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International Residential Code Exam Questions and Answers.
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---5januari 20252024/2025A+
- InternationalResidentialCodeExamQuestionsand 
Answers. 
What is the nominal thickness of a ridge board? - Correct Answer Not less than 1" 
How many jack studs will be required for a 2 - 2X12 header in an interior bearing wall 
supporting one floor only, building width of 28', and a span of 7'0"? - Correct Answer 2 jack 
studs supporting each end 
What is the maximum hole that may be cut in a 2 X 12 nominal floor joist? - Correct Answer 
4" (1/3rd the width) 
What size strap is req...
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