PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free NV C-15 Roofing and Siding Practice Questions

Prepare for the Nevada C-15 Roofing and Siding Contractor Examination exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Nevada NSCB Contractor Examinations

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Nevada A General Engineering Contractor Examination

Practice Questions

Nevada A-10 Commercial and Residential Pools Contractor Examination

Practice Questions

Nevada A-10A Residential Pools Contractor Examination

Practice Questions

Nevada A-10B Residential Spas Contractor Examination

Practice Questions

Nevada A-10C Repair of Pools and Spas Contractor Examination

Practice Questions

Nevada A-10E Pool Alteration and Repair Contractor Examination

Practice Questions
2026 Statistics

Key Facts: NV C-15 Roofing and Siding Exam

60 Q

Official Exam Questions

PSI Nevada Contractor CIB updated 3/25/2026

75%

Passing Score

PSI Nevada Contractor CIB updated 3/25/2026

2 hours

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-15 Roofing and Siding Contractor Examination is the official NSCB/PSI open book exam: 60 questions, 75% (45 of 60 points), 2 hours, USD 95 (bulletin 270, updated 3/25/2026). Official delivery: English.

Sample NV C-15 Roofing and Siding Practice Questions

Try these sample questions to test your NV C-15 Roofing and Siding exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under OSHA 1926.501, at what height above a lower level must roofing employees on unprotected sides and edges be protected from falling?
A.6 feet
B.4 feet
C.10 feet
D.15 feet
Explanation: OSHA 1926.501(b)(10) and (b)(11) require fall protection for roofing work when unprotected sides and edges are 6 feet (1.8 m) or more above lower levels. That 6-foot trigger applies on both low-slope and steep roofs. General-industry 4-foot rules do not apply to construction roofing.
2How does OSHA 1926.500 define a low-slope roof for fall-protection purposes?
A.A slope less than or equal to 2 in 12
B.A slope less than or equal to 3 in 12
C.A slope less than or equal to 4 in 12
D.A slope less than or equal to 6 in 12
Explanation: OSHA 1926.500(b) defines a low-slope roof as a slope less than or equal to 4 in 12 (vertical to horizontal). A steep roof is any slope greater than 4 in 12. That split controls whether a warning-line system is allowed. IBC Chapter 15 uses different slope cutoffs for materials and is not the OSHA definition.
3On a low-slope roofing job with no mechanical equipment, how far from the roof edge must an OSHA warning line be erected?
A.Not less than 6 feet
B.Not less than 4 feet
C.Not less than 10 feet
D.Not less than 15 feet
Explanation: OSHA 1926.502(f)(1)(i) requires the warning line to be at least 6 feet from the roof edge when mechanical equipment is not being used. If mechanical equipment is used, 1926.502(f)(1)(ii) keeps the 6-foot setback on edges parallel to travel and requires 10 feet on edges perpendicular to travel. Warning lines are only an option on low-slope roofing work.
4After it is erected, an OSHA warning-line rope, wire, or chain must stay between what heights above the walking/working surface, including sag?
A.21 to 28 inches
B.30 to 34 inches
C.34 to 39 inches
D.39 to 45 inches
Explanation: OSHA 1926.502(f)(2)(ii) requires the line's lowest point, including sag, to be at least 34 inches and its highest point no more than 39 inches above the walking/working surface. The line must also be flagged at not more than 6-foot intervals and have a tensile strength of at least 500 pounds.
5A crew is installing asphalt shingles on a 6:12 roof 18 feet above grade. Which fall-protection option is permitted by OSHA 1926.501(b)(11)?
A.A warning-line system and a safety monitor
B.A safety-monitoring system used alone
C.A guardrail system with toeboards, a safety-net system, or a personal fall-arrest system
D.A controlled-access zone without conventional fall protection
Explanation: A 6:12 roof is a steep roof under OSHA (greater than 4:12). Section 1926.501(b)(11) allows only guardrail systems with toeboards, safety-net systems, or personal fall-arrest systems. Warning lines and safety monitors are low-slope roofing options under 1926.501(b)(10) and are not allowed on steep roofs.
6A 2-foot by 2-foot skylight opening is a hole under OSHA 1926.500. What load must a cover over that hole support?
A.At least twice the weight of employees, equipment, and materials that may be imposed on it
B.The weight of one employee only
C.500 pounds regardless of the work
D.5,000 pounds, the same as a fall-arrest anchorage
Explanation: OSHA 1926.500 defines a hole as a gap or void 2 inches or more in its least dimension. Covers, including skylight covers, must support at least twice the weight of employees, equipment, and materials that may be imposed (1926.502(i)(2)), be secured, and be color-coded or marked HOLE or COVER. A 5,000-pound rating is an anchorage criterion, not a cover criterion.
7Unless a qualified person designs the complete system with a safety factor of at least two, a personal fall-arrest anchorage must be capable of supporting how much per employee attached?
A.1,800 pounds
B.3,000 pounds
C.5,000 pounds
D.10,000 pounds
Explanation: OSHA 1926.502(d)(15) requires each PFAS anchorage to support at least 5,000 pounds (22.2 kN) per employee attached, or to be designed, installed, and used under a qualified person as part of a complete system with a safety factor of at least two. The 1,800-pound figure is the maximum arresting force on an employee using a body harness, not the anchorage strength.
8When may a safety-monitoring system be used by itself, without a warning line, on a low-slope roofing job?
A.Only on roofs 50 feet or less in width
B.On any low-slope roof if the monitor is a competent person
C.Only on roofs steeper than 4:12
D.Whenever mechanical equipment is operating on the roof
Explanation: OSHA 1926.501(b)(10) allows a safety-monitoring system alone only on low-slope roofs 50 feet or less in width (see Appendix A to Subpart M). On wider roofs the monitor must be paired with a warning line or conventional fall protection. The monitor must be a competent person with no other duties that take attention away, and mechanical equipment must not be used or stored in a monitor-only area (1926.502(h)).
9Per IBC 2018 §1507.2.1, to what kind of deck must asphalt shingles be fastened?
A.Solidly sheathed decks
B.Spaced 1x4 sheathing only
C.Open steel purlins without a deck
D.Gypsum formboard without nailable sheathing
Explanation: IBC 2018 §1507.2.1 requires asphalt shingles to be fastened to solidly sheathed decks. Spaced sheathing is a wood-shake and wood-shingle option, not an asphalt-shingle substrate. The nails must penetrate the sheathing or at least 3/4 inch into it.
10In roofing estimating, what roof area does one square represent?
A.10 square feet
B.50 square feet
C.100 square feet
D.144 square feet
Explanation: A roofing square is 100 square feet of roof surface. Shingles, felts, membranes, and gravel are bought and estimated by the square. Plan area must still be multiplied by the slope factor before it is converted to squares.

