QUESTIONS AND ANSWERS | EXPERT VERIFIED RATIONALES
Q1. What is the total number of scored questions on the Nevada C-5
Concrete Contractor exam administered by PSI?
A. 80
B. 50
C. 60
D. 100
Correct: C
Rationale: The PSI-administered exam consists of 60 scored multiple-
choice questions. An additional 5–10 unscored pretest items may also
be included but do not affect the candidate's score.
Q2. What is the time limit to complete the Nevada C-5 Concrete
Contractor exam?
A. 3 hours
B. 1.5 hours
C. 2 hours
D. 4 hours
Correct: C
Rationale: Candidates have 2 hours (120 minutes) to complete the 60
scored questions.
,Q3. What is the minimum passing score required for the Nevada C-5
Concrete Contractor exam?
A. 60%
B. 75%
C. 80%
D. 70%
Correct: D
Rationale: A minimum of 42 correct answers out of 60 scored questions
(70%) is required to pass the exam.
Q4. Is the Nevada C-5 Concrete Contractor exam open-book or closed-
book?
A. Closed-book
B. Open-book
C. Combination of both
D. Depends on the testing location
Correct: B
Rationale: The exam is open-book. Candidates may use approved
reference materials during the test.
Q5. Which agency administers the Nevada C-5 Concrete Contractor
license exam?
,A. Nevada State Contractors Board (NSCB)
B. Occupational Safety and Health Administration (OSHA)
C. American Concrete Institute (ACI)
D. International Code Council (ICC)
Correct: A
Rationale: The Nevada C-5 Concrete Contractor License Exam is
administered by PSI Services LLC on behalf of the Nevada State
Contractors Board (NSCB).
Q6. According to NAC 624.230, a person who holds a classification C-5
license may prepare the surface and place which of the following?
A. Asphalt paving
B. Concrete
C. Masonry units
D. Structural steel
Correct: B
Rationale: The C-5 Concrete Contracting license authorizes the
preparation of surfaces and placement of concrete within the scope
defined by Nevada regulations.
Q7. Which of the following is NOT within the scope of work for a C-5
Concrete Contractor in Nevada?
A. Placing concrete foundations
B. Installing reinforcing steel
, C. Constructing formwork
D. Installing electrical conduit in concrete
Correct: D
Rationale: While C-5 contractors place concrete and install
reinforcement and formwork, electrical work falls under separate trade
classifications and is not within the C-5 scope.
Q8. What is the minimum compressive strength (f'c) required for
standard residential concrete foundation walls according to the IBC?
A. 2,000 psi
B. 3,000 psi
C. 3,500 psi
D. 2,500 psi
Correct: D
Rationale: IBC Section 1905.1 requires a minimum compressive strength
of 2,500 psi for cast-in-place concrete foundation walls in residential
construction.
Q9. What is the maximum allowable water-cement ratio for concrete
exposed to freezing and thawing in a severe climate such as northern
Nevada?
A. 0.35
B. 0.50
C. 0.40
D. 0.45