FAA Ground School Practice Test

What is the objective of maintaining the proper glide path when using a VASI?

1. Ensuring safe fuel management during landing

2. Safe obstruction clearance in the approach area

3. Minimizing travel time during approach

4. Ensuring maximum visual navigation

The correct answer is: Safe obstruction clearance in the approach area

Maintaining the proper glide path when using a Visual Approach Slope Indicator (VASI) is crucial for safe obstruction clearance in the approach area. The VASI provides cues to pilots about their altitude in relation to an ideal glide slope to the runway. By following the VASI indicators, pilots can ensure they are on the correct glide path, thereby avoiding obstacles that may be present in the approach zone. This is particularly important in areas where terrain or structures could pose risks during landing. The VASI system provides visual guidance that helps pilots achieve the necessary descent rate while ensuring a safe approach distance from any potential hazards, promoting both safety and precision in landing operations.