About the NV C-15 Roofing and Siding Exam

The Nevada C-15 Roofing and Siding Contractor Examination is the official Nevada State Contractors Board trade examination administered by PSI Services LLC. The official exam has 60 scored questions. Passing is 75% (45 of 60 points) in 2 hours. 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

2 hours

Passing Score

75% (45 of 60 points)

Exam Fee

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

NV C-15 Roofing and Siding Exam Content Outline

8%

Safety

Safety (5 items)

13%

Roofing Substrates

Roofing Substrates (8 items)

27%

Steep Roofing

Steep Roofing (16 items)

7%

Roofing Repairs

Roofing Repairs (4 items)

12%

Elastomeric Roofing

Elastomeric Roofing (7 items)

12%

Built-up Bituminous Roofing

Built-up Bituminous Roofing (7 items)

5%

Sheet Metal and Flashing

Sheet Metal and Flashing (3 items)

13%

Siding

Siding (8 items)

3%

Photovoltaic Systems

Photovoltaic Systems (2 items)

How to Pass the NV C-15 Roofing and Siding Exam

What You Need to Know

  • Passing score: 75% (45 of 60 points)
  • Assessment: Open Book computer-based multiple-choice. International Building Code, 2018 (allowed in center)
  • Time limit: 2 hours
  • 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-15 Roofing and Siding 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-15 Roofing and Siding Contractor Examination?

The official PSI examination has 60 scored questions. Passing is 75% (45 of 60 points) within 2 hours (Candidate Information Bulletin 270, updated 3/25/2026).

How much does the NV C-15 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-15 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.