Skip to main content

Class 4 Commercial Driver Practice · Question

To maintain a safe 'visual lead time,' how far ahead should a commercial driver be scanning the road?

Scanning 12 to 15 seconds ahead (about one block in the city or 500m on the highway) allows you to anticipate hazards and traffic changes before they become eme

Start free practice for Class 4 Commercial Driver Practice

300 questions · no signup required · 40 free questions per day

Start Practice →

Question: To maintain a safe 'visual lead time,' how far ahead should a commercial driver be scanning the road?

Answer options:

  • 3 to 5 seconds ahead
  • 5 to 8 seconds ahead ✅ 12 to 15 seconds ahead
  • 20 to 30 seconds ahead

Correct answer: 12 to 15 seconds ahead

Explanation: Scanning 12 to 15 seconds ahead (about one block in the city or 500m on the highway) allows you to anticipate hazards and traffic changes before they become emergencies.

Start free practice for Class 4 Commercial Driver Practice

300 questions · no signup required · 40 free questions per day

Start Practice →

More about Class 4 Commercial Driver Practice

Related Questions

More for Class 4 Commercial Driver Practice candidates

Ready to practice?

Free, no signup required. Build a wrong-question list as you go.

Start Free Class 4 Commercial Driver Practice Practice →

Related courses

Other Canadian certifications candidates often prepare for alongside this one.