A positive drainage slope away from a house foundation of 5% is equal to a ____ inch drop in 10 feet.

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Prepare for the Virginia Class A Contractor License Exam. Study using flashcards and multiple choice questions, each question equipped with hints and explanations. Ace your exam!

Multiple Choice

A positive drainage slope away from a house foundation of 5% is equal to a ____ inch drop in 10 feet.

Explanation:
A 5% drainage slope means a vertical drop of 0.6 inches for every 1 foot of horizontal run (0.05 × 12 inches). Over 10 feet, that’s 0.6 inches/foot × 10 feet = 6 inches. So the vertical drop in 10 feet is 6 inches.

A 5% drainage slope means a vertical drop of 0.6 inches for every 1 foot of horizontal run (0.05 × 12 inches). Over 10 feet, that’s 0.6 inches/foot × 10 feet = 6 inches. So the vertical drop in 10 feet is 6 inches.

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