— Local Jurisdiction Practice Exam 2026
| 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. A drywall contractor is installing 5/8-inch Type X gypsum board on a wall
assembly required to provide a fire-resistance rating. Which installation
practice is most critical to maintaining the tested assembly?
A. Using a lighter-weight joint compound
B. Installing the gypsum board exactly according to the listed assembly
C. Increasing the screw spacing to reduce fastener count
D. Replacing Type X board with standard gypsum board of equal thickness
Answer: Installing the gypsum board exactly according to the listed assembly
Rationale: Fire-resistance ratings are based on tested or approved assemblies.
Board type, thickness, layers, fastening, joints, framing, insulation, and other
components must conform to the approved assembly.
, 2. When installing gypsum board over wood framing, which condition
presents the greatest risk of nail or screw pops?
A. Properly seasoned framing
B. Excessive framing movement or shrinkage
C. Using the correct fastener length
D. Maintaining consistent room temperature
Answer: Excessive framing movement or shrinkage
Rationale: Wood movement can cause fasteners to move relative to the gypsum
board, producing visible pops, cracking, or joint deterioration.
3. A contractor is installing a two-layer gypsum board fire-resistance
assembly. Why is staggering the joints between layers important?
A. It eliminates the need for joint compound
B. It improves paint adhesion
C. It reduces continuous joints through the assembly
D. It allows thinner gypsum board to be used
Answer: It reduces continuous joints through the assembly
Rationale: Staggering joints reduces direct paths through the assembly and is
commonly required by tested fire-resistance designs.
4. Which fastener is generally appropriate for attaching gypsum board to cold-
formed steel framing?
A. Smooth common nail
B. Drywall screw designed for metal framing
C. Roofing nail
D. Finish nail
Answer: Drywall screw designed for metal framing
,Rationale: Fasteners must be compatible with the framing material and board
thickness. Screws designed for steel framing provide the required penetration
and holding characteristics.
5. A drywall installer encounters a framing member that is slightly recessed
from the adjacent studs. What is the best corrective approach before board
installation?
A. Force the gypsum board against the recessed stud
B. Leave the condition because joint compound will correct it
C. Shim or otherwise correct the framing plane
D. Increase screw length substantially
Answer: Shim or otherwise correct the framing plane
Rationale: Drywall installation depends on a reasonably uniform framing plane.
Correcting framing irregularities before boarding reduces waves, cracking, and
finishing problems.
6. Which characteristic distinguishes Type X gypsum board from ordinary
gypsum board?
A. Greater water absorption
B. Enhanced fire-resistance characteristics
C. Higher thermal conductivity
D. Increased flexibility
Answer: Enhanced fire-resistance characteristics
Rationale: Type X gypsum board is manufactured with additives and
construction characteristics intended to provide enhanced fire resistance when
used in approved assemblies.
7. A contractor is installing moisture-resistant gypsum board in a bathroom.
Which statement is most accurate?
A. Moisture-resistant gypsum board can substitute for waterproofing in all wet
areas
, B. Moisture-resistant gypsum board is completely waterproof
C. Moisture-resistant gypsum board has improved moisture resistance but is not
itself a complete waterproofing system
D. Moisture-resistant gypsum board should never be used in bathrooms
Answer: Moisture-resistant gypsum board has improved moisture resistance but
is not itself a complete waterproofing system
Rationale: Moisture-resistant panels are not automatically waterproof. Wet-
area assemblies may require approved waterproof membranes or other systems
depending on the application.
8. When fastening gypsum board to wood framing, why should screws
generally be driven slightly below the surface without breaking the paper?
A. To improve insulation performance
B. To permit proper joint finishing while preserving the board's face paper
C. To increase board thickness
D. To eliminate the need for joint compound
Answer: To permit proper joint finishing while preserving the board's face paper
Rationale: Overdriving damages the face paper and reduces fastener holding
capacity, while underdriving leaves the head proud and interferes with finishing.
9. A screw head has broken through the face paper of a gypsum panel. What
is the preferred correction?
A. Leave it exposed
B. Drive it deeper until the screw disappears
C. Install another properly driven fastener nearby and treat the damaged area
appropriately
D. Remove the entire gypsum panel immediately
Answer: Install another properly driven fastener nearby and treat the damaged
area appropriately