Precision slope is what ratio?

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Prepare for the ACE Airfield Operations Module 3 Test with a variety of interactive quizzes. Practice with multiple-choice questions that feature helpful hints and detailed explanations to ensure success on your exam!

Multiple Choice

Precision slope is what ratio?

Explanation:
A precision slope is a very gentle incline defined by the vertical change per horizontal distance. A ratio of 50:1 means for every 50 units of horizontal distance, the surface rises (or falls) by 1 unit. That’s a 2% grade, a small, controlled slope often used on airfield surfaces to ensure predictable drainage and smooth aircraft handling. The other ratios would produce noticeably steeper grades (for example, 7:1 is about 14%; 20:1 is about 5%; 34:1 is about 2.9%), which aren’t described as precision slopes. So the correct ratio is 50:1.

A precision slope is a very gentle incline defined by the vertical change per horizontal distance. A ratio of 50:1 means for every 50 units of horizontal distance, the surface rises (or falls) by 1 unit. That’s a 2% grade, a small, controlled slope often used on airfield surfaces to ensure predictable drainage and smooth aircraft handling. The other ratios would produce noticeably steeper grades (for example, 7:1 is about 14%; 20:1 is about 5%; 34:1 is about 2.9%), which aren’t described as precision slopes. So the correct ratio is 50:1.

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