hazmat transportation, air brakes and pre-trip inspection Class A rules. 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 Quiz" button below to begin. Good luck!

1 / 40

How do you make sure the trailer height is correct before coupling?

visually check that the lead trailer is higher than the fifth wheel so that the trailer will lower when the dolly is pushed under it

visually check that the rear trailer is lower than the fifth wheel so that the trailer raises slightly when the dolly is pushed under it

you do not need to do a visual check

visually check that they are level height wise

2 / 40

What are shippers trying to accomplish when they package the material?

Make it as light as possible.

Make it easy to open and close.

All of these answers are correct.

Make it easy to identify.

3 / 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

4 / 40

What kind of surge occurs with baffles?

Bottom to top

Circular

Side to side

Back to front

5 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

Only if you have more than 1,001 pounds of it

Yes

Only in populated areas

6 / 40

Select the true statement about slack adjusters:

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

they do not ever need to be adjusted

they can be adjusted automatically or manually

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

7 / 40

Select the part that is not a part of the drum brake:

slack adjuster

brake drum

safety valve

axle

8 / 40

The two other places where the hazardous identification number must appear are:

Any bulk packaging and the cargo tanks.

On the back of the truck and inside the glove compartment.

On the gas tank and a sticker in the glove compartment.

On a temporary license plate holder and the steering wheel.

9 / 40

Select the statement that describes smooth bore tanks:

They are divided down into smaller tanks.

They are 1 large tank.

They are divided with holes from liquid to flow through controlling surge.

None of the answers listed.

10 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

open and open

closed and open

closed and latched

open and latched

11 / 40

What will occur if you cross the connect the air lines?

there will not be air going to the trailer brakes

the tractor will not be able to move

the tractor brakes will lock up

nothing will occur, it'll funciton as normal

12 / 40

A trailer is at the right height to have the tractor backed up to it when:

it'll raise slightly when the tractor is backed up under it

the kingpin is about 1 1/5 inches above the fifth wheel

the fifth wheel will not come in contact with the kingpin

the top of the kingpin is even with the bottom of the fifth wheel

13 / 40

Select the purpose of fanning air brakes:

it cools them down

it decreases the braking power

lower air pressure

it increases the air pressure

14 / 40

Alcohol evaporators in some air brake systems help to:

cleans out oil from the air lines

it removes fuel from the air lines

decrease the chances of ice in the air brake valves in cold weather

decreases the risk of water in the air brake valves in cold weather

15 / 40

How should the hand valve be used?

only in emergency situations

when the trailer is fully loaded down

only in conjuction with the foot brake

to test the trailer brakes

16 / 40

What is the purpose of the supply pressure gauge?

to inform you about how hot the air in the tank is

all of these answers are correct

to inform you of how much air is in the tank

to inform you if there is too little air in the tank

17 / 40

Select the true statement about empty trucks:

empty trailers are easier to stop because there is not cargo shifting

empty trucks stop in the same distance as a fully loaded truck

they have a smaller stopping distance than full trailers

they have poor traction due to wheel lockup and bouncing

18 / 40

You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin.

true

only at the end of a shift

only in a level loading dock

false

19 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

the truck requires increased following distance compared to smaller vehicles

the risk of trailer jackknifes and tipping is increased compared to shorter trucks

extra care should be taken when driving in bad weather and in the mountains

all answers listed

20 / 40

How should the hand valve be used?

to test the trailer brakes

only when the trailer is loaded to its maximum weight

only when accompanied by the foot brake

only when accompanied by the service brakes

21 / 40

How do you release the dolly brakes when coupling twin trailers?

by opening the air tank petcock

by charging the air line

by opening the shut off valve

by flushing the brake line

22 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

fifth wheel

apron

catwalk

frame

23 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

a guidebook for firefighters, police, industry workers, truck drivers, dock workers, and shippers on how to protect themselves and the public from hazardous materials

a guide explaining what materials can be hauled together in the same vehicle

none of these answers are correct

a guide explaining what materials can be hauled together in the same vehicle and a guidebook for firefighters, police, and industry workers on how to protect themselves and the public from hazardous materials

24 / 40

The blind spot behind the bus could extend to how many feet?

