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West Virginia
West Virginia CDL Knowledge Test Class B 1
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Q.1
Submit
Most drivers are the least alert:
In the morning.
In cold weather.
At night.
After work.
Q.2
Submit
Poisonous fumes can enter the 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.3
Submit
For safety purposes, when should you turn off a retarder?
When the roadways are slippery
When you are carrying a passenger
When you are carrying a heavy load
When driving in heavy traffic
Q.4
Submit
The parking brake should be:
Used whenever you park the vehicle.
Used while driving.
Set when driving in bad weather.
Used to stop the vehicle in normal driving.
Q.5
Submit
Vehicles with dual air brake systems:
Have air pressure in the braking system even when the vehicle is not running.
Maintain some air pressure in the braking system when the vehicle is not running.
Must be run to build air pressure to allow the brakes to operate properly.
Maintain air pressure when shut off for periods of less than four hours.
Q.6
Submit
Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:
Are necessary for the proper function of the air brake system.
Should be added if low.
Should be removed regularly.
Are not concerns.
Q.7
Submit
Air tank drains:
Allow rain water to enter air tanks.
Are used to drain water and oil from air tanks.
Should never be opened.
Must remain open while driving.
Q.8
Submit
When preparing to enter traffic, you should do all of the following, except:
Wait for a large gap between vehicles.
Be prepared for your vehicle to accelerate slowly, especially if it is loaded.
Make sure you can completely cross traffic, if necessary, without interfering with traffic.
Assume other drivers will make room for your much larger vehicle.
Q.9
Submit
Once stopped as a part of the stop/start maneuver, you should:
Use the four-way flashers.
Not use the four-way flashers because it is just a test, not an emergency.
Leave the vehicle in first gear.
Park in front of a fire hydrant.
Q.10
Submit
How many air storage tanks are used in an air brake system?
Two tanks
Four tanks
Six tanks
The number varies.
Q.11
Submit
If you experience a loss of hydraulic pressure, you should do all of the following, except:
Downshift.
Pump the brakes.
Accelerate.
Use the parking brake.
Q.12
Submit
Passive railroad crossings:
Are controlled by flashing lights.
Are not controlled by any type of traffic control device.
Have gates that lower when trains are approaching.
Should never be crossed by a CMV.
Q.13
Submit
Steering that feels heavy is often a sign of:
Rear tire failure.
Front tire failure.
A shifting load.
The coolant overheating.
Q.14
Submit
When you leave your vehicle, you should:
Apply the parking brake.
Apply the regular brake.
Leave the keys in the ignition.
Q.15
Submit
To confirm that a trailer has ABS, you can:
Look under the trailer for wheel speed sensors coming from the back of the brakes.
Look under the hood for the ABS sticker.
Look at the tires.
Remove a tire and look for the ABS sensor on the axle.
Q.16
Submit
If exiting a bus during the basic vehicle control skills test, you must:
Keep both hands on the handrail.
Not touch the handrail.
Maintain a firm grasp on the handrail.
Rush down the stairs.
Q.17
Submit
What do headers do?
Protect the driver during a crash
Provide a place for storage
Ensure that controls are accessible
Act as wind guards
Q.18
Submit
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.
Q.19
Submit
In a newer vehicle, you apply the parking brake:
By using a diamond-shaped yellow knob.
By using a round red knob.
By using a square green knob.
By using a black round knob.
Q.20
Submit
During the skills test, if making a turn that requires a stop, you should:
Skid to a stop.
Stop after the stop line to get a better view.
Allow your vehicle to roll.
Keep the front wheels aimed straight ahead.
Q.21
Submit
What is the minimum permitted size of a placard?
Four square inches
Seven square inches
10 ¾ square inches
32 square inches
Q.22
Submit
To stop a vehicle using air brakes:
The brake pedal should be pressed.
The brake pedal should be lifted.
The brake knob should be pulled out.
The brake knob should be pushed in.
Q.23
Submit
An item that is 40 feet long placed on a flatbed trailer should be secured by at least ____ tie-down(s).
One
Two
Three
Four
Q.24
Submit
The maximum speed limit in a school zone where children are present, unless otherwise posted, is:
15 mph.
25 mph.
30 mph.
40 mph.
Q.25
Submit
To correct a drive-wheel braking skid, a driver should do all of the following, except:
Remove your foot from the brake pedal.
Turn quickly in the direction of the skid.
Countersteer after the vehicle is back on course.
Accelerate.
Q.26
Submit
To use the stab braking method, you should:
Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process.
Apply the brakes about halfway, but allow the wheels to keep rolling.
Apply the brakes completely until the wheels lock up and the vehicle stops.
Apply the emergency brake until the vehicle starts to slow.
Q.27
Submit
When starting a vehicle, the oil pressure should:
Slowly build up pressure over a few minutes.
Come up to a normal level within a few seconds.
Start high, then decrease quickly while the engine runs.
Q.28
Submit
Too little weight on a steering axle can result in:
Poor traction.
Increased visibility.
Longer stopping distances.
Improved gas mileage.
Q.29
Submit
A driver should always:
Stay in their lane.
Have an emergency plan.
Stay in the left lane.
Drive above the speed limit.
Q.30
Submit
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
Q.31
Submit
The air pressure in a dual air brake system should build from 85 to 100 psi within:
Two minutes.
15 seconds.
10 minutes.
45 seconds.
Q.32
Submit
When stopped on the side of the road, the driver should:
Keep their side door open.
Turn on their emergency flashers.
Wave their arms.
Turn off all their lights.
Q.33
Submit
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.34
Submit
An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.
100 feet
250 feet
300 feet
450 feet
Q.35
Submit
If you realize you may be running late to your destination, you should:
Drive faster.
Drive while using flashing lights so other road users move out of your path.
Drive at a safe speed and arrive when you arrive.
Get upset.
Q.36
Submit
Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.
10 psi
25 psi
50 psi
100 psi
Q.37
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.38
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.39
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.40
Submit
What is the Gross Vehicle Weight Rating (GVWR)?
The maximum permitted total weight of a vehicle and its cargo
The minimum permitted weight of a trailer
The maximum permitted weight of a trailer and its contents
The maximum permitted weight of only a tractor
Q.41
Submit
During a basic vehicle control skills test, you may be asked to:
Alley dock.
Parallel park to your right.
Parallel park to your left.
All of the above.
Q.42
Submit
Cargo on flatbed trailers should be:
Tied down.
Glued down.
Left loose.
Pushed to one side.
Q.43
Submit
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.44
Submit
During a vehicle inspection, ensure that the landing gear is:
Retracted.
Fully raised.
More worn on the passenger's side than on the driver's side.
Well lit.
Q.45
Submit
When leaving your vehicle, you should:
Apply the parking brake.
Apply the air brakes.
Not apply any brake.
Disconnect the trailer.
Q.46
Submit
When stopping, the brake pedal:
Should be pressed down quickly.
Should be pressed down gradually.
Should be lifted up quickly.
Should be lifted up gradually.
Q.47
Submit
When approaching a downgrade, how can you reduce the amount of braking that will be needed?
Switch to a higher gear.
Switch to a lower gear.
Switch to neutral.
Turn off the engine.
Q.48
Submit
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.49
Submit
When an engine is started:
The brakes should be locked up.
Warning lights should come on and then quickly turn off.
The coolant temperature will decrease.
The hood must be open.
Q.50
Submit
The most important reason to inspect your vehicle before a trip is:
To ensure safety.
To maximize gas mileage.
To wake up before the drive.
To fill up time.
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