Under NAC 624.220, what work does Nevada subclassification C-4E Drywall authorize?
Installation
Question · Easy
Per IBC 2018 Table 2508.1, gypsum board and gypsum panel products shall be assembled and installed in compliance with which standards?
Under IBC 2018 Section 2508.3, where must the edges and ends of gypsum board occur in a single-ply application?
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Per IBC 2018 Section 2504.1.1, what is the minimum nominal thickness of wood supports for gypsum board?
Which screw type is specified for attaching gypsum board to wood framing?
How should gypsum board typically be oriented on a wood-joist ceiling?
What is the maximum distance fasteners may be placed from the edges and ends of gypsum board?
How far should a gypsum-board fastener be driven?
Per IBC 2018 Section 2508.2.1, when may gypsum wallboard be installed?
For 1/2-inch gypsum board on walls with wood studs 16 inches on center and no adhesive, what is the maximum screw spacing?
Question · Medium
For 1/2-inch or 5/8-inch gypsum board on a ceiling with joists 16 inches on center, what is the maximum screw spacing?
What is the maximum nail spacing for gypsum board on walls?
What is the maximum nail spacing for gypsum board on ceilings?
For 1/2-inch gypsum board on walls with studs 24 inches on center and no adhesive, what is the maximum screw spacing?
A rectangular room measures 12 feet by 16 feet with 8-foot-high walls. Ignoring openings and waste, how many 4-foot by 8-foot gypsum boards are required to cover the walls only?
The same 12-foot by 16-foot room needs a single-layer gypsum ceiling. Ignoring waste, how many 4-foot by 8-foot boards are required for the ceiling only?
What is the minimum penetration of a gypsum-board screw into wood framing and through steel framing?
How should end joints of adjacent gypsum-board courses be arranged?
Why is horizontal (perpendicular) application preferred for gypsum board on wood-stud walls?
Under IBC 2018 Section 2508.3.1, fasteners at the top and bottom plates of a vertical assembly may be omitted except where?
What is the preferred single-layer gypsum thickness for a ceiling with framing spaced 24 inches on center?
1/2-inch regular gypsum board is an acceptable single-layer interior wall and ceiling product when framing is spaced a maximum of how far on center?
Per IBC 2018 Section 2508.4, adhesives used to install gypsum wallboard shall conform to which standards?
For a horizontal wood-frame gypsum diaphragm ceiling under IBC 2018 Section 2508.6.4, what is the maximum fastener spacing at all supports, including perimeter blocking?
Per IBC 2018 Table 2508.6, what is the listed shear value of a 1/2-inch gypsum diaphragm ceiling with framing 16 inches on center?
Question · Hard
What is the maximum allowable aspect ratio of a gypsum-board diaphragm ceiling under IBC 2018 Section 2508.6.1?
Per IBC 2018 Section 2508.6.3, how must the perimeter of a gypsum diaphragm ceiling be blocked?
A room is 20 feet by 24 feet with 9-foot walls. Deduct one 3-foot by 7-foot door and one 4-foot by 5-foot window, then add 10 percent waste. How many 4-foot by 12-foot gypsum boards are needed for the walls?
A 4-foot by 8-foot gypsum board is screw-applied to wood studs 16 inches on center. Using 16-inch screw spacing along each stud, including the edges, how many screws are required for that one sheet?
ASTM C1396 defines 5/8-inch Type X gypsum board by a 1-hour fire-resistance result in which qualifying assembly?
What is the primary purpose of joint tape on gypsum board?
Taping And Finishing
Which joint tape is the standard choice for fire-resistance-rated gypsum assemblies and for maximum tensile strength at the joint?
What is the purpose of the first coat of joint compound at a flat joint?
Per GA-214, what does a Level 0 gypsum finish include?
Which GA-214 finish level is the ordinary specification for walls and ceilings that will receive flat or low-sheen paint?
What additional step distinguishes a GA-214 Level 5 finish from Level 4?
How does a setting-type joint compound harden compared with a ready-mix drying-type compound?
What accessory is used to reinforce and finish an outside corner of gypsum board?
When should drying-type joint compound be sanded?
Where is a GA-214 Level 1 finish typically specified?
A GA-214 Level 2 finish is the usual specification for which of the following?
When is a GA-214 Level 3 finish typically specified?
For a GA-214 Level 4 finish, how many separate coats of joint compound are required over fastener heads and accessories?
What is the ASTM C840 / GA-216 minimum interior temperature for mixing and applying joint treatment?
The 20, 45, and 90 designations on setting-type joint compound refer to what?
Self-adhesive fiberglass mesh tape should be finished with which compound?
How are interior gypsum-board angles typically reinforced?
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