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Illinois CDL Permit Test - Knowledge Test Class B

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.
You have made error so far
Passing grade —
10 or fewer errors
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1.
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.
2.
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
3.
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.
4.
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.
5.
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.
6.
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.
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.
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