A temporary brace detail calls for 10d common nails. What length matches a common 10d nail?
Correct Answer
C) 3 in.
A common 10d nail is 3 in. long. Other choices are shorter penny sizes or a nonmatching length.
Why This Is the Correct Answer
A common 10d nail is 3 in. long. Other choices are shorter penny sizes or a nonmatching length.
Why the Other Options Are Wrong
Option A: 2 in.
Choice A (2 in.) is rejected because 2 in. is a different published number than the cited Nail sizes value; Common nail penny sizes supports 3 in. The cited answer is 3 in.
Option B: 2-1/2 in.
In wood framing, 2-1/2 in. is the wrong selection for Nail sizes: 2-1/2 in. is a different published number than the cited Nail sizes value; Common nail penny sizes supports 3 in.
Option D: 3-1/4 in.
Choice D gives 3-1/4 in. Its specific error: 3-1/4 in. is a different published number than the cited Nail sizes value; Common nail penny sizes supports 3 in. The accepted answer is 3 in.
Memory Technique
File nail sizes under a release point: condition first, number or duty second, answer 3 in.
Reference Hint
Open Carpentry and Building Construction, 2016; use the index entry or section for "Common nail penny sizes" to confirm that A common 10d nail is 3 in.
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