Question R15 Q8 - NSB Regional 2007

Consider an electrician who is about to drill holes though a series of 2-inch by 10-inch by 16-foot floor joists that are supported only at their ends by walls. Which of the following hole locations would DECREASE the load strength of each joist the LEAST:

W) 7 feet in from one of the supporting walls near the bottom edge

X) 7 feet from one of the supporting walls near the top edge

Y) 1 foot from one of the supporting walls near the bottom edge

Z) 1 foot from one of the supporting walls half way down from the top edge

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