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Key Facts: NV A-23 Asbestos Exam

60 Q

Official Exam Questions

PSI Nevada Contractor CIB updated 3/25/2026

70%

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

Closed Book

Book Policy

PSI Nevada Contractor CIB updated 3/25/2026

Nevada A-23 Asbestos Contractor Examination is the official NSCB/PSI closed book exam: 60 questions, 70% (42 of 60 points), 2 hours, USD 95 (bulletin 291, updated 3/25/2026). Official delivery: English.

Sample NV A-23 Asbestos Practice Questions

Try these sample questions to review concepts for the NV A-23 Asbestos exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under the Nevada State Contractors Board A-23 classification, which work is within the asbestos contractor's licensed scope?
A.Cleaning, handling, repair, removal, encapsulation, enclosure, hauling, and disposal of asbestos-containing materials
B.Inspecting schools and writing AHERA management plans only
C.Issuing the Nevada Division of Environmental Protection asbestos worker card
D.Designing new fireproofing that contains chrysotile
Explanation: The NSCB A-23 scope, as published in the PSI Nevada contractor bulletin, is the cleaning, handling, repair, removal, encapsulation, enclosure, hauling, and disposal of materials containing asbestos. That trade license is separate from NDEP/EPA AHERA occupation cards and from inspector or management-planner accreditation.
2Under OSHA 29 CFR 1926.1101, asbestos-containing material (ACM) is any material that contains more than what percentage of asbestos?
A.0.1 percent
B.0.5 percent
C.1 percent
D.5 percent
Explanation: OSHA 1926.1101 defines ACM as any material containing more than 1 percent asbestos. EPA NESHAP uses the same more-than-1-percent threshold. Materials at or below 1 percent are not ACM, but PELs and a few work-practice rules can still apply if any asbestos is present.
3Presumed asbestos-containing material (PACM) under 29 CFR 1926.1101 is which of the following in buildings constructed no later than 1980?
A.Thermal system insulation and surfacing material
B.Only vinyl floor tile and asphalt roofing
C.Any painted surface installed before 1978
D.Only sprayed fireproofing that has already been sampled
Explanation: OSHA defines PACM as thermal system insulation and surfacing material found in buildings constructed no later than 1980. The designation may be rebutted only by the methods in 1926.1101(k)(5), such as bulk sampling. Flooring and roofing are not automatically PACM under that definition.
4Class I asbestos work under OSHA 1926.1101 is activities involving which of the following?
A.Removal of thermal system insulation and surfacing ACM and PACM
B.Removal of floor tile, roofing, and siding that are not TSI or surfacing
C.Repair that may disturb a small amount of ACM
D.Custodial contact with ACM that is not disturbed
Explanation: Class I is removal of TSI and surfacing ACM and PACM—the highest-risk construction class. Class II is removal of other ACM, Class III is repair and maintenance that is likely to disturb ACM, and Class IV is custodial contact or cleanup of debris from Class I–III work.
5Removing asbestos-containing floor tile, roofing shingles, or construction mastic is classified as which OSHA work class?
A.Class II
B.Class I
C.Class III
D.Class IV
Explanation: Class II is removal of ACM that is not TSI or surfacing material. OSHA lists wallboard, floor tile and sheeting, roofing and siding shingles, and construction mastics as typical Class II materials. Large-scale removal of those products is still Class II, not Class I.
6A plumber cuts a small damaged section of pipe insulation that fits in one 60-by-60-inch waste bag. OSHA classifies this as which work?
A.Class I removal because the material is TSI
B.Class II removal because the quantity is small
C.Class III repair and maintenance because ACM, including TSI, is likely to be disturbed in a quantity that fits one glove bag or waste bag
D.Class IV because the worker is not an abatement contractor
Explanation: Class III is repair and maintenance where ACM, including TSI and surfacing ACM/PACM, is likely to be disturbed. OSHA's disturbance definition caps the amount at what one glove bag or waste bag not exceeding 60 inches in length and width can contain. Larger TSI stripping is Class I removal.
7After Class I removal, janitorial staff wipe residual dust and bag debris without disturbing remaining ACM. That activity is:
A.Class I because it follows Class I work
B.Class II because dust is being removed
C.Class III because waste is being handled
D.Class IV maintenance and custodial work, including cleanup of dust, waste, and debris from Class I, II, or III activities
Explanation: Class IV covers maintenance and custodial activities in which employees contact but do not disturb ACM or PACM, and cleanup of dust, waste, and debris from Class I, II, and III work. Cleanup crews still need Class IV training, wet methods or HEPA cleanup, and regulated-area rules when they enter those areas.
8What is the OSHA permissible exposure limit (PEL) for asbestos as an 8-hour time-weighted average under 29 CFR 1926.1101?
A.0.1 fiber per cubic centimeter
B.0.01 fiber per cubic centimeter
C.1.0 fiber per cubic centimeter
D.2.0 fibers per cubic centimeter
Explanation: OSHA 1926.1101(c) sets the 8-hour TWA PEL at 0.1 fiber per cubic centimeter of air. The same numeric limit appears in 1910.1001 for general industry. 0.01 f/cc is an AHERA school clearance value, not the occupational PEL.
9What is the OSHA excursion limit for asbestos?
A.0.1 f/cc as an 8-hour TWA
B.0.1 f/cc averaged over 30 minutes
C.1.0 f/cc averaged over a 30-minute sampling period
D.1.0 f/cc as an 8-hour TWA
Explanation: 1926.1101(c)(2) sets the excursion limit at 1.0 fiber per cubic centimeter averaged over 30 minutes. Both the TWA PEL and the excursion limit must be met. Short-term peaks during bag-out or TSI strip-down are why excursion sampling matters.
10Which minerals does OSHA 1926.1101 include in the definition of asbestos?
A.Chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, and actinolite asbestos, including chemically treated or altered forms
B.Only chrysotile
C.Only amphibole asbestos used in shipyards
D.Any naturally occurring fiber longer than 5 micrometers
Explanation: OSHA lists chrysotile plus the amphiboles amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, and actinolite asbestos, including chemically treated or altered forms. For the standard, asbestos also includes PACM. Not every elongated mineral particle is regulated asbestos.

