Illinois cdl Class B Knowledge Test - 1
Number of questions: 50
Passing score: 80%
Acceptable number of errors: 10
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.
To DMV Handbooks9. 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.