Arizona (Az) ROC Trade Exam B-3 License Exam| Questions and correct Answers| Updated 2026

Arizona (Az) ROC Trade Exam B-3 License Exam| Questions and correct Answers| Updated 2026 Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and penetrate the framing a minimum of how much? 1-1/2 inches When framing openings in floors with a header and trimmer joists, what maximum header joist span is allowed with a single member header? 4 feet Above the handrail and below the head, what is the minimum clear opening on a stairwell? 36 inches When installing vinyl siding, how much overlap should you allow for thermal expansion? 1 inchWhat is the first step you should take when applying specialty finishes? Read the manufacturers use instructions. What is the appropriate gap between gypsum board and a tub surround? 1/4 inch Sprayed fire resistant materials are identified by ____________ and thickness required for a given rating. Density. What is the most important factor in determining the "R" value of blown in insulation? Density. Refer to the illustration of a 2 story house w/ lap siding plans, (complete set of plans at the test center), What are the lengths of the second floor trusses?