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The parking brake should not be engaged.
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Wheels should be chocked.
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The engine should be running.
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The gearshift should be in first gear.
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Illinois CDL Permit Test - Knowledge Test Class B
(From the 2021 Illinois CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Test questions come from the Illinois Commercial Drivers License Study Guide. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination Vehicles, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes, School bus and Charter.
Passing grade —
10 or fewer errors
advertising
1.
When checking the engine compartment:
2.
If the air pressure warning light comes on, you should:
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Continue to drive normally.
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Drive with one foot on the accelerator and one foot on the brake pedal.
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Call the local law enforcement agency.
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Safely exit the roadway and stop.
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3.
During a basic vehicle control skills test, you may be asked to:
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Pull forward into a parking space.
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Drive in a figure eight.
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Alley dock.
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Sound your horn.
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4.
If you are being tailgated, you should:
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Drive on the shoulder.
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Pull off the roadway.
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Drive faster.
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Allow the vehicle to pass.
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5.
Mirror adjustment can only be checked properly if:
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The trailer is straight.
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There is no trailer attached to the tractor.
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The vehicle is on a slight incline.
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The vehicle is on a slight decline.
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6.
When approaching a curve during the on-road driving test, you must do all of the following, except:
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Check traffic thoroughly in all directions.
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Reduce your speed before entering the curve.
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Keep your vehicle in its lane.
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Steadily use the brakes throughout the curve.
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7.
What can happen if the air pressure gets too low in an air brake system?
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The brakes may squeak.
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The brakes may not work.
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The brakes may be sluggish.
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The brakes will be very sensitive.
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