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Wisconsin
Wisconsin CDL Knowledge Test Class A 1
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Q.1
Submit
During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.
3 psi
5 psi
7 psi
9 psi
Q.2
Submit
What is a wig wag?
A type of warning system
A tube used to move air from the compressor to the tanks
A noise made by air brakes when used
A part within the braking unit that allows air to move freely
Q.3
Submit
When driving:
You should always drive at the posted speed limit.
You should always drive slightly below the posted speed limit.
You should adjust your speed according to conditions.
You should drive as fast as possible.
Q.4
Submit
You should always use at least ____ to secure cargo on a flatbed trailer.
One tie-down
Two tie-downs
Three tie-downs
Four tie-downs
Q.5
Submit
When inspecting the windshield before a trip, a person should do all the following, except:
Remove and sharpen the wiper blades.
Check the windshield wipers for proper spring tension.
Check the wiper blades for damage.
Q.6
Submit
When driving down a steep grade, your brakes may fade. What happens if brakes fade?
They become quieter.
They become less effective.
They work better than usual.
They work differently from front to back.
Q.7
Submit
Eating while driving is:
A good way to save time.
A dangerous activity.
Acceptable if you are eating foods that are easy to eat.
Q.8
Submit
During the driving test, the examiner will be scoring you on:
Attitude.
How quickly you arrive to your destination.
Your general driving behavior.
Q.9
Submit
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.10
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A fatigued driver:
Is usually extra alert.
Is usually more conscientious than a typical driver.
May be slower to make critical decisions than a typical driver.
Q.11
Submit
A cardboard box on the roadway:
Is not a cause for concern.
Is usually empty.
May contain a heavy object that could damage your vehicle.
Should be avoided by driving off the roadway.
Q.12
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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.13
Submit
What helps prevent wheel lockup when braking?
An Anti-Lock Braking System (ABS)
Air brakes
An alternator
Q.14
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A ____ allows a driver to gradually apply spring brakes.
Modulating control valve
Trailer air supply control
Relay valve
Q.15
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Most heavy-duty vehicles use ____ air brake systems.
Single
Dual
Triple
Quad
Q.16
Submit
Regrooved tires are:
Allowed only on the front of a bus.
Allowed only on the rear of a bus.
Not allowed anywhere on a bus.
Q.17
Submit
If driving a truck that requires a CDL for operation:
You do not need to wear a seat belt.
You are required to wear a seat belt, but only if transporting more than 500 pounds of cargo.
You are always required to wear a seat belt.
You are only required to wear a seat belt when driving a tank trailer.
Q.18
Submit
When driving with covered cargo, a cover that flaps:
Is acceptable.
Allows air to keep the cargo cool.
Can tear loose.
Can attract birds.
Q.19
Submit
Which of the following is the best advice for driving in fog?
Try not to drive in fog.
Use your high beam headlights.
Turn off your lights.
Q.20
Submit
A poor balance of weight in a trailer:
Can make handling unsafe.
Improves traction.
Increases fuel efficiency.
Q.21
Submit
Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Kidnapping
Smuggling
Immigration violations
Speeding
Q.22
Submit
Header boards:
Should never be used.
Protect drivers from being hit by cargo.
Protect drivers' heads when they are entering the cab of a truck.
Q.23
Submit
What color are ABS malfunction lamps?
Orange
Yellow
Green
Blue
Q.24
Submit
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.25
Submit
What does ABS do?
Prevent wheel lockup
Prevent the air compressor from overheating
Prevent the front brakes from being used on ice
Prevent the brakes from being used if downshifting would be more effective
Q.26
Submit
The drive shaft should:
Be bent toward the passenger side.
Be bent toward the driver’s side.
Be bent to one side or the other.
Not be bent.
Q.27
Submit
A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.
Green
Yellow
Orange
White
Q.28
Submit
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.29
Submit
To use the controlled braking method, you should:
Lock your wheels while braking.
Apply your brakes as firmly as possible without locking the wheels.
Slightly tap the brakes.
Q.30
Submit
If a roadway is covered by fog, it is best for you to:
Drive faster than usual.
Use your high beam headlights.
Turn off your headlights.
Avoid driving.
Q.31
Submit
How could you reduce your stress while driving?
Drink a caffeinated beverage
Talk on your cell phone
Gesture at other drivers
Listen to calming music
Q.32
Submit
When making tight maneuvers, it is important for a driver to:
Open the door for a better look.
Use their mirrors.
Flash their headlights.
Open their cargo door.
Q.33
Submit
What is a tire load?
The minimum safe weight a tire can carry
The maximum safe weight a tire can carry
The weight of a tire
Q.34
Submit
When transporting cargo, drivers must check the securement of the cargo every:
10 miles.
150 miles.
500 miles.
Q.35
Submit
Dry bulk tanks:
Usually have low centers of gravity.
Usually have high centers of gravity.
Usually are not allowed to cross railroad tracks.
Cannot be driven on interstates.
Q.36
Submit
The most common type of foundation brake used is the:
S-cam drum brake.
C-cam drum brake.
G-cam disc brake.
P-cam disc brake.
Q.37
Submit
Blocking is used to:
Prevent cargo from shifting.
Prevent cargo from being loaded too high.
Prevent cargo from being unloaded too quickly.
Q.38
Submit
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.39
Submit
Which factor does not have an impact on a person’s blood alcohol concentration (BAC)?
The number of alcoholic drinks consumed
How quickly the alcoholic drinks were consumed
The weight of the drinker
The temperature of the drinks
Q.40
Submit
When transporting a load, the cargo should be inspected:
Only at the beginning of a drive.
Only after driving a long distance.
After every break.
Q.41
Submit
Why are roads especially slippery right after it begins to rain?
The water mixes with oil and grease on the road.
Roads are naturally slippery.
Gravel often gets washed to the middle of the lane.
Tires are not usually designed to drive in rain.
Q.42
Submit
When transporting cargo, drivers must check the securement of the cargo every:
10 miles.
150 miles.
500 miles.
1,000 miles.
Q.43
Submit
Hanging meat as a cargo:
Creates a safe driving situation.
Creates an unstable load.
Should not be done.
Creates a low center of gravity.
Q.44
Submit
If mirrors are dirty before starting a trip:
They will likely become clean after driving a short distance.
It should not be a concern.
They should be cleaned before the vehicle is driven.
Q.45
Submit
When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:
Turning on your four-way flashers.
Honking your horn.
Turning on your headlights.
Turning on your windshield wipers.
Q.46
Submit
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.47
Submit
When using a fire extinguisher on a fire, you should:
Get as close to the fire as possible.
Stand as far away from the fire as possible.
Aim the extinguisher at the top of the fire.
Q.48
Submit
Which of the following is not a type of tie-down equipment?
Ropes
Straps
Velcro
Q.49
Submit
How is the parking brake released?
By tapping on the brake pedal three times
By pushing in the brake control knob
By engaging the accelerator
By tapping the accelerator twice
Q.50
Submit
When completing a driver's side parallel parking maneuver, you should:
Pull forward directly into the parking space.
Back up past the parking space, then pull forward into it.
Pull forward past the parking space, then back into it.
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