What is the slope of visual runways according to standard regulations?

The correct answer regarding the slope of visual runways according to standard regulations is 20:1. This means that for every 20 units of horizontal distance, there is a 1 unit rise in vertical distance.

This slope is significant because it ensures that aircraft approaching or departing from the runway have adequate visual references and necessary glide path for landing and takeoff. A 20:1 slope provides a balance between safety and usability, allowing pilots to maintain a proper approach while also considering ground obstacles and terrain.

While steeper slopes can be used for certain types of precision approaches or instrument landing systems, the 20:1 slope is a widely accepted standard for visual runways, reflecting best practices for runway design and pilot training.

Other options represent either steeper or flatter slopes, which would not typically meet the visual runway requirements.