01:05
01:07
01:10
01:12
Answer is Right!
Answer is Wrong!
The correct answer is A. 1 : 5.
The slope of the transitional surface for A, B and C type of runway shall be 1 : 5. This means that for every 5 feet of horizontal distance, the surface should rise 1 foot vertically. This slope is designed to provide a smooth transition from the runway to the surrounding terrain.
Option B, 1 : 7, is too steep. This would create a jarring transition for aircraft landing on the runway. Option C, 1 : 10, is too shallow. This would not provide enough of a transition, and aircraft could potentially skid off the runway. Option D, 1 : 12, is also too shallow. For the same reasons as Option C, it would not provide enough of a transition, and aircraft could potentially skid off the runway.