National Occupational Competency Testing Institute (NOCTI) Carpentry Practice Exam

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Prepare for the NOCTI Carpentry Exam. Study using flashcards and multiple-choice questions, each with detailed explanations and tips. Get ready for your exam with confidence!

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How long is the total run for a stair with 12 unit rises and a unit run of 10 inches?

100 inches
110 inches
120 inches
130 inches

The correct answer is: 110 inches

To determine the total run of the stairs, you can use the given unit run and the number of unit rises. The total run is calculated by multiplying the unit run by the number of unit rises. In this case, the unit run is 10 inches and there are 12 unit rises. The calculation would be: Total Run = Unit Run x Number of Rises Total Run = 10 inches x 12 Total Run = 120 inches This means that for a stairway with 12 unit rises, each having a unit run of 10 inches, the total horizontal distance covered by the stairway (the run) is 120 inches. So, the correct answer reflects the straightforward application of the formula, leading to the result of 120 inches for the total run.