Illinois CDL General Knowledge Test

About the General Knowledge Test

Master the fundamental CDL knowledge covering safe driving practices, traffic laws, and vehicle operation.

Test Requirements

• Number of questions: 50
• Correct answers to pass: 40 out of 50
• Passing score: 80%
• Time limit: 60 minutes

Study Tips

• Study all sections of your state CDL handbook thoroughly
• Pay special attention to hours of service regulations
• Understand vehicle inspection procedures
• Learn federal and state traffic laws

What to Expect

This practice test simulates the actual Illinois CDL General Knowledge exam. Each question is multiple choice with four possible answers. You must score at least 40 out of 50 to pass.

The questions are based on the official Illinois CDL handbook and cover topics including:

• Federal Motor Carrier Safety Regulations (FMCSR)
• Illinois-specific CDL requirements
• Safe driving practices and procedures
• Vehicle operation and maintenance