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Utah
Utah CDL Knowledge Test Class A 1
Answers
Q.1.
If hydraulic brakes fail, a driver can reduce their speed by:
Shifting into a higher gear.
Shifting into a lower gear.
Finding a hill.
Letting the truck run out of gas.
Q.2.
If another driver is tailgating you, you should:
Move into the left lane.
Speed up.
Increase the space in front of your vehicle.
Flash your lights.
Q.3.
While driving a vehicle, if an unusual noise or feeling occurs, the driver should:
Assume it is not a concern and continue driving.
Hope the vehicle makes it until it is switched to another driver.
Check the vehicle to determine the proper solutions.
Drive on the shoulder.
Q.4.
Which of the following is acceptable?
Dual tires that do not come into contact with each other
Tires of mismatched sizes if used only on short trips
Retreaded tires on the front of a school bus
Tires with cracks
Q.5.
If exiting a bus, a driver must:
Never make contact with the handrail.
Maintain contact with the handrail.
Move quickly.
Q.6.
Which of the following is not a reason to cover cargo?
To protect people from spilled cargo
To protect the cargo from weather
To keep the cargo a secret
Q.7.
When asked to complete an offset back/right parking maneuver, you should:
Pull straight forward, then back to the right.
Pull straight forward, then back to the left.
Pull forward to the right, then back in a straight line.
Pull forward to the left, then back in a straight line.
Q.8.
During the vehicle inspection test, you will be asked to:
Change a tire.
Explain to the examiner what you would inspect and why.
Estimate the weight of a load in a trailer.
Change a windshield wiper.
Q.9.
What is Gross Vehicle Weight Rating (GVWR)?
The loaded weight of a single vehicle as stated by the manufacturer
The total weight of the vehicle without a laod
The total weight of the cargo minus the containers used to transport the load
The maximum weight allowed to be transported by a vehicle
Q.10.
Driving in extremely hot weather:
Should not be done.
Requires you to remove oil from the engine.
Is safer with less coolant.
Can increase tire pressure.
Q.11.
Driving at night is:
Safer than driving during the day.
Just as safe as driving during the day.
More dangerous than driving during the day.
Discouraged.
Q.12.
Hydroplaning:
Rarely happens to trucks.
Usually happens when vehicles are traveling at speeds above 65 mph.
Can occur with a minimal amount of water on the roadway.
Q.13.
Tar in road pavement often rises to the surface of the road in very hot weather. Spots where the tar bleeds:
Are very slippery.
Offer the same amount of traction as the rest of the roadway.
Offer more traction than the rest of the roadway.
Will stop a vehicle.
Q.14.
If the safety relief valve in an air brake system is releasing air:
You should not be concerned as this is a normal process.
There is something wrong with the brakes.
The valve is operational.
Q.15.
One way to prevent hydroplaning on wet road surfaces is to:
Ensure that your tires have good tread depth.
Under-inflate your tires.
Drive faster than usual.
Q.16.
When pulled off on the side of the road, a driver should:
Keep the driver’s side door open.
Turn on their emergency flashers.
Wave their arms.
Turn off all lights.
Q.17.
When driving a 50-foot truck at 50 mph, you should maintain a following distance of at least:
Four seconds.
Five seconds.
Six seconds.
Eight seconds.
Q.18.
Exhaust system parts should be:
Leaking.
Rubbing against other parts of the vehicle.
Secured tightly.
Q.19.
Manual air tank drains should be:
Opened to drain the tanks after each day.
Left open while driving.
Sealed with glue.
Q.20.
Bridges usually:
Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.
Freeze after other road surfaces freeze.
Freeze before other road surfaces.
Have heaters to prevent them from freezing.
Q.21.
If a vehicle has a vehicle inspection report, the driver:
Should not look at the report and instead try to find any issues themselves.
Should take the vehicle to a mechanic.
Should review the report.
Should not conduct a pre-trip inspection and rely only on the report.
Q.22.
When traction is poor, a driver should accelerate slowly:
Because it is best to always accelerate very slowly.
So they do not lose control of their vehicle.
So the driver does not accelerate faster than the vehicle ahead.
To be the last vehicle through an intersection.
Q.23.
Air pressure should build up in a single air system within:
15 minutes.
12 minutes.
Three minutes.
One minute.
Q.24.
If trying to correct a drive-wheel braking skid, the driver should:
Accelerate.
