Using a 1/4" scale, what does 3 1/2" represent in actual feet?

Prepare for the North Carolina Contractors Carpentry and Building Construction Exam. Use flashcards and multiple choice questions with hints and explanations. Ace your exam with confidence!

To determine what 3 1/2 inches represents in actual feet when using a 1/4" scale, it's important to understand how scales work in architectural drawing. A 1/4" scale means that every quarter inch on the drawing is equivalent to one actual foot in reality.

First, convert 3 1/2 inches into a decimal form for easier calculations, which is 3.5 inches. When using a 1/4" scale, you need to establish the equivalent in actual feet by performing the following calculation:

  1. Convert inches to feet: There are 12 inches in a foot, so you first divide the number of inches by 12 to find out how many feet that is in reality.

3.5 inches ÷ 12 = 0.2917 feet (approximately)

  1. Calculate the actual feet using the scale: Since each inch on the drawing represents 4 feet in actual size (because 1/4" corresponds to 1 foot), you multiply the result by 4.

3.5 inches × 4 = 14 feet

Thus, 3 1/2 inches on a 1/4" scale drawing represents 14

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