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100+ Free NV C-18 Masonry Practice Questions

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2026 Statistics

Key Facts: NV C-18 Masonry Exam

50 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

Open Book

Book Policy

PSI Nevada Contractor CIB updated 3/25/2026

Nevada C-18 Masonry Contractor Examination is the official NSCB/PSI open book exam: 50 questions, 70% (35 of 50 points), 2 hours, USD 95 (bulletin 270, updated 3/25/2026). Official delivery: English.

Sample NV C-18 Masonry Practice Questions

Try these sample questions to test your NV C-18 Masonry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under OSHA 1926.706, how wide must the limited access zone be on a masonry wall under construction?
A.Equal to the finished wall height plus 4 feet, for the entire wall length
B.A fixed 6-foot strip measured from the scaffold only
C.Equal to half the wall height, on both sides
D.A 10-foot strip that may stop short of the wall ends
Explanation: OSHA 1926.706(a)(2) requires the limited access zone to equal the height of the wall to be constructed plus 4 feet, and to run the entire length of the wall. The zone is a collapse buffer, not a scaffold clearance strip.
2On which side of a masonry wall must the OSHA limited access zone be established?
A.Only after the wall exceeds 12 feet
B.On the side that will be unscaffolded
C.Only on the scaffold side
D.Only at the two wall ends
Explanation: OSHA 1926.706(a)(3) places the limited access zone on the unscaffolded side. That is the side where an overturning wall can fall onto unprotected workers. The zone must be set before construction starts.
3At what masonry wall height does OSHA 1926.706 require bracing unless the wall is otherwise adequately supported?
A.Over 6 feet
B.Over 12 feet
C.Over 8 feet
D.Over 4 feet
Explanation: OSHA 1926.706(b) requires all masonry walls over 8 feet in height to be adequately braced against overturning and collapse unless the wall is otherwise adequately supported. Bracing stays until permanent supporting elements are in place.
4How must a masonry saw blade be guarded under OSHA 1926 Subpart Q?
A.With a loose canvas drape only
B.Guarding is not required if wet cutting is used
C.With a full sealed box that hides the entire saw
D.With a semicircular enclosure over the blade
Explanation: OSHA 1926.702(i) requires masonry saws to be guarded with a semicircular enclosure over the blade. Wet cutting controls silica but does not replace the blade guard.
5Under OSHA 1926.250, what is the maximum height of a loose brick stack, and how must it be tapered above 4 feet?
A.7 feet maximum; taper back 2 inches in every foot of height above 4 feet
B.10 feet maximum; no taper required
C.6 feet maximum; taper one-half brick per course from the ground up
D.8 feet maximum; taper 1 inch per foot above 6 feet
Explanation: OSHA 1926.250(b)(6) limits brick stacks to 7 feet. When a loose brick stack reaches 4 feet, it must be tapered back 2 inches in every foot of height above that 4-foot level so the pile cannot kick out.
6How must masonry blocks stacked higher than 6 feet be tapered under OSHA 1926.250?
A.Taper only the top course
B.Taper back one-half block per tier above the 6-foot level
C.Taper back 2 inches per foot starting at 4 feet
D.No taper is required if the stack is banded
Explanation: OSHA 1926.250(b)(7) requires masonry-block stacks higher than 6 feet to be tapered back one-half block per tier above the 6-foot level. That is a different rule from the brick-stack taper.
7At what height above a lower level must a mason on a walking-working surface be protected from falling under OSHA construction fall-protection rules?
A.10 feet
B.15 feet
C.6 feet
D.4 feet
Explanation: OSHA 1926.501(b)(1) requires fall protection in construction when employees are on a walking-working surface 6 feet or more above a lower level. Scaffold, ladder, and wall-brace rules are additional, not substitutes for that trigger.
8What is the preferred OSHA Table 1 control when cutting CMU or brick with a stationary masonry saw?
A.Dry-cut outdoors without any control if the cut is under 1 minute
B.Rely on a paper dust mask only
C.Vacuum after the cut instead of controlling dust at the blade
D.Use a saw with an integrated water-delivery system that continuously wets the blade
Explanation: OSHA 1926.1153 Table 1 specifies an integrated water-delivery system that continuously feeds water to the blade for masonry saws. Wet cutting keeps respirable crystalline silica out of the air. A paper mask or cleanup after the fact is not the Table 1 method.
9A 10-foot-high CMU wall is being laid. When may the OSHA limited access zone be removed?
A.Only after the wall is braced or otherwise adequately supported under 1926.706(b), because the wall is over 8 feet
B.As soon as the last course is buttered
C.When the mortar in the first course has reached initial set
D.After any employee other than a mason leaves the area
Explanation: OSHA 1926.706(a)(5) lets the limited access zone come down when the wall is adequately supported — except that walls over 8 feet must also meet 1926.706(b). Paragraph (b) keeps bracing in place until permanent supports exist. A 10-foot wall is over 8 feet, so the zone stays until the wall is braced or equivalently supported.
10Who is permitted inside the OSHA limited access zone while a masonry wall is being built?
A.Anyone wearing a hard hat
B.Only employees actively engaged in constructing the wall
C.Any trade whose work is on the same floor
D.Inspectors and delivery drivers, but not laborers
Explanation: OSHA 1926.706(a)(4) restricts the limited access zone to employees actively engaged in constructing the wall. No other employees may enter. Hard hats and nearby trades do not create an exception.

About the NV C-18 Masonry Exam

The Nevada C-18 Masonry Contractor Examination is the official Nevada State Contractors Board trade examination administered by PSI Services LLC. The official exam has 50 scored questions. Passing is 70% (35 of 50 points) in 2 hours. The examination is open book. International Building Code, 2018 and ACI 530/530.1-11 or ACI 530/530.1-13 (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 and ACI 530/530.1-11 or ACI 530/530.1-13 (allowed in center)

Time Limit

2 hours

Passing Score

70% (35 of 50 points)

Exam Fee

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

NV C-18 Masonry Exam Content Outline

10%

Safety

Safety (5 items)

40%

Concrete Block

Concrete Block (20 items)

22%

Brick

Brick (11 items)

12%

Specialty Masonry

Specialty Masonry (6 items)

16%

Mortar and Grout

Mortar and Grout (8 items)

How to Pass the NV C-18 Masonry Exam

What You Need to Know

  • Passing score: 70% (35 of 50 points)
  • Assessment: Open Book computer-based multiple-choice. International Building Code, 2018 and ACI 530/530.1-11 or ACI 530/530.1-13 (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-18 Masonry 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-18 Masonry Contractor Examination?

The official PSI examination has 50 scored questions. Passing is 70% (35 of 50 points) within 2 hours (Candidate Information Bulletin 270, updated 3/25/2026).

How much does the NV C-18 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-18 exam open book?

Yes. PSI lists this examination as open book. International Building Code, 2018 and ACI 530/530.1-11 or ACI 530/530.1-13 (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.