Page 1 of 92
Nevada C-3 Carpentry Contractor Exam
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES JUST RELEASED
Nevada C-3 Carpentry Contractor Exam.
✅ Part 1: Summarized Exam Coverage – Nevada C-3 Carpentry Contractor
Nevada C-3 Classification (NAC 624.210)
The Nevada State Contractors Board (NSCB) issues the C-3 license for Carpentry, Maintenance and
Minor Repairs . This classification includes five subclassifications :
C-3a (Carpentry and Repairs) : Rough framing, form work, subflooring, siding, exterior stairs/railings,
roof decking, truss members/sheathing, and the fabrication/installation of wood and wood products for
finishing (doors, windows, cabinets, fixtures) .
C-3b (Finish Carpentry) : Installation, repair, and finishing of cabinets, casing, baseboards, countertops,
wood flooring, and millwork .
C-3c (Insulation and Weather Stripping) : Installation of building insulation, weather stripping, caulking,
and firestop systems .
C-3d (Overhead Doors) : Erection and installation of guides, tracks, counterweights, controls, and all
equipment for overhead doors .
C-3e (Drywall) : Installation, taping, finishing of drywall, gypsum panels, acoustical tile, and metal stud
framing for non-structural partitions .
Exam Requirements
• Pre-approval Required. Applicants must document a minimum of 4 years of experience within
the past 10 years, submit 4 reference certificates, and pass a background check .
• Two Exams:
1. Contractor Management Survey Exam (Business & Law) – 60 questions, 2 hours, 75%
passing.
2. C-3 Trade Exam – 56 questions (C-3/ C-3a / C-3b), 2 hours, approx. 70% passing .
• Open Book. The exams are open-book, requiring the candidate to be proficient in navigating
reference materials quickly.
Approved Reference Materials (Trade Exam)
The C-3 trade exam is based on the following references :
• 2018 International Building Code (IBC)
• 29 CFR OSHA 1926 (Construction Industry Regulations)
• Carpentry & Building Construction (2016)
• Gypsum Construction Handbook
• Guide to Handling, Installing, Bracing Wood Trusses (BCSI)
• Finish Carpenter’s Manual
Exam Content Areas (Trade)
Based on test providers, the primary topics covered in the C-3 exam include :
• Safety (OSHA) : Fall protection (6 feet threshold), PPE, ladder safety, hazcom.
• Rough Carpentry: Framing, floor joists, rafters, trusses, sheathing, subflooring, headers, sill
plates, blocking.
• Finish Carpentry: Stairs (rise/run), cabinetry, baseboards, casing, crown molding, flooring.
, Page 2 of 92
• Windows & Doors: Installation, flashing, weather-stripping, thresholds.
• Drywall: Hanging, taping, finishing levels, screw spacing.
• Building Code (IBC) : Egress, headroom, fire blocking, structural loads.
• Blueprint Reading: Symbols, scaling, dimension interpretation.
• Estimating: Material takeoffs, calculating board feet, stud counts.
1. According to OSHA 1926.501, at what minimum height must fall protection be provided for
employees engaged in residential construction activities?
A) 4 feet
B) 6 feet
C) 10 feet
D) 12 feet
Answer: B — OSHA 29 CFR 1926.501(b)(13) requires fall protection at 6 feet for residential construction.
2. What is the primary purpose of a sill plate in residential framing?
A) To support roof rafters at the peak
B) To anchor the wall framing to the foundation
C) To distribute loads across floor joists
D) To provide backing for drywall
Answer: B — The sill plate is bolted to the foundation and serves as the structural base for the wall
framing, anchoring the building securely.
, Page 3 of 92
3. Which tool is the most accurate for checking if a wall is perfectly vertical (plumb)?
A) A level held against the wall
B) A framing square
C) A plumb bob
D) A chalk line
Answer: C — A plumb bob uses gravity to provide a precise vertical reference, ensuring the wall is
straight.
4. When installing a metal plate connected wood truss, what is the minimum number of nails required
per metal connector plate according to BCSI standards?
A) 2
B) 4
C) 6
D) 8
Answer: C — BCSI guidelines specify at least six nails per plate to achieve the required shear resistance
for the connection.
, Page 4 of 92
5. What is the standard spacing for wall studs in most residential construction?
A) 12 inches on center
B) 16 inches on center
C) 19.2 inches on center
D) 24 inches on center
Answer: B — Sixteen inches on center is the most common stud spacing to provide adequate structural
support.
6. For a stairway, what is the maximum allowable riser height under most residential building codes?
A) 7 inches
B) 7.75 inches (approx 7 3/4 inches)
C) 8 inches
D) 8.25 inches
*Answer: B — The IRC/IBC typically limit risers to a maximum of 7 3/4 inches for residential stairs.*
7. A floor plan shows a wall that will be framed with 2x4s at 16 inches o.c. The wall is 24 feet long. How
many studs are required (excluding corners)?
