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Illinois
Illinois CDL Knowledge Test Class B 1
Answers
Q.1.
When driving under wet conditions, what does a lack of spray from other vehicles indicate?
Ice has formed on the road.
The pavement is dry.
The spray is caught on the underside of the vehicle.
The tires have soaked up all the moisture.
Q.2.
If transporting 30 feet of cargo on a flatbed trailer, you should use a minimum of ____ to restrain the cargo.
One tie-down
Two tie-downs
Three tie-downs
Four tie-downs
Q.3.
If you must drive very slowly, you should:
Warn other motorists.
Drive on the shoulder.
Stay in the left lane.
Sound your horn.
Q.4.
If a vehicle has air brakes, the air compressor drive belt should be checked before each drive. In what condition should the belt be?
Loose
Tight
Cracked
Bumpy
Q.5.
If a tire fails, you should:
Use the brakes.
Stay off the brakes.
Swerve.
Wave your arms at other drivers.
Q.6.
In cold weather, an alcohol evaporator should be checked and filled:
Once a week.
Every day.
Every hour.
Once a month.
Q.7.
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.8.
How should you brake if your vehicle loses its ABS?
Brake normally.
Pump the brake repeatedly.
Push the brake pedal down as hard as you can.
Avoid using the brakes.
Q.9.
How can a person check for a leak in hydraulic brakes?
Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake pedal returns to its normal position, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake makes a squeak, there may be a problem.
Remove the rear wheel and listen for a noise when the brake pedal is depressed.
Q.10.
How much water needs to be on the surface of a road for a vehicle to hydroplane?
Usually several inches
A good amount, such as a large puddle
A small amount
None
Q.11.
During the straight line backing exercise, how many times are you permitted to exit the vehicle to check its position?
One time
Two times
Three times
Four times
Q.12.
The use of hand-held cell phones while driving:
Is permitted for drivers age 18 and older.
Is permitted for drivers age 21 and older.
Is permitted for drivers age 25 and older.
Is prohibited.
Q.13.
When doing an inspection, make sure your brake pads are:
Covered in grease.
Covered in coolant.
Covered in oil.
Free of oil and grease.
Q.14.
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.15.
A tank endorsement is:
Only required when transporting gases.
Only required when transporting liquids.
Required when transporting both liquids and gases.
Optional when transporting hazardous materials.
Q.16.
Distracted driving:
Can only be caused by physical distractions.
Can only be caused by mental distractions.
Can be caused by physical and/or mental distractions.
Can only be caused by cell phone use.
Q.17.
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.18.
An applicant will be denied a hazardous materials endorsement if they:
Are a U.S. citizen.
Are wanted for a misdemeanor.
Are wanted for certain felonies.
Already have a driver license.
Q.19.
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
Q.20.
Intrastate carriers must have what information displayed on both sides of their vehicle?
The permit number
The model number of truck
The maximum weight allowed
The destination
Q.21.
When using a turn signal, you should not:
Signal early.
Signal continuously.
Cancel the turn signal after completing the turn.
Allow the turn signal to stay on long after the turn has been completed.
Q.22.
Improperly loaded cargo can:
Look bad to others on the road.
Injure the driver during a quick stop.
Make it easier to stop.
Aid in safety.
Q.23.
What is Gross Vehicle Weight (GVW)?
The total weight of cargo
The total weight of a vehicle before cargo
The total weight of a vehicle and its cargo
The maximum weight allowed to be transported by a vehicle
Q.24.
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.25.
A danger of a large truck swerving to avoid a hazard is:
The truck may miss the object.
The truck may flip over.
The truck may stay in the same lane.
Other vehicles may do the same thing.
Q.26.
When entering a curve, you should:
Get off the roadway.
Use the shoulder.
Downshift.
Take the vehicle out of gear.
Q.27.
How many license plates must a truck tractor display?
One
Two
Three
Four
Q.28.
Of the following, which is not a way to prevent drowsiness during a trip?
Getting an adequate amount of sleep before driving
Traveling with a passenger
Scheduling trips during hours when you would not normally be awake
Avoiding medications that may cause drowsiness
Q.29.
Sending text messages while driving:
May be done if the messages are short.
Is encouraged.
Is permitted if you are asking a question of your employer.
Is not permitted.
Q.30.
If you’re unfamiliar with the area in which you must back up, you should:
Get out of your vehicle and walk around the area to become more familiar with it.
Not use both mirrors, as that can cause too much distraction.
Wait for someone else to back up in the area so you see how they do it.
Turn on your high beam headlights.
Q.31.
If a tire fails, the driver should:
Keep one hand on the steering wheel and use their other hand to wave to other drivers.
Stomp on the brakes.
Not use the brakes.
Accelerate.
Q.32.
Truck tractors with air brakes built on or after March 1, 1997 must have:
An Anti-Lock Braking System (ABS).
Bluetooth.
GPS.
A rear back-up camera.
Q.33.
If a load is 10 feet long, it should be secured by at least ____ tie-down(s).
One
Two
Three
Four
Q.34.
How often does a truck with a gross weight of more than 8,000 pounds need to be inspected?
Every four months
Semi-annually
Every three years
Every five years
Q.35.
If asked to sight-side back your vehicle into an alley, you should first:
Pull directly into the alley parking space.
Turn your vehicle to the right to position yourself directly in front of the alley.
Pull past the alley and stop perpendicular to the outer boundary.
Pull past the alley and stop parallel to the outer boundary.
Q.36.
When driving through a curve during the skills test, you should:
Veer from your lane if needed to complete the curve.
Reduce your speed after entering the curve.
Refrain from looking for other vehicles while turning.
Reduce your speed before entering the curve.
Q.37.
When asked about the vehicle's oil during the vehicle inspection test, you must be able to do all of the following, except:
Indicate where the dipstick is located.
Show that the oil level is within a safe operating range.
Show that the oil level is above the refill mark.
Show that the oil level is below the refill mark.
Q.38.
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.39.
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.40.
Parking brakes:
Should not be tested.
Should be tested, but only after driving a distance.
Should be tested before a drive.
Should be tested on a hill.
Q.41.
Brake pads should:
Be covered with grease.
Be covered with oil.
Be covered with brake fluid.
Not have any oil or grease on them.
Q.42.
If wheel bearing seals are leaking, you should:
Get the seals fixed.
Not be concerned.
Add more grease until the seal seems full.
Add brake fluid to the bearing.
Q.43.
Stopping distance can be affected by:
Speed.
Sunshine.
Time of day.
Traffic.
Q.44.
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.45.
When passing another vehicle, you should:
Make eye contact with the driver.
Assume the driver doesn’t see you.
Honk your horn.
Wait for the other driver to signal that it is safe to do so.
Q.46.
When loading a trailer, it is important to:
Place as little weight as possible over the axles.
Place an appropriate amount of weight over the axles.
Not be concerned about how the weight is distributed.
Only place weight over the axles.
Q.47.
When crossing railroad tracks, you should:
Stop on the tracks.
Change gears.
Try to pass.
Stay in your lane.
Q.48.
A thin layer of ice that forms on road surfaces is called:
White ice.
Black ice.
Green ice.
Blue ice.
Q.49.
While driving, if it is discovered a vehicle's ABS is not working, the driver should:
Put on their hazard lights.
Downshift.
Brake normally.
Use their parking brake to stop.
Q.50.
Air tank drains:
Allow rain water to enter the tank.
Are used to drain water and compressor oil from the air tank.
Should never be opened.
Must remain open during transit.
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