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100+ Free NV C-17C Drywall Practice Questions

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2026 Statistics

Key Facts: NV C-17C Drywall Exam

20 Q

Official Exam Questions

PSI Nevada Contractor CIB updated 3/25/2026

70%

Passing Score

PSI Nevada Contractor CIB updated 3/25/2026

1 hour

Time Allowed

PSI Nevada Contractor CIB updated 3/25/2026

USD 95

PSI Exam Fee (one portion)

PSI Nevada Contractor CIB updated 3/25/2026

Open Book

Book Policy

PSI Nevada Contractor CIB updated 3/25/2026

Nevada C-17C Drywall Contractor Examination is the official NSCB/PSI open book exam: 20 questions, 70% (14 of 20 points), 1 hour, USD 95 (bulletin 270, updated 3/25/2026). Official delivery: English.

Sample NV C-17C Drywall Practice Questions

Try these sample questions to test your NV C-17C Drywall exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under NAC 624.340, what work does Nevada C-17C authorize that distinguishes it from C-17a lathing and C-17b plastering?
A.Selection and application of wood or metal lath only, with no coating of the base
B.Application of sand-cement-lime plaster and the lath that receives it
C.Painting, wallcovering, and decorative coating of already-finished interiors
D.Installation and coating of gypsum wallboard and sheathing, including suspended gypsum-board ceilings
Explanation: NAC 624.340(2)(c) defines C-17C as the installation and coating of gypsum wallboard and sheathing, including a system of suspended ceilings made of gypsum wallboard. That is gypsum hang-and-coat work inside the C-17 lathing-and-plastering family, not lath-only (C-17a), conventional plaster (C-17b), or C-4 painting.
2When hanging gypsum panel products on both ceilings and walls of the same room, which sequence does GA-216 require?
A.Hang whichever surface is fire-rated first, regardless of location
B.Hang walls and ceiling in any order if joints will be taped the same day
C.Apply panels to the ceiling first, then to the walls
D.Apply wall panels first so the ceiling can rest on the wall edges
Explanation: GA-216 section 4.6.1 requires gypsum panel products to be applied first to ceilings and then to walls. Ceiling boards then bear on the wall panels, the wall boards support the ceiling edges, and the wall-ceiling intersection can be finished as a floating interior angle.
3IBC 2018 Table 2508.1 requires gypsum board and gypsum panel products to be installed in accordance with which pair of standards?
A.GA-600 alone, without an application standard
B.GA-216 and ASTM C840
C.ASTM C926 and ASTM C1063
D.ASTM C841 and ASTM C842 only
Explanation: IBC 2018 Table 2508.1 lists GA-216 and ASTM C840 as the installation standards for gypsum board and gypsum panel products. Those documents set framing spacing, fastener type and spacing, layout, and finishing. GA-600 is the fire-resistance design manual, not the hang standard.
4Per IBC 2018 Section 2508.2.1, when may gypsum wallboard, gypsum lath, or gypsum plaster be installed?
A.Only after weather protection for the installation is provided
B.As soon as the roof sheathing is nailed, even if the building is open to rain
C.Any time the ambient temperature is above freezing
D.Immediately after concrete is placed, while the slab is still curing wet
Explanation: IBC 2018 2508.2.1 states gypsum wallboard, gypsum lath, or gypsum plaster shall not be installed until weather protection for the installation is provided. Gypsum cores take on water, lose strength, and support mold. The Gypsum Construction Handbook likewise requires dry, weather-protected storage and hanging.
5What is the minimum distance from a gypsum panel edge or end to a fastener, per GA-216?
A.1/8 inch (3 mm)
B.3/4 inch (19 mm)
C.1-1/2 inches (38 mm)
D.3/8 inch (10 mm)
Explanation: GA-216 4.8.2 requires fasteners at edges or ends to be not less than 3/8 inch from the edge or end. Closer fasteners break the core and tear the face paper. Except at floating angles, they also must be not more than 1 inch from the edge or end.
6What does a perpendicular gypsum-panel application mean?
A.Panels are laminated face-to-face with no framing
B.Panels are hung only on steel studs, never on wood
C.Panel edges run at right angles to the framing members
D.Panel edges run parallel to the framing members
Explanation: GA-216 2.1.11 defines perpendicular application as gypsum panel products applied with edges oriented at right angles to framing members. That orientation is preferred on ceilings because it spans more members, reduces sag, and lets end joints land on framing.
7What makes Type X gypsum board different from regular gypsum wallboard?
A.A thinner 1/4-inch panel used only for curves
B.A core formulated for greater fire resistance as defined in ASTM C1396
C.A plastic face that does not need joint treatment
D.A cementitious core that can replace plaster in showers
Explanation: GA-216 2.2.1.8 and ASTM C1396 define Type X as gypsum board that provides greater fire resistance than regular board of the same thickness. Glass fibers and other additives in the core hold the calcined gypsum together in a fire. Regular 1/2-inch board is not a substitute in a Type X tested design.
8How must gypsum panel products be stored on a C-17C job after delivery?
A.Stacked flat on risers, dry, and protected from weather, sun, and condensation
B.Stood on the long edge against a stud wall so air can circulate
C.Left in the plastic rail-shipment wrap in the weather until hang day
D.Leaned on end in the garage so the tapered edges do not crush
Explanation: GA-216 3.3 through 3.4 and the Gypsum Construction Handbook require panels to be kept dry and stacked flat on a supported, level platform, protected from weather, sunlight, and condensation. Plastic shipping wrap is only for transit and must be removed on receipt so condensation does not form under it.
9What is the minimum nominal thickness of wood supports for lath, gypsum board, or gypsum panel products under IBC 2018 2504.1.1?
A.1 inch in the least dimension for all members
B.3-1/2 inches, because only 2x4 studs are permitted
C.5/8 inch, matching Type X board thickness
D.2 inches in the least dimension
Explanation: IBC 2018 2504.1.1 requires wood supports for lath, gypsum board, or gypsum panel products, and wood stripping or furring, to be not less than 2 inches nominal in the least dimension. The exception allows 1-by-2 furring only when it is installed over solid backing.
10For single-layer gypsum panels nailed to wood studs, what is the maximum nail spacing on walls?
A.12 inches on center
B.16 inches on center
C.8 inches on center
D.7 inches on center
Explanation: GA-216 5.2 and ASTM C840 space single nails not more than 8 inches on center on walls and 7 inches on center on ceilings. The tighter ceiling spacing resists gravity pull-through. Fire-rated designs may require a different schedule — always follow the tested listing.

