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Illinois CDL Permit Test - Class A

Number of questions: 50
Passing score: 40
Directions: This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds. To receive this license, applicants must pass a 50-question test. Test questions come from the Illinois Commercial Drivers License Study Guide. To pass, applicants must answer 40 questions correctly. 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 A CDL are: Hazardous materials, Tank, Passenger, Doubles/Triples, HazMat, Tank, Air Brakes, School bus and Charter.
You have made error so far
Passing grade —
10 or fewer errors
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1.
What does the air compressor governor do?
Controls when the air compressor pumps air into the air storage tanks.
Controls how quickly air leaves the air storage tanks.
Controls the temperature of the air entering the air storage tanks.
Controls the temperature of the air leaving the air storage tanks.
2.
Where must placards be placed?
Only on the front of a vehicle
On the front, back and both sides of a vehicle
Only on the driver’s side of a vehicle
Only on the passenger's side of the vehicle
3.
If being shipped on either a flatbed trailer or a trailer without sides, cargo must be:
Glued to the bed.
Strapped down.
Loose to allow it to shift when the vehicle turns.
Heavy enough that it won’t shift.
4.
If convicted of a traffic violation, you must inform your employer ____ of the violation.
Within three hours
Within a week
Within 30 days
Within a year
5.
Vehicles with dual air brake systems:
Maintain full-capacity air pressure in the braking systems even when the vehicle is not running.
Maintain some air pressure in the braking systems when the vehicle is not running.
Must be run to build enough air pressure to brakes to operate properly.
Do not need time to build air pressure before a trip.
6.
When checking tires, finding which of the following is not a cause for concern?
Too much air pressure
Too little air pressure
Radial and bias-ply tires used together
Tread of at least 2/32 an inch on rear tires
7.
What should you do if the coolant temperature gauge rises above the highest safe temperature?
Continue to drive.
Pull over and find out what the problem is.
Run the air conditioner.
Turn up the radio.
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