Nevada C-5 Concrete Contractor Exam 2026/2027 |
Nevada State Contractors Board C-5 Concrete
Trade Exam Study Guide, PSI Practice Questions &
Answers, Nevada Concrete Contractor License
Exam Prep, Concrete Construction, Reinforcing
Steel, Forms, Placement, Finishing, Concrete Repair,
Safety & Detailed Rationales
Question 1: According to NAC § 624.230, which of the following
activities falls within the scope of work for a Nevada C-5 Concrete
Contractor classification?
A. Installation of electrical conduit within concrete structures
B. Pouring, placing, finishing, and installing concrete; constructing forms;
sawing, cutting, drilling, and coring concrete and asphaltic paving material
C. Structural steel erection and welding
D. Plumbing rough-in for concrete foundations
CORRECT ANSWER: B. Pouring, placing, finishing, and installing
concrete; constructing forms; sawing, cutting, drilling, and coring
concrete and asphaltic paving material
Rationale: The Nevada C-5 classification scope explicitly includes surface
preparation, reinforcement placement, pouring and finishing concrete,
form and slipform assembly, sealants and waterproofing, and
sawing/coring concrete and asphalt. Electrical, structural steel, and
plumbing work fall under separate contractor classifications.
Question 2: Which agency is the official licensing authority for the
Nevada C-5 Concrete Contractor classification?
A. PSI Services LLC
B. Nevada State Contractors Board (NSCB)
C. Nevada Division of Environmental Protection
D. Occupational Safety and Health Administration (OSHA)
CORRECT ANSWER: B. Nevada State Contractors Board (NSCB)
Rationale: The Nevada State Contractors Board is the official licensing
authority that issues the C-5 classification. PSI Services merely
administers the examination on behalf of the NSCB.
Question 3: What is the minimum passing score required for the
Nevada C-5 Concrete Contractor trade examination?
,A. 60% (36 out of 60 questions)
B. 65% (39 out of 60 questions)
C. 70% (42 out of 60 questions)
D. 75% (45 out of 60 questions)
CORRECT ANSWER: C. 70% (42 out of 60 questions)
Rationale: The C-5 trade exam consists of 60 scored questions, and
candidates must correctly answer at least 70%—which equals 42
questions—to pass.
Question 4: What is the time limit for completing the Nevada C-5
Concrete Contractor examination?
A. 1 hour
B. 1.5 hours
C. 2 hours
D. 3 hours
CORRECT ANSWER: C. 2 hours
Rationale: Candidates are allowed 2 hours (120 minutes) to complete the
60 scored questions on the C-5 Concrete Contractor examination.
Question 5: How many years of non-restricted experience are required
to qualify for a Nevada C-5 Concrete Contractor license?
A. 2 years
B. 3 years
C. 4 years
D. 5 years
CORRECT ANSWER: C. 4 years
Rationale: A candidate must document 4 years of experience within the
past 10 years for a non-restricted C-5 license. A restricted license may be
obtained with 2 years of experience.
Question 6: Per OSHA 1926.701(b), what must be done with protruding
reinforcing steel that employees could fall onto or into?
A. Paint the bar ends a bright color
B. Guard the steel to eliminate the impalement hazard
,C. Bend every bar to a 45-degree angle
D. Cover only bars taller than 6 feet
CORRECT ANSWER: B. Guard the steel to eliminate the impalement
hazard
Rationale: OSHA 1926.701(b) requires that all protruding reinforcing steel
onto or into which employees could fall must be guarded to eliminate the
impalement hazard. Approved methods include manufactured rebar caps
rated for impalement, wooden troughs, or bending bars out of the fall path.
Color painting alone does not provide adequate protection.
Question 7: Under OSHA 1926.701(d), who is permitted to ride a
concrete bucket?
A. The finish foreman only
B. No employee is permitted to ride a concrete bucket
C. Anyone wearing a full-body harness
D. The crane signal person
CORRECT ANSWER: B. No employee is permitted to ride a concrete
bucket
Rationale: OSHA 1926.701(d) explicitly states that no employee shall be
permitted to ride concrete buckets. Concrete buckets are material hoists
and not designed or approved for personnel transport.