200 feet

300 feet

400 feet

100 feet

25 / 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 landing gear to be fully extended

the trailer to lift slightly

26 / 40

Select how you would check the truck's slack adjusters.

while wearing gloves, pull hard on each slack adjuster that you can reach

listen for any strange noises while applying pressure to the brake pedal

brake hard after accelerating

all of these answers are correct

27 / 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

all answers listed

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

28 / 40

You should check your mirrors while making a lane change:

right after you start the lane change

all answers listed

after you have completed the lane change

after you signal your intent to change lanes

29 / 40

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

They need to be changed out.

They are fitted just right.

There is a leak somewhere.

They are loose.

30 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

4 psi in a minute

3 psi in a minute

5 psi in a minute

2 psi in a minute

31 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

32 / 40

What is always required before loading, driving, or unloading a tanker?

Registration of driving plan

Shift into park

Clean the vehicle

An inspection

33 / 40

This object should not be damaged, bent, or rusted through and be evenly centered with the tires and dual wheels evenly separated.

All answers listed

Budd spacing or spacers

Lug bolts

Tire rims

34 / 40

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

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

Never drive with an open emergency exit door or window.

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.

35 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

10 seconds

13 seconds

15 seconds

8 seconds

36 / 40

Buses may NOT have recapped or regrooved tires:

When it's been raining.

On front wheels.

On the outside rear wheels.

Anywhere except on the front wheels.

37 / 40

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

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

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

they are against the law in the majority of states

they make things closer and larger than they really are

38 / 40

The most dangerous time during the school bus ride is:

When loading and unloading students.

When the students become unruly on the bus.

Crossing railway crossing.

On long bus journeys.

39 / 40

Select the definition of "off-tracking."

it is when the rear wheels of the vehicle follow a different path way than that of the front wheels

it is when the trailer wheels go in a different direction from the front wheels

it is wheen the rear wheel skid and the front wheels maintain a straight path

none of the answers listed

40 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

By staying in the right lane if you can.

By driving faster than the other traffic.

By never passing.

By passing only the slowest vehicles.

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A Wyoming Commercial Drivers License

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

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

Medical and Physical
Wyoming CDL applicants must be medically certified that they are physically fit to operate a commercial vehicle and pass a vision test. Applicants must have at least 20/40 vision with both eyes.

Applicants are required to submit the following documents.

(Form FSCDL-705) Wyoming Commercial Driver License Application
(Form MCSA-5876) Medical Examiner’s Certificate (An FMCSA-approved physician must complete this document.)

Disqualifications and Driving Record
Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Wyoming. Applicants can be disqualified for having multiple licenses.

Endorsements

H – Hazmat Vehicles
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Double or Triple Trailer
X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

Wyoming CDL License Test Tips

Knowledge Test
All Wyoming CDL applicants must pass the general knowledge test prior to taking the skills test. To pass the Wyoming test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees.

Skills Test
The Wyoming 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 CDL Waivers
Military veterans 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 currently enlisted in the military.
Possess a valid Wyoming driver’s license.
Have operated a commercial vehicle as part of their military duties within the past 12 months.
Have been recently discharged from the military.
Submit (REV 2016) Application for Military Skills Test Waiver.

Additional Information

Information on the Wyoming Department of Transportation

The Wyoming Department of Transportation provides oversight for CDL regulations in Wyoming. To get more information contact them via:

Website: http://www.dot.state.wy.us/home/driver_license_records/commercial-license.html

Phone: 307.777.4800 option #4

Additional Wyoming CDL Helpful Links

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

Wyoming CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A Wyoming Commercial Drivers License

Hit the Open Road

Wyoming CDL License Test Tips

Additional Information

Information on the Wyoming Department of Transportation

Additional Wyoming CDL Helpful Links

Wyoming
CDL Practice Test