Countersteer.
Engage the emergency brake.
Q.25.
When loading a trailer, it is important to:
Place as little weight as possible over the axles.
Place an appropriate amount of weight over the axles.
Not be concerned about how the weight is distributed.
Only place weight over the axles.
Q.26.
If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):
You can refuse to take the test without a penalty.
You can refuse taking the test but will be required to pay a $50 fine.
You will lose your CDL if you refuse to take the test.
Q.27.
If an Anti-Lock Braking System (ABS) malfunctions:
The driver will not know.
A yellow lamp will light up on the control panel.
The brakes will lock up.
The brakes will not work.
Q.28.
Which of the following is not a part of an air brake system?
A service brake system
A parking brake system
An emergency brake system
An axle brake system
Q.29.
As part of the vehicle inspection test, a CDL applicant may be asked to:
Check the engine oil level.
Replace a tire.
Remove the alternator belt.
Replace spark plugs.
Q.30.
An applicant will be denied a hazardous materials endorsement if they:
Are a U.S. citizen.
Are wanted for a misdemeanor.
Are wanted for certain felonies.
Already have a driver license.
Q.31.
If required to complete a vehicle inspection report in writing, the report must be signed:
Every day.
Only if defects have been noted and certified to have been repaired.
Only if the repairs are estimated to cost more than $1,000.
Only if requested to do so by a law enforcement officer.
Q.32.
Braking mechanisms are located ____ a brake drum.
Outside
Inside
Next to
On top of
Q.33.
Truck tractors with air brakes built on or after March 1, 1997 must be equipped with:
ABS.
A flag.
White warning lamps.
GPS.
Q.34.
Leaking shock absorbers:
Are normal.
Indicate a potentially dangerous defect.
Will prevent the turn signals from working.
Pose no threat if the vehicle is only driven on highways.
Q.35.
When driving, knowing what is happening behind you is:
Rarely important.
Important.
Distracting.
Q.36.
Which of the following determines your blood alcohol concentration (BAC)?
How much you drink
How frequently you drink
The temperature of the drink
Q.37.
Distracted driving can be avoided by:
Pre-programming radio stations.
Smoking while driving.
Eating while driving.
Q.38.
When in heavy traffic, the safest driving speed is:
Slower than the speed being driven by surrounding traffic.
The same speed being driven by surrounding traffic.
Faster than the speed being driven by surrounding traffic.
Q.39.
Applying the brake pedal causes air pressure to activate an electric switch and:
Turn off the brake lights.
Turn on the low pressure warning light.
Turn on the brake lights.
Turn off the low pressure warning light.
Q.40.
When parked on a flat surface, you should:
Use wheel chocks to prevent your vehicle from moving.
Not use wheel chocks.
Use wheel chocks, but only if you have applied the parking brake.
Q.41.
In low temperatures, bridges usually freeze:
After other parts of the roadway.
Before other parts of the roadway.
At the same time as other parts of the roadway.
Q.42.
If the brake pads rub against the brake drums and create too much heat:
The brakes will stick.
The brakes will become extra sensitive.
The brakes may stop working.
The air compressor will kick on to cool the brakes.
Q.43.
When driving down a steep hill, your primary source of braking should be:
Engine adjustments.
The brakes.
The hand brake.
Q.44.
Rust around wheel nuts may mean:
It recently rained.
The nuts are loose.
The tire is not clean.
Q.45.
After two violations of any state law regarding hand-held mobile phone use:
You will need to cancel your mobile phone service.
Your CDL will be disqualified.
You will be required to drive 10 mph under the posted speed limit for a period of time.
Q.46.
If a traffic light has been green for a long time:
It will probably stay green as you approach.
It is likely broken.
It is likely that the light will soon change to yellow.
It is likely the light will skip yellow and change from green to red.
Q.47.
Rough acceleration:
Is recommended.
Can cause mechanical damage.
Is required on slippery surfaces.
Q.48.
If you are turning left at an intersection where there are two available turn lanes:
It is best to use the right lane.
It doesn’t matter which lane you use.
It is best to use the left lane.
Q.49.
Hydroplaning usually occurs:
When tires are properly inflated.
At speeds under 15 mph.
In areas where water collects on the road.
During the evening.
Q.50.
Rollovers happen when:
Drivers turn too fast.
Drivers turn too slowly.
There is a lot of traffic.
Vehicles are too close to one another.
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