Question 8: On a typical C-5 building project, OSHA 1926.501 requires
fall protection when an employee is exposed to a fall of how many feet
or more?
A. 4 feet
B. 6 feet
C. 10 feet
D. 15 feet
CORRECT ANSWER: B. 6 feet
Rationale: OSHA 1926.501(b)(1) establishes the general construction fall
protection trigger at 6 feet. This applies to wall-form work decks, elevated
slabs, and leading edges unless a more specific OSHA subpart imposes
stricter requirements.
, Question 9: When using a handheld power saw to cut concrete, what
does OSHA 1926.1153 Table 1 require as the first silica control?
A. A paper dust mask only
B. An integrated water feed that continuously wets the blade, or an
equivalent listed dust-collection method
C. Dry cutting with no controls if the cut is under 1 minute
D. A fan aimed at the operator
CORRECT ANSWER: B. An integrated water feed that continuously wets
the blade, or an equivalent listed dust-collection method
Rationale: OSHA 1926.1153 Table 1 lists handheld power saws and
requires a saw with an integrated water-delivery system that continuously
feeds water to the blade, or a listed dust-collection alternative operated
according to manufacturer instructions. A loose paper mask does not
satisfy Table 1 compliance.
Question 10: Per OSHA 1926.703(a)(2), what formwork documents must
be available at the jobsite?
A. Only the ready-mix delivery ticket
B. A verbal approval from the pump operator
C. Drawings or plans, including all revisions, for jack layout, formwork,
shoring, working decks, and scaffolds
D. The original bid estimate
CORRECT ANSWER: C. Drawings or plans, including all revisions, for
jack layout, formwork, shoring, working decks, and scaffolds
Rationale: OSHA 1926.703(a)(2) requires the current formwork drawings—
including jack layout, formwork, shoring equipment, working decks, and
scaffolds, along with all revisions—to be kept on site for inspection and
reference by the crew.
Question 11: Which ASTM standard covers deformed and plain carbon-
steel reinforcing bars used in concrete?
A. ASTM A36
B. ASTM C150
C. ASTM A615
D. ASTM A706
Nevada State Contractors Board C-5 Concrete
Trade Exam Study Guide, PSI Practice Questions &
Answers, Nevada Concrete Contractor License
Exam Prep, Concrete Construction, Reinforcing
Steel, Forms, Placement, Finishing, Concrete Repair,
Safety & Detailed Rationales
Question 1: According to NAC § 624.230, which of the following
activities falls within the scope of work for a Nevada C-5 Concrete
Contractor classification?
A. Installation of electrical conduit within concrete structures
B. Pouring, placing, finishing, and installing concrete; constructing forms;
sawing, cutting, drilling, and coring concrete and asphaltic paving material
C. Structural steel erection and welding
D. Plumbing rough-in for concrete foundations
CORRECT ANSWER: B. Pouring, placing, finishing, and installing
concrete; constructing forms; sawing, cutting, drilling, and coring
concrete and asphaltic paving material
Rationale: The Nevada C-5 classification scope explicitly includes surface
preparation, reinforcement placement, pouring and finishing concrete,
form and slipform assembly, sealants and waterproofing, and
sawing/coring concrete and asphalt. Electrical, structural steel, and
plumbing work fall under separate contractor classifications.
Question 2: Which agency is the official licensing authority for the
Nevada C-5 Concrete Contractor classification?
A. PSI Services LLC
B. Nevada State Contractors Board (NSCB)
C. Nevada Division of Environmental Protection
D. Occupational Safety and Health Administration (OSHA)
CORRECT ANSWER: B. Nevada State Contractors Board (NSCB)
Rationale: The Nevada State Contractors Board is the official licensing
authority that issues the C-5 classification. PSI Services merely
administers the examination on behalf of the NSCB.
Question 3: What is the minimum passing score required for the
Nevada C-5 Concrete Contractor trade examination?
,A. 60% (36 out of 60 questions)
B. 65% (39 out of 60 questions)
C. 70% (42 out of 60 questions)
D. 75% (45 out of 60 questions)
CORRECT ANSWER: C. 70% (42 out of 60 questions)
Rationale: The C-5 trade exam consists of 60 scored questions, and
candidates must correctly answer at least 70%—which equals 42
questions—to pass.
