CSLB General Contractor B License
Exam Actual Exam 2