About the NV A-23 Asbestos Exam

The Nevada A-23 Asbestos Contractor Examination is the official Nevada State Contractors Board trade or management examination administered by PSI Services LLC. The official exam has 60 scored questions. Passing is 70% (42 of 60 points) in 2 hours. The examination is closed book. PSI lists USD 95 for one examination portion and USD 140 if taken with CMS; otherwise USD 95 per trade exam (Candidate Information Bulletin 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.

Exam sponsor: PSI Services LLC (for the Nevada State Contractors Board). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Closed Book computer-based multiple-choice. See the current PSI Nevada contractor bulletin for allowed and closed-book references.

Time Limit

2 hours

Passing Score

70% (42 of 60 points)

Exam / Certification Fees

USD 95

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

33%

General

Asbestos regulations and project setup (20 items)

17%

Respirators

Respiratory protection (10 items)

8%

Mini Enclosures/Glove Bag

Mini-enclosures and glove bags (5 items)

42%

Methods and Means

Abatement methods and means (25 items)

Preparing for the NV A-23 Asbestos Exam

What You Need to Know

  • Passing score: 70% (42 of 60 points)
  • Assessment: Closed Book computer-based multiple-choice. See the current PSI Nevada contractor bulletin for allowed and closed-book references.
  • Time limit: 2 hours
  • Exam / certification fees: USD 95 Official sources

Using Our Practice Resources

  • 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 A-23 Asbestos: Suggested Study Strategy

1Distribute study time to the official bulletin 291 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 A-23 Asbestos Contractor Examination?

The official PSI examination has 60 scored questions. Passing is 70% (42 of 60 points) within 2 hours (Candidate Information Bulletin 291, updated 3/25/2026).

How much does the NV A-23 Asbestos 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 A-23 Asbestos exam open book?

No. PSI lists this examination as closed book. Study the bulletin reference list before the appointment; those books are not allowed in the 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.