Question 4: What is the time limit for completing the Nevada C-5
Concrete Contractor examination?
A. 1 hour
B. 1.5 hours
C. 2 hours
D. 3 hours
CORRECT ANSWER: C. 2 hours
Rationale: Candidates are allowed 2 hours (120 minutes) to complete the
60 scored questions on the C-5 Concrete Contractor examination.
Question 5: How many years of non-restricted experience are required
to qualify for a Nevada C-5 Concrete Contractor license?
A. 2 years
B. 3 years
C. 4 years
D. 5 years
CORRECT ANSWER: C. 4 years
Rationale: A candidate must document 4 years of experience within the
past 10 years for a non-restricted C-5 license. A restricted license may be
obtained with 2 years of experience.
Question 6: Per OSHA 1926.701(b), what must be done with protruding
reinforcing steel that employees could fall onto or into?
A. Paint the bar ends a bright color
B. Guard the steel to eliminate the impalement hazard
,C. Bend every bar to a 45-degree angle
D. Cover only bars taller than 6 feet
CORRECT ANSWER: B. Guard the steel to eliminate the impalement
hazard
Rationale: OSHA 1926.701(b) requires that all protruding reinforcing steel
onto or into which employees could fall must be guarded to eliminate the
impalement hazard. Approved methods include manufactured rebar caps
rated for impalement, wooden troughs, or bending bars out of the fall path.
Color painting alone does not provide adequate protection.
Question 7: Under OSHA 1926.701(d), who is permitted to ride a
concrete bucket?
A. The finish foreman only
B. No employee is permitted to ride a concrete bucket
C. Anyone wearing a full-body harness
D. The crane signal person
CORRECT ANSWER: B. No employee is permitted to ride a concrete
bucket
Rationale: OSHA 1926.701(d) explicitly states that no employee shall be
permitted to ride concrete buckets. Concrete buckets are material hoists
and not designed or approved for personnel transport.
Question 8: On a typical C-5 building project, OSHA 1926.501 requires
fall protection when an employee is exposed to a fall of how many feet
or more?
A. 4 feet
B. 6 feet
C. 10 feet
D. 15 feet
CORRECT ANSWER: B. 6 feet
Rationale: OSHA 1926.501(b)(1) establishes the general construction fall
protection trigger at 6 feet. This applies to wall-form work decks, elevated
slabs, and leading edges unless a more specific OSHA subpart imposes
stricter requirements.
, Question 9: When using a handheld power saw to cut concrete, what
does OSHA 1926.1153 Table 1 require as the first silica control?
A. A paper dust mask only
B. An integrated water feed that continuously wets the blade, or an
equivalent listed dust-collection method
C. Dry cutting with no controls if the cut is under 1 minute
D. A fan aimed at the operator
CORRECT ANSWER: B. An integrated water feed that continuously wets
the blade, or an equivalent listed dust-collection method
Rationale: OSHA 1926.1153 Table 1 lists handheld power saws and
requires a saw with an integrated water-delivery system that continuously
feeds water to the blade, or a listed dust-collection alternative operated
according to manufacturer instructions. A loose paper mask does not
satisfy Table 1 compliance.
Question 10: Per OSHA 1926.703(a)(2), what formwork documents must
be available at the jobsite?
A. Only the ready-mix delivery ticket
B. A verbal approval from the pump operator
C. Drawings or plans, including all revisions, for jack layout, formwork,
shoring, working decks, and scaffolds
D. The original bid estimate
CORRECT ANSWER: C. Drawings or plans, including all revisions, for
jack layout, formwork, shoring, working decks, and scaffolds
Rationale: OSHA 1926.703(a)(2) requires the current formwork drawings—
including jack layout, formwork, shoring equipment, working decks, and
scaffolds, along with all revisions—to be kept on site for inspection and
reference by the crew.
Question 11: Which ASTM standard covers deformed and plain carbon-
steel reinforcing bars used in concrete?
A. ASTM A36
B. ASTM C150
C. ASTM A615
D. ASTM A706
