What type of flight rules can be characterized by the pilot(s) relying almost exclusively on line of sight?

Question

Quizplus · Accepted Answer

Visual flight rules (VFR) are characterized by the pilot(s) relying almost exclusively on line of sight. VFR flight requires good weather conditions and visibility to ensure safety. It is the opposite of instrument flight rules (IFR), which rely on instruments and require specific training and certification for pilots to operate. Traditional or emergency flight rules are not commonly used terms in aviation.

What Type of Flight Rules Can Be Characterized by the Pilot(s)