About the NV C-17C Drywall Exam

The Nevada C-17C Drywall Contractor Examination is the official Nevada State Contractors Board trade examination administered by PSI Services LLC. The official exam has 20 scored questions. Passing is 70% (14 of 20 points) in 1 hour. The examination is open book. International Building Code, 2018 (allowed in center). PSI lists USD 95 for one examination portion and USD 140 if taken with CMS; otherwise USD 95 per trade exam (Candidate Information Bulletin 270, updated 3/25/2026). NSCB requires a separate CMS examination for most new applicants, plus a USD 300 application fee and a USD 600 biennial license fee. This English-language MCQ bank is a study aid, not an official PSI form. It does not replace required trade experience, board approval, fingerprints, bonding, or the official examination.

Assessment

Open Book computer-based multiple-choice. International Building Code, 2018 (allowed in center)

Time Limit

1 hour

Passing Score

70% (14 of 20 points)

Exam Fee

USD 95 (PSI Services LLC (for the Nevada State Contractors Board))

NV C-17C Drywall Exam Content Outline

30%

Installation

Installation (6 items)

30%

Taping and Finishing

Taping and Finishing (6 items)

20%

Materials

Materials (4 items)

20%

Special Applications and Accessories

Special Applications and Accessories (4 items)

How to Pass the NV C-17C Drywall Exam

What You Need to Know

  • Passing score: 70% (14 of 20 points)
  • Assessment: Open Book computer-based multiple-choice. International Building Code, 2018 (allowed in center)
  • Time limit: 1 hour
  • Exam fee: USD 95

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

NV C-17C Drywall Study Tips from Top Performers

1Distribute study time to the official bulletin 270 content outline (updated 3/25/2026)
2Use only the PSI-listed references; temporary tabs such as Post-it notes are prohibited
3Confirm NSCB experience documentation before scheduling with PSI
4This bank is an English-language MCQ study aid, not an official PSI form

Frequently Asked Questions

How many questions are on the Nevada C-17C Drywall Contractor Examination?

The official PSI examination has 20 scored questions. Passing is 70% (14 of 20 points) within 1 hour (Candidate Information Bulletin 270, updated 3/25/2026).

How much does the NV C-17C exam cost?

PSI lists USD 95 for one examination portion. Two portions cost USD 140 only if the second portion is CMS. NSCB charges a separate USD 300 application fee and USD 600 biennial license fee.

Is the NV C-17C exam open book?

Yes. PSI lists this examination as open book. International Building Code, 2018 (allowed in center)

Do I still need the CMS examination?

CMS is the required Nevada business-and-law examination. Most new applicants must pass CMS and a trade examination for the requested classification. In most cases you will not retake an exam if you have actively served as a qualified employee in the same classification within the last four years.