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Tennessee
Tennessee CDL Knowledge Test Class A 1
Answers
Q.1.
What is reaction distance?
The distance traveled between seeing a hazard and physically hitting the brakes
The distance traveled between a hazard becoming visible and a driver seeing the hazard
The distance traveled before a driver realizes they must brake
The distance traveled between physically hitting the brake and coming to a complete stop
Q.2.
Anti-Lock Braking Systems (ABS):
Reduce a vehicle's normal braking capacity.
Are in addition to other braking systems and do not reduce a vehicle's braking power.
Are not effective on larger vehicles.
Q.3.
When carrying a wide load, you should:
Drive as fast as possible.
Obtain special permits and follow special rules.
Honk at other drivers to get them to move from the lane closest to you.
Drive on the shoulder.
Q.4.
What should a driver do if their vehicle hydroplanes?
Accelerate.
Use the brakes.
Release the accelerator and push in the clutch.
Take the vehicle out of gear.
Q.5.
Using an Anti-Lock Braking System (ABS):
Is required in some states.
Shortens brake response time.
Provides additional control.
Q.6.
Which of the following is not a sign of tire failure?
A loud sound
Vibration
Smoother steering
Q.7.
If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
32 feet
15 feet
50 feet
10 feet
Q.8.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.9.
When traveling with cargo, you must make sure the cargo is secure:
No more than two times.
Every 150 miles or three hours of driving.
Only after traveling up a hill.
Only after coming to a hard stop.
Q.10.
When covering cargo, a cover that flaps in transit:
Is acceptable.
Allows air to get to the cargo to keep it cool.
Can tear away.
Can attract birds.
Q.11.
Regrooved tires:
Should not be used on any vehicle.
Should not be used on the front of a bus.
Should not be used on trucks hauling gravel.
Q.12.
When are people usually the least alert?
In the morning
In the early evening
Late at night
Q.13.
Drowsy driving is most common during:
The night.
The early morning.
The mid-afternoon.
Q.14.
Black ice is:
Usually thick.
Usually thin.
Not a hazard when driving.
Q.15.
Hanging meat as cargo is usually:
Very stable.
Easy to handle.
Unstable.
Q.16.
When driving at night, you should do all of the following, except:
Make sure you are rested.
Make sure your glasses are clean.
Wear sunglasses.
Q.17.
What may happen if the exhaust system is not working properly?
Poisonous fumes may enter the cab.
Poisonous fumes may exit the rear of the muffler system.
It may prevent proper steering.
It may cause problems if the trailer is fully loaded.
Q.18.
Antifreeze helps to keep an engine functioning properly:
But only in cold weather.
But only in hot weather.
Regardless of the weather.
While minimizing the vehicle's fuel use.
Q.19.
Stopping distance can be affected by:
Speed.
Engine oil.
Time of day.
Traffic.
Q.20.
After an accident, flares should be used with caution because:
There may be fuel spilled on the ground that could catch fire.
Other drivers may not see the flares if the weather is sunny.
Flares are expensive.
Q.21.
What is Gross Vehicle Weight (GVW)?
The total weight of a vehicle and its cargo
The total weight of a vehicle before cargo
The total weight of cargo
The maximum weight allowed to be transported by a vehicle
Q.22.
After a vehicle is started, warning lights and buzzers:
Should stay on for several minutes.
Should turn off within a few seconds.
Should stay on until manually turned off.
Should remain on.
Q.23.
When alley docking, you should first:
Position your vehicle directly in front of the alley.
Back up directly in front of the alley.
Stop parallel to the outer boundary of the alley.
Q.24.
What should be done before transporting an over-length load?
Special transit permits should be acquired.
Fire departments along the route should be alerted.
Tolls should be paid.
Q.25.
Most heavy trucks with manual transmissions require ____ to change gears.
Single clutching
Double clutching
Triple clutching
Quadruple clutching
Q.26.
Rust around wheel nuts may mean:
It recently rained.
The nuts are loose.
The tire is not clean.
Q.27.
When approaching a vehicle for a pre-trip inspection, a driver should look under the vehicle:
To see if the vehicle is on an incline.
To see if there are any fresh fluids on the ground.
To see if the vehicle is in a parking spot.
Q.28.
Which of the following is acceptable if found during a pre-trip inspection?
Tires in mismatched sizes
Tread depth of 2/32 of an inch in the grooves of the front tires
Tires manufactured by different makers
Cracks in the tires
Q.29.
Which of the following is not a tire problem to check for and avoid?
Radial and bias-ply tires used together
Recapped tires on the front of a school bus
Tread separation
All tires are made by the same company
Q.30.
If using air tanks with manually operated drains, how often should you drain the tanks?
Every day
Once a week
Once a month
Once every six months
Q.31.
Vehicles driving behind a truck:
May have difficulty seeing objects in front of the truck.
Often have a great view of the roadway in front of them.
Do not need to signal.
Q.32.
To ensure you do not interfere with traffic while driving a heavy vehicle, you should:
Switch gears while driving uphill.
Try to pass other vehicles while driving uphill.
Stay in the right lane.
Ride the brakes while driving downhill.
Q.33.
How is water and compressor oil removed from the bottom of an air storage tank?
The water and oil are siphoned out of the tank.
A drain valve is opened to remove the water and oil from the tank.
The water and oil are removed automatically as the brakes are used.
A sponge is used to soak up the water and oil.
Q.34.
When driving on a wet road, you should reduce your speed by:
About one-half.
About one-third.
About one-quarter.
Q.35.
If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
55 and 75 psi.
80 and 95 psi.
65 and 100 psi.
Q.36.
Poisonous fumes can enter a truck's cab due to:
A defective exhaust system.
The wrong type of fuel being used.
A lack of oil in the engine.
Under-inflated tires.
Q.37.
Without the proper amount of oil in its engine:
A vehicle will have difficulty stopping.
A vehicle will make quick, jerking movements while being driven.
The engine may be quickly damaged.
Q.38.
When trying to put out an electrical fire:
Use water.
Use a B or C extinguisher.
Use an X extinguisher.
Use a Q extinguisher.
Q.39.
Poisonous fumes can enter a cab due to:
A defective exhaust system.
Using the wrong type of fuel.
A lack of oil in the engine.
Q.40.
If approaching a vehicle with a distracted driver, you should:
Quickly pass the vehicle.
Maintain a safe distance from the vehicle.
Closely follow the vehicle.
Q.41.
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.42.
Scan the road ____ ahead of your vehicle.
Two to three seconds
Five to six seconds
12 to 15 seconds
Q.43.
Broken suspension parts:
Should be repaired immediately.
Should be repaired, but not immediately.
Cannot be identified.
Q.44.
What do anti-lock brakes do?
Help a driver avoid wheel lockup
Lock up the front wheels
Prevent a vehicle from accelerating while traveling uphill
Prevent a vehicle from accelerating while traveling downhill
Q.45.
The ____ are activated by an electric switch that is triggered by the brake pedal.
Headlights
Turn signals
Brake lights
Q.46.
If you are driving and the ABS light comes on, it means that the ABS:
Cannot work due to weather conditions.
Has just been activated.
Is not working properly.
Q.47.
One way to avoid becoming an aggressive driver is to:
Talk on your cell phone while driving.
Question others' driving abilities.
Set realistic expectations regarding travel time.
Q.48.
In extremely hot conditions, you may have to:
Increase your speed to cool the engine.
Reduce your speed to prevent overheating.
Drain the engine coolant.
Follow other vehicles more closely than normal.
Q.49.
A broken exhaust system:
Can allow poisonous fumes to enter the cabin.
Does not cause problems.
Should not be a concern.
Q.50.
A driver should stop after a short distance after changing a tire to:
Ensure that the wheel nuts are tight on the newly-changed tire.
Ensure that there is still enough air pressure in the tire.
Ensure that the correct tire was changed.
Ensure that changing one tire did not damage another tire.
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