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Maine
Maine CDL Knowledge Test Class A 1
Answers
Q.1.
How many daily hours of sleep does an adult need to maintain alertness?
Six to seven
Seven to eight
Eight to nine
Q.2.
Which of the following is not a good rule when using turn signals?
Signal early. Signal well before a turn or lane change.
Signal continuously. Do not cancel a signal until the turn is completed.
Don’t over-signal. If no one is near you, there is no need to signal.
Q.3.
As the driver of a truck carrying a load, you are responsible for all of the following, except:
Inspecting the cargo.
Recognizing poorly balanced weight.
Knowing the phone numbers of all fire departments along your intended route of travel.
Q.4.
Which of the following is not a warning sign of fatigue?
Difficulty focusing
Staying within your lane
Rubbing your eyes
Q.5.
When driving on a wet road, you should reduce your speed by:
About one-half.
About one-third.
About one-quarter.
Q.6.
Why should you regularly drain the air tanks?
Because the air gets old and needs to be replaced
Because compressed air contains some water and the water collects in the tanks
To allow for a change in pressure
Q.7.
Some air brake systems introduce alcohol into the system to:
Make the brakes work without squeaking.
Prevent ice from forming in the brake system.
Prevent people from breathing the air from the system.
Q.8.
When backing up, follow a turning trailer by:
Changing nothing. The vehicle will naturally follow the trailer.
Changing the direction of the steering wheel.
Turning the steering wheel even harder in the direction that it is already turning.
Q.9.
While driving, ____ generally holds spring brakes in place.
Air pressure
Electricity
Gasoline
Q.10.
Having weight loaded in a way that creates a high center of gravity:
Increases the likelihood of a rollover.
Increases the likelihood that items will fall down.
Increases the difficulty of unloading the cargo.
Q.11.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.12.
Air storage tanks:
Are not allowed on a vehicle.
Hold compressed air for the brakes.
Should be drained of excess air after every trip.
Q.13.
If driving so slowly that you could impede other drivers, you should:
Drive in the left lane.
Drive while using your four-way flashers.
Drive without using any lights.
Q.14.
When stopping in an emergency situation, you should:
Veer your trailer to the right and stop.
Stop in a straight line.
Veer your trailer to the left and stop.
Q.15.
When pulled off on the side of the road:
A driver should keep the driver’s side door open.
A driver should turn on the emergency flashers.
The driver should wave their arms.
Q.16.
If approaching a law enforcement vehicle that is on the side of the road with its lights flashing, you should:
Speed up.
Stop traffic.
Slow down.
Q.17.
During the vehicle inspection test, you will be asked to:
Change a tire.
Explain to the examiner what you are inspecting and why.
Estimate the weight of a load on a trailer.
Q.18.
Shortly after a tire has been changed, you should:
Stop to make sure the lug nuts are still tight.
Repair the brakes.
Deflate the tire to 10 psi.
Q.19.
In a vehicle with dual air brakes, a leak in one system ____ the second system.
Will always affect
May not affect
Is caused by
Q.20.
Alcohol begins to affect the body:
After only one drink.
After several drinks have been consumed.
At the legal limit.
Q.21.
During a basic vehicle control skills test, a look is when:
A driver checks the gauges on their instrument panel.
A driver checks their blind spots.
A driver walks to the back of their vehicle to check its position.
Q.22.
If you’re not sure what to do to extinguish a fire in your vehicle, you should:
Use water.
Stay inside the vehicle.
Wait for the firefighters.
Q.23.
What is road rage?
Operating a motor vehicle with the intent of doing harm to others
Operating a motor vehicle that is deemed unsafe
Operating a motor vehicle that has not been inspected
Q.24.
You are especially likely to encounter strong winds when:
Coming out of tunnels.
Going into tunnels.
Driving on shoulders.
Q.25.
When should mirror adjustments be made?
Before starting a trip
While driving
When a vehicle is stopped at a traffic signal
Q.26.
Water that has collected on a roadway can cause:
Hydroplaning.
Acceleration.
Stopping.
Q.27.
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:
Always pump the brakes several times before holding down the brake pedal.
Brake normally.
Press down the brake pedal as hard as possible every time you slow or stop.
Q.28.
What tells you how much pressure is in your vehicle's air tanks?
The supply pressure gauge
The ABS malfunction lamp
The tractor protection valve
Q.29.
If a law enforcement vehicle is stopped on the right side of the road with its lights flashing, you should:
Speed up.
Stay in the right lane.
Move into the left lane.
Q.30.
If your brakes fail when traveling downhill, decide what to do as quickly as possible because:
The longer you wait, the faster your vehicle will go.
The longer you wait, the more vehicles will get out of your way.
The longer you wait, the slower your vehicle will go.
Q.31.
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.
Q.32.
When taking a driving test:
You must supply the same type of vehicle for which you will require a CDL.
You may supply any type of vehicle, even if it is not the type of vehicle for which you will be using with the CDL.
The testing station will supply the vehicle.
Q.33.
The two markings on a front brake limiting valve usually read:
"Normal" and "slippery."
"Low" and "high."
"Left" and "right."
Q.34.
If convicted of a traffic violation in your personal car:
You must tell your employer.
Your CDL will not be affected.
Law enforcement will tell your employer.
Q.35.
Broken suspension parts:
Are not a cause for concern.
Are extremely dangerous.
Cannot be identified.
Q.36.
During the driving test, the examiner will be scoring you on:
Attitude.
How quickly you arrive to your destination.
Your general driving behavior.
Q.37.
When making a left turn, you should start the turn:
Before reaching the center of the intersection.
No sooner than the center of the intersection.
After your rear wheels have passed the center of the intersection.
Q.38.
Rolling backward when beginning to accelerate is dangerous because:
The transmission may be damaged.
The truck is not made to go backwards.
You may hit a vehicle behind you.
Q.39.
What is the Gross Vehicle Weight Rating (GVWR)?
The weight stated by the manufacturer as the loaded weight of a single vehicle
The maximum weight that can be pulled by a vehicle
The minimum weight that can be hauled by a vehicle
Q.40.
What helps prevent wheel lockup when braking?
An Anti-Lock Braking System (ABS)
Air brakes
An alternator
Q.41.
If your brakes fail on a downgrade, your best hope to stop is to:
Use an escape ramp.
Use the shoulder.
Drift to a stop.
Q.42.
Mirror adjustment can only be checked properly if:
The trailer is straight.
There is no trailer.
The vehicle is on a slight incline.
Q.43.
When inspecting your tires, you do not want to find:
Tire tread that is 4/32 of an inch deep.
Valve stems without damage.
Mismatched tire sizes.
Q.44.
Which of the following determines your blood alcohol concentration (BAC)?
How much you drink
How frequently you drink
The temperature of the drink
Q.45.
To obtain a hazardous materials endorsement, a person must be:
A U.S. citizen or permanent resident.
Perform their own background check.
New to the United States.
Q.46.
Overloading a vehicle with cargo:
Usually has no effect on the vehicle.
Can impact the vehicle's steering and brake control.
Can impact the vehicle's electrical system.
Q.47.
The minimum acceptable tread depth for rear tires is:
1/64 of an inch.
1/32 of an inch.
2/32 of an inch.
Q.48.
What is removed when an air tank is drained?
Water and oil
Ammonia
Liquid cleaners
Q.49.
Pre-trip inspections should be done:
Differently each time in order to place emphasis on different items.
The same way each time to prevent you from forgetting anything.
Once in a while.
Q.50.
You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
Assume the posted clearance height is accurate.
Assume the posted clearance height is inaccurate.
Measure the height of the opening before proceeding.
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