Licensing Examination Practice

Illinois Drywall and Taping Contractor Licensing Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• When installing gypsum board, what is the primary purpose of

staggering panel joints?

• To reduce the number of screws
• To improve paint adhesion
• To increase structural rigidity
• To speed up installation

Rationale: Staggered joints prevent weakness along a continuous seam,

improving overall wall strength.

• What is the recommended spacing for drywall screws on ceilings? 1 / 4

• 24 inches
• 12 inches
• 6 inches
• 18 inches

Rationale: Ceiling installation requires tighter fastener spacing to prevent

sagging.

3. Type X gypsum board is primarily used for:

• Moisture resistance
• Sound absorption
• Fire resistance
• Decoration

Rationale: Type X contains additives that increase fire-resistance ratings.

4. A Level 5 finish is required when:

• The wall will receive heavy texture
• The wall will be tiled
• The wall will be unpainted
• The wall will be painted with gloss or semi-gloss paint

Rationale: Glossy paints reveal even the smallest imperfections, requiring

the highest finish level.

• / 4

• What is the main purpose of paper tape in drywall finishing?
• Covering screw heads
• Strengthening joints
• Waterproofing seams
• Reducing sanding

Rationale: Paper tape reinforces joints and prevents cracking.

6. Moisture-resistant drywall is often referred to as:

• Type X board
• Green board
• Blue board
• Backer board

Rationale: Green board contains moisture-resistant paper for damp areas.

7. The primary ingredient in joint compound is:

• Plastic
• Cement
• Gypsum
• Fiberglass

Rationale: Joint compound is gypsum-based for smooth application and

sanding.

• / 4

• What is the purpose of a corner bead?
• To fill gaps
• To protect outside corners
• To hide electrical boxes
• To reduce cracking in ceilings

Rationale: Corner beads reinforce 90-degree outside corners for durability.

9. A Level 1 finish is most appropriate for:

• Living rooms
• Areas not open to view (attics)
• Kitchens
• Hallways

Rationale: Level 1 is a basic finish intended for concealed spaces only.

• Which drywall thickness is standard for interior walls?
• 1/4 inch
• 1/2 inch
• 5/8 inch
• 1 inch

Rationale: 5/8-inch drywall provides improved strength and fire resistance.

• / 4