A) 16
Nevada C-3 Carpentry Contractor Exam
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES JUST RELEASED
Nevada C-3 Carpentry Contractor Exam.
✅ Part 1: Summarized Exam Coverage – Nevada C-3 Carpentry Contractor
Nevada C-3 Classification (NAC 624.210)
The Nevada State Contractors Board (NSCB) issues the C-3 license for Carpentry, Maintenance and
Minor Repairs . This classification includes five subclassifications :
C-3a (Carpentry and Repairs) : Rough framing, form work, subflooring, siding, exterior stairs/railings,
roof decking, truss members/sheathing, and the fabrication/installation of wood and wood products for
finishing (doors, windows, cabinets, fixtures) .
C-3b (Finish Carpentry) : Installation, repair, and finishing of cabinets, casing, baseboards, countertops,
wood flooring, and millwork .
C-3c (Insulation and Weather Stripping) : Installation of building insulation, weather stripping, caulking,
and firestop systems .
C-3d (Overhead Doors) : Erection and installation of guides, tracks, counterweights, controls, and all
equipment for overhead doors .
C-3e (Drywall) : Installation, taping, finishing of drywall, gypsum panels, acoustical tile, and metal stud
framing for non-structural partitions .
Exam Requirements
• Pre-approval Required. Applicants must document a minimum of 4 years of experience within
the past 10 years, submit 4 reference certificates, and pass a background check .
• Two Exams:
1. Contractor Management Survey Exam (Business & Law) – 60 questions, 2 hours, 75%
passing.
2. C-3 Trade Exam – 56 questions (C-3/ C-3a / C-3b), 2 hours, approx. 70% passing .
• Open Book. The exams are open-book, requiring the candidate to be proficient in navigating
reference materials quickly.
Approved Reference Materials (Trade Exam)
The C-3 trade exam is based on the following references :
• 2018 International Building Code (IBC)
• 29 CFR OSHA 1926 (Construction Industry Regulations)
• Carpentry & Building Construction (2016)
• Gypsum Construction Handbook
• Guide to Handling, Installing, Bracing Wood Trusses (BCSI)
• Finish Carpenter’s Manual
Exam Content Areas (Trade)
Based on test providers, the primary topics covered in the C-3 exam include :
• Safety (OSHA) : Fall protection (6 feet threshold), PPE, ladder safety, hazcom.
• Rough Carpentry: Framing, floor joists, rafters, trusses, sheathing, subflooring, headers, sill
plates, blocking.
• Finish Carpentry: Stairs (rise/run), cabinetry, baseboards, casing, crown molding, flooring.
, Page 2 of 92
• Windows & Doors: Installation, flashing, weather-stripping, thresholds.
• Drywall: Hanging, taping, finishing levels, screw spacing.
• Building Code (IBC) : Egress, headroom, fire blocking, structural loads.
• Blueprint Reading: Symbols, scaling, dimension interpretation.
• Estimating: Material takeoffs, calculating board feet, stud counts.
1. According to OSHA 1926.501, at what minimum height must fall protection be provided for
employees engaged in residential construction activities?
A) 4 feet
B) 6 feet
C) 10 feet
D) 12 feet
Answer: B — OSHA 29 CFR 1926.501(b)(13) requires fall protection at 6 feet for residential construction.
2. What is the primary purpose of a sill plate in residential framing?
A) To support roof rafters at the peak
B) To anchor the wall framing to the foundation
C) To distribute loads across floor joists
D) To provide backing for drywall
Answer: B — The sill plate is bolted to the foundation and serves as the structural base for the wall
framing, anchoring the building securely.
, Page 3 of 92
3. Which tool is the most accurate for checking if a wall is perfectly vertical (plumb)?
A) A level held against the wall
B) A framing square
C) A plumb bob
D) A chalk line
Answer: C — A plumb bob uses gravity to provide a precise vertical reference, ensuring the wall is
straight.
4. When installing a metal plate connected wood truss, what is the minimum number of nails required
per metal connector plate according to BCSI standards?
A) 2
B) 4
C) 6
D) 8
Answer: C — BCSI guidelines specify at least six nails per plate to achieve the required shear resistance
for the connection.
, Page 4 of 92
5. What is the standard spacing for wall studs in most residential construction?
A) 12 inches on center
B) 16 inches on center
C) 19.2 inches on center
D) 24 inches on center
Answer: B — Sixteen inches on center is the most common stud spacing to provide adequate structural
support.
6. For a stairway, what is the maximum allowable riser height under most residential building codes?
A) 7 inches
B) 7.75 inches (approx 7 3/4 inches)
C) 8 inches
D) 8.25 inches
*Answer: B — The IRC/IBC typically limit risers to a maximum of 7 3/4 inches for residential stairs.*
7. A floor plan shows a wall that will be framed with 2x4s at 16 inches o.c. The wall is 24 feet long. How
many studs are required (excluding corners)?
A) 16
