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Driving Test
Illinois
Illinois CDL Knowledge Test Class B 2
Answers
Q.1.
When approaching a curve during the on-road driving test, you must do all of the following, except:
Check traffic thoroughly in all directions.
Reduce your speed before entering the curve.
Keep your vehicle in its lane.
Steadily use the brakes throughout the curve.
Q.2.
When checking the engine compartment:
The parking brake should not be engaged.
Wheels should be chocked.
The engine should be running.
The gearshift should be in first gear.
Q.3.
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
Q.4.
During a basic vehicle control skills test, you may be asked to:
Pull forward into a parking space.
Drive in a figure eight.
Alley dock.
Sound your horn.
Q.5.
If the air pressure warning light comes on, you should:
Continue to drive normally.
Drive with one foot on the accelerator and one foot on the brake pedal.
Call the local law enforcement agency.
Safely exit the roadway and stop.
Q.6.
Mirror adjustment can only be checked properly if:
The trailer is straight.
There is no trailer attached to the tractor.
The vehicle is on a slight incline.
The vehicle is on a slight decline.
Q.7.
What can happen if the air pressure gets too low in an air brake system?
The brakes may squeak.
The brakes may not work.
The brakes may be sluggish.
The brakes will be very sensitive.
Q.8.
When driving on packed snow, you should reduce your speed:
By at least one-half.
By about one-third.
By about one-quarter.
By about one-eighth.
Q.9.
When backing, a helper:
Should be used whenever possible.
Often adds to the confusion of backing.
Should only be used if the driver is not feeling confident.
Would likely get in the way.
Q.10.
Once cargo is secured:
You may complete an entire trip without checking it.
You can drive at least eight hours without checking it.
You should check it every three hours or 150 miles.
You should not check it.
Q.11.
The maximum height permitted for all vehicles on Illinois highways is:
8 feet.
12 feet, 2 inches.
13 feet, 6 inches.
19 feet.
Q.12.
When the spring brakes are activated in a vehicle with air brakes, you should never:
Turn on the lights.
Turn the vehicle off.
Push the brake pedal down.
Open the trailer doors.
Q.13.
The best way to avoid glare at night from oncoming vehicles is to:
Wear sunglasses.
Close your eyes as vehicles approach.
Look to the right side of road.
Use your high beams.
Q.14.
What happens when a vehicle hydroplanes?
The tires lose contact with the road.
The tires have extra traction.
The vehicle is easier to control.
The vehicle becomes heavier.
Q.15.
During a pre-trip inspection, belts in the engine compartment should be:
Loosened.
Checked for tightness.
Inspected only if they seem frayed.
Left alone and not inspected.
Q.16.
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.17.
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.18.
Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Kidnapping
Smuggling
Immigration violations
Speeding
Q.19.
When traveling with cargo, the cargo should be checked:
Only before the trip.
Before the trip and after the first 50 miles.
Only by loading personnel.
Only after arriving to the final destination.
Q.20.
When approaching a railroad crossing, you should:
Increase your speed to get across the tracks as quickly as possible.
Roll your window down to listen for a train.
Rely on traffic control signals.
Never try to outdrive an approaching train.
Q.21.
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.22.
The brake pedal is part of which braking system?
The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system
Q.23.
How much water is needed on a road surface for a vehicle to hydroplane?
Usually several inches
A good amount, such as a large puddle
A small amount
No water
Q.24.
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.25.
A thin layer of ice that forms on road surfaces is called:
White ice.
Black ice.
Green ice.
Blue ice.
Q.26.
Cargo on flatbed trailers should be:
Tied down.
Glued down.
Left loose.
Pushed to one side.
Q.27.
During the on-road driving test, you should:
Develop your own route to show off your driving skills.
Listen to directions from the examiner.
Bring a passenger to ride with you.
Drive in an unsafe manner.
Q.28.
When checking the exhaust system, it should be:
Loose.
Leaking.
Fastened securely.
Cracked.
Q.29.
If a vehicle is equipped with power steering, the hoses should be checked:
For leaks.
To ensure that they are still clear.
To ensure that they are connected to the battery.
For the proper amount of brake fluid.
Q.30.
If another driver is tailgating you, you should:
Move into the left lane.
Speed up.
Increase the space in front of your vehicle.
Flash your lights.
Q.31.
After an accident, flares should be used with caution because:
There may be spilled fuel on the ground that could ignite.
Other drivers may not see the flares.
Flares are expensive.
Other drivers may get confused about what is happening.
Q.32.
Which of the following statements is correct?
Rims with a missing lug nut are acceptable if there are at least four other lug nuts on the rim.
A cracked lock ring is acceptable if the vehicle is being driven at speeds under 55 mph.
A missing clamp is dangerous and should be corrected.
Welded repairs are acceptable for wheels on rear axles.
Q.33.
While driving downhill, you should brake until you reach a speed that is ____ below your safe speed, then release the brake pedal.
5 mph
10 mph
15 mph
20 mph
Q.34.
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.35.
When driving, your mirrors should:
Not be used, as they are distracting.
Not be used unless there is traffic.
Be checked regularly.
Be checked regularly, but only if it is cloudy.
Q.36.
Which of the following is not a good way to reduce crashes when turning right?
Turn slowly.
Keep the tail end close to the curb.
Keep an eye on oncoming traffic.
Allow open space on your right side.
Q.37.
A vehicle inspection:
Is a waste of time.
Is helpful in identifying minor issues before they become major problems.
Should not be done by the driver.
Should be performed once a month.
Q.38.
When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
Slack adjuster.
Axle.
Brake drum.
Alcohol evaporator.
Q.39.
If a driver operating a CMV refuses chemical testing when requested by an officer, the driver will:
Receive a ticket.
Have their driving privileges revoked for two months.
Have their driving privileges revoked for 12 months.
Be asked to drive straight home.
Q.40.
Most heavy trucks with manual transmissions require ____ to change gears.
Single clutching
Double clutching
Triple clutching
Quadruple clutching
Q.41.
Where is the safety relief valve usually located?
Near the rear brake
Near the front brake
In an air tank
On the dashboard
Q.42.
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.43.
When loading a trailer, weight should be:
Placed as high as possible.
Placed as low as possible.
Placed only on the left side, if possible.
Placed only on the right side, if possible.
Q.44.
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.45.
If a person operates in both excepted and non-excepted intrastate commerce, which type of license should the driver select?
Either excepted or non-excepted
Excepted
Non-excepted
Traditional
Q.46.
Which of the following is not another name for convex mirrors?
Fisheye mirrors
Spot mirrors
Bug-eye mirrors
Flat side mirrors
Q.47.
When traveling down a steep downgrade:
The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.
Q.48.
If a vehicle gets stuck on a railroad track, the driver should:
Stay in the vehicle and try to restart the vehicle.
Get out of the vehicle and walk away from the tracks.
Try to flag down another vehicle to give them a push.
Wait in the vehicle for a law enforcement officer to arrive.
Q.49.
The air entering air storage tanks may contain:
Water and compressor oil.
Frost.
Gravel.
Antifreeze.
Q.50.
Stopping distance can be affected by:
Speed.
Engine oil.
Time of day.
Traffic.
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