utah
CDL Practice Test

Welcome to the Utah CDL practice test site. As you prepare to obtain your CDL in Utah, have this site be a guide for practicing common test questions. You can take these practice test questions as many times as you like, and the site is free to use as you prepare to take the Utah CDL test. 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

Why should you test the tractor protection valve?

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

to avoid loss of air from the air hose

all answers listed

to avoid loss of air from the trailer brakes

2 / 40

Select the statement that best describes what the trailer air supply control does:

when pushed it it supplies the trailer with air and when pulled out it supplies the tractor with air

when pushed in it supplies the tractor with air and when pulled out it supplies the trailer with air

when pushed in it supplies the trailer with air and when you pull it out it shuts off the air supply and puts on the trailer emergency brakes

when pulled out it supplies the trailer with air and when pushed in it shuts off the air and puts on the trailer emergency brakes

3 / 40

Which of the following is not a prohibited practice on the bus:

Talking with riders while driving.

Fueling your bus with riders on board if about to run out of fuel.

Towing a disabled bus with riders aboard when getting off would be a safe option.

Refueling in a closed building with riders on board.

4 / 40

Carry-on baggage cannot be stored:

Behind the seats.

In the aisles and stairwells.

Under the seat.

On the seats.

5 / 40

What is the normal operating range for a truck's oil pressure?

20-30 psi

This is engine-specific

30-75 psi

40-60 psi

6 / 40

Which of the following answers lists the three types of emergency equipment you must have on your bus?

Emergency reflectors, fire extinguisher, signal flares and tire repair kit.

Hydraulic jack, fire extinguisher, signal flares.

Fire extinguisher, spare electrical fuses (unless equipped with circuit breakers), and emergency reflectors.

Repair kit, spare electric fuses (unless equipped with circuit breakers), and fire extinguisher.

7 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

Locking pin

Steering linkage

Air brake system

Steering hoses/box

8 / 40

You should____when an emergency requires you to quickly stop due to a crash.

use the hand valve

use stab or controlled braking

use only the engine brakes

maintain pressure on the brake pedal

9 / 40

Select which is not a mandatory emergency equipment:

Extra electrical fuses.

6 fuses, 3 red reflective triangles, or 3 liquid burning flares.

A rated and properly charged fire extinguisher.

Tire changing equipment.

10 / 40

Select the correct setup for shut-off valves:

the front and back shut-off valves are open

the rear shut-off valves are closed and the front trailer valves are open

the front and back shut-off valves are closed

the front shut-off valves are closed and the rear trailer valves are open

11 / 40

Which of these is a good rule for backing a straight bus?

Back and turn toward the driver's side.

Back quickly while no one is coming.

Use your head as the mirrors are unreliable.

Back toward the side opposite the driver.

12 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

Your employer tells you to.

You are also a class a tow truck driver.

Bus is on a drawbridge.

Getting off the bus would be unsafe.

13 / 40

Why do air brakes take longer to stop than hydraulic brakes?

it takes more time for the air to flow through the lines

none of the answers listed

the lines are hotter

longer reaction time

14 / 40

In the event of an accident you should remember to do the following EXCEPT:

move the victims out of the way immediately

notify authorities

stop any bleeding and keep the victims warm

protect the area

15 / 40

What might happen if you swing wide to the left before you turn right?

someone might try to pass you on your right

someone might try to pass you on your left

you might damage your leaf springs

all of these answers are correct

16 / 40

In what position should shut off valves on the rear of the last trailer be in on a set of double trailers?

in an open position

in an open position for the rear trailer and a closed position for the front trailer

in a closed position for the rear trailer and an open position for the front trailers

in a closed position

17 / 40

When does your vehicle's single brake system need an adjustment?

if the pressure builds from 50 to 75 psi in less than 3 minutes

when the pressure builds from 85 to 100 psi in less than 1 minute

if the compressor cuts out at between 70 and 90 psi

when the governor stops between 75-90 psi

18 / 40

An example of a low pressure warning signal for air brakes is:

red light

all of these answers are correct

a wig wag mechanical arm

a buzzer

19 / 40

Which of the following is NOT a part of the steering system?

main spring

steering knuckle

tie rod

hydraulic fluid reservoir

20 / 40

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

this is recommended because it keeps the trailer from tipping over

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

21 / 40

What is the correct number of red reflective triangles that you should carry?

one

seven

three

five

22 / 40

For what reason do you keep the starter switch key in your pocket during the pre-trip inspection?

you will need it to inspect the trailer

you will need it to open the side box

so no one moves the vehicle while you are inspecting underneath it

so you don't lose it

23 / 40

What will happen right away should the service air line come apart but the emergency line is intact while driving a combination vehicle?

you will come to a complete stop

nothing will occur until you try to use the brakes

the trailer's air tank will leak through the one line

the emergency tractor brakes will activate

24 / 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 climbing a hill

downshift before entering a curve

25 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

both of the answers listed

none of the answers listed

see if the air pressure drops more than 3 lbs in a minute while holding it down for that full minute in a single vehicle

see if the air pressure drops more than 4 lbs in a minute while holding it down for a full minute in a combination vehicle

26 / 40

Most states require school bus drivers to take a physical examination:

Twice per year

Annually

Every 3 years

Every 2 years

27 / 40

The emergency air line is used to:

to alert emegency services when there is a problem

engage the tractor's front brake when there is air pressure loss

engage the trailer brakes when there is an air pressure loss

provide back up air pressure

28 / 40

How do you make sure the air lines are not crossed and the trailer brakes are working after supplying air to the trailer?

activate the parking brakes

lift the brake pedal up

release the tractor brakes

listen for brake sounds as you apply pressure off and on the trailer brakes

29 / 40

Under which two special conditions should you downshift?

before entering a curve and before going up a hill

before starting down a hill and before going up a hill

before starting down a hill and before entering a curve

if there is an accident and in sudden heavy rain

30 / 40

Mirrors with a convex surface or "spot" mirrors _____.

make things look farther away and smaller than they actually are

are illegal in most states

make things look closer and larger than they actually are

they show a larger area than flat mirrors so do not need to be checked as often

31 / 40

Which of the following is something the driver must watch for:

Poles and tree limbs at stops.

All of these answers are correct.

Appropriate clearance around and over the bus.

Gaps your bus needs to accelerate and merge with traffic.

32 / 40

Air pressure should build___with a dual air system.

from 60 to 100 psi in 45 seconds

from 50 to 80 psi in 60 seconds

from 85 to 100 psi in 45 seconds

from 70 to 125 psi in 60 seconds

33 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

hydraulic brakes

engine brakes

emergency brakes

all answers listed

34 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

all answers listed

the kingpin is over the fifth wheel

the center of the kingpin is past the locking jaw

the trailer will rise slightly when the converter dolly is backed underneath it

35 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

1/2 to 1 inch

1 to 1 1/2 inches

none

it depends on how heavy the load is

36 / 40

What method should be used to test that the air is flowing to all the trailers?

only a certified mechanic can check for this

listen for air flow after opening the shutoff valves at the rear of the last trailer

pump the brakes with the windows down

check the pressure indicator dial on the final trailer

37 / 40

A minimum tread depth of 2/32 inch is required for:

Non-steer axle tires.

Donut tires.

Driving axle tires.

Parking axle tires.

38 / 40

Which of the following types of emergency equipment must you have on your bus?

Fire extinguisher, spare electric fuses, and reflectors.

Reflectors, fire extinguisher, and accident reporting kit.

Hydraulic jack, fire extinguisher, and signal flares.

Spare electric fuses, fire extinguisher, and accident reporting kit.

39 / 40

What is the best way to stop all skids?

quickly turn the steering wheel side to side

use controlled or stab braking

accelerate and countersteer

restore traction back to the tires

40 / 40

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

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.

Pump the brakes through the curve.

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A utah Commercial Drivers License

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

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

Applicants who are under the age of 21 years old will not be permitted to apply for endorsements in HAZMAT, passenger vehicles and school buses.

Utah CDL applicants must be certified that they are medically fit to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

(Form MCSA-5876) Medical Examiner’s Certificate

(CDL-42) Commercial Driver’s License Medical Self Certification

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

Utah CDL 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

utah CDL License Test Tips

All Utah CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Utah test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Utah 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 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.
Have operated a commercial vehicle as part of their military duties for at least 2 years.
Have been discharged from the military within the past 12 months.
Submit (Form CDL-ST WVR) CDL Skills Test Waiver Application for Military Skills Waiver. The commanding officer must sign this document.

Additional Information

Information on the Utah Department of Public Safety

The Utah Department of Public Safety administers CDL license requirements in Utah. To get more information contact them via:

Website: https://dld.utah.gov/licensingid-cards/commercial-driver-license-cdl/

Phone: 801.965.4437

Additional Utah CDL Helpful Links

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

utah CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A utah Commercial Drivers License

Hit the Open Road

utah CDL License Test Tips

Additional Information

Information on the Utah Department of Public Safety

Additional Utah CDL Helpful Links

utah
CDL Practice Test