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Driving Test
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Driving Test
Nebraska
Nebraska CDL Knowledge Test Class B 2
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Q.1
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The air compressor governor controls:
When the air compressor pumps air into the air storage tanks.
How fast air is pumped into the air storage tanks.
The temperature of air pumped into the air storage tanks.
The speed of the vehicle.
Q.2
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The minimum size of placards identifying hazardous materials is:
Four inches.
Six and one-quarter inches.
Nine and three-quarter inches.
10 and three-quarter inches.
Q.3
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Routine vehicle inspections should be done to ensure:
Safety.
Good gas mileage.
Comfort.
Q.4
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In very hot weather, the air pressure in tires may decrease.
True
False
Q.5
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To use the controlled braking method, you should:
Apply the brakes as hard as possible without locking the wheels.
Apply the brakes with about half-force.
Apply the brakes until the wheels lock.
Pump the brakes.
Q.6
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When transporting cargo, you should:
Accelerate quickly.
Check the load and securing devices after driving for no more than 50 miles.
Not use your mirrors to look behind your vehicle.
Keep a cell phone in your hand, in case of an emergency.
Q.7
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Fatigue:
Has little effect on driving.
Can impair driving.
Is not noticeable.
Q.8
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Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to a passenger in their vehicle
A child on the side of the road
A construction worker on the side of the road
A person sitting on a bench waiting for a bus
Q.9
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How many air storage tanks are used in an air brake system?
Two tanks
Four tanks
Six tanks
The number varies.
Q.10
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When stopping, the brake pedal should be:
Pressed down gradually.
Pressed down quickly.
Pressed down repeatedly, but not held down continuously.
Q.11
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Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
Clean the air in the passenger compartment.
Q.12
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Dry bulk tanks:
Cannot be driven on interstates.
Take special care to be driven.
Are usually not allowed to cross railroad tracks.
Q.13
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Who is responsible for the safe operation of a vehicle?
The driver
The mechanic
The owner
Q.14
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How can you prevent drowsiness before a trip?
Get about four hours of sleep.
Plan stopping points into your trip in advance.
Drive alone.
Schedule long trips at night.
Q.15
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What is removed when an air tank is drained?
Water and oil
Ammonia
Wood
Chlorine
Q.16
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Cargo on flatbed trailers should be:
Tied down.
Glued down.
Left loose.
Pushed to one side.
Q.17
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Improperly loaded cargo can:
Look bad to other drivers.
Hurt or kill the driver during a quick stop.
Make it easier to stop a vehicle.
Q.18
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If planning to change lanes, your mirrors should:
Not be checked.
Be checked as usual.
Be checked more often than usual.
Q.19
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A vehicle that is smaller than your vehicle:
Will usually be able to stop faster than your vehicle.
Will usually take more time to stop than your vehicle.
Will take about the same amount of time to stop as your vehicle.
Q.20
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When you need to change lanes:
Other vehicles will likely get out of your way.
You should change lanes slowly and smoothly.
You should wait to change lanes until you are in an intersection.
Q.21
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What does the air compressor governor do?
Controls when the air compressor pumps air into the air storage tanks.
Controls how quickly air leaves the air storage tanks.
Controls the temperature of the air entering the air storage tanks.
Controls the temperature of the air leaving the air storage tanks.
Q.22
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If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:
Thin.
Properly tightened.
Cracked.
Q.23
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If a tire fails, you should:
Loosen your grip on the steering wheel.
Immediately apply the brakes.
Check your tires after coming to a complete stop.
Turn sharply off the road.
Q.24
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When turning quickly to avoid an object in the roadway, you should:
Apply your brakes as you steer.
Give yourself extra clearance by turning more than needed to miss the object.
Turn just enough to miss the object and avoid turning more.
Steer and accelerate at the same time.
Q.25
Submit
Mirrors should be adjusted:
While moving.
When the trailers are straight.
When you are standing next to the vehicle.
By an assistant.
Q.26
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Air brakes use ____ to function.
Compressed air
Liquid air
Nitrogen
Q.27
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When are people usually the least alert?
In the morning
In the early evening
Late at night
Q.28
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When transporting cargo, drivers must check the securement of the cargo every:
10 miles.
150 miles.
500 miles.
1,000 miles.
Q.29
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What is the purpose of a vehicle inspection report?
It tells the motor carrier about problems that may need to be fixed.
It ensures that the vehicle is inspected regularly.
It keeps drivers accountable for inspecting their vehicles.
It provides a plan for the next five trips.
Q.30
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When conducting a vehicle inspection, you must show each of the following, except:
That the oil pressure gauge is working.
That the oil pressure warning light turns off, or that the gauge shows increasing or normal oil pressure.
That the oil temperature gauge, if equipped, rises to the normal operating range.
That the oil pressure gauge comes on when brakes are used.
Q.31
Submit
Where is the safety relief valve usually located?
Near the rear brake
Near the front brake
In an air tank
On the dashboard
Q.32
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A sign that your vehicle's brakes will need repair is that the:
Brake pads are not covered in grease.
Brake pads are not covered in oil.
The brake pads are worn thin.
Q.33
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Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.34
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When alley docking, your vehicle should be parked:
With the front bumper on top of the front boundary line.
With the rear wheels over the rear boundary line.
Straight within the boundaries of the parking space.
At an angle within the boundaries of the parking space.
Q.35
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When doing an inspection, ensure that the brake pads are:
Covered with grease.
Covered with coolant.
Covered with oil.
Free of oil or grease.
Q.36
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When checking its automatic transmission fluid, the vehicle:
Should be placed on an incline.
Should be placed on a decline.
May have to be running.
Should be lifted with a jack.
Q.37
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What do air brakes use to make the brakes work?
Compressed air
Outside air
Non-compressed air
Q.38
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When inspecting cargo, the driver should do all of the following, except:
Ensure that the truck is not overloaded.
Ensure that the cargo is balanced.
Ensure that the cargo is secured properly.
Ensure that the breakable items are placed under heavier items.
Q.39
Submit
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.40
Submit
When driving a 50-foot truck at 50 mph, your minimum following distance should be:
Four seconds.
Five seconds.
Six seconds.
Q.41
Submit
If the safety relief valve in the air brake system releases air:
The compressor needs more air.
The air pressure has become too high.
The brakes are fully operational.
Q.42
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Slippery roadways usually:
Make it more difficult to stop a vehicle.
Make it easier to stop a vehicle.
Make it easier to drive a vehicle.
Can be avoided by driving at night.
Q.43
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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.44
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While driving, your mirrors:
Should not be used.
Should only be used when changing lanes.
Should be checked regularly.
Q.45
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If being tailgated, you should:
Increase your speed.
Increase the amount of space between your vehicle and the vehicle in front of you.
Make quick movements.
Q.46
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Of the following, which is the most slippery surface?
Ice that is dry
Ice that is wet
Wet pavement
Q.47
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What does driving intrastate mean?
Traveling within a single state
Traveling from one state to another state
Traveling mostly within one state
A limited-access roadway
Q.48
Submit
How long should it take for oil pressure to reach a normal level when starting a vehicle?
A few seconds
About a minute
About four minutes
Q.49
Submit
Always perform the steps of a pre-trip inspection in the same order each time because:
You will be less likely to forget something.
You will have more time to complete the inspection.
It is required by law.
Q.50
Submit
In a dual air brake system:
Each system has separate air tanks, hoses, and lines.
The systems share air tanks, but each has its own separate hoses and lines.
Each system uses the same lines and hoses.
One system is the main braking system and a second system is ready to be used if the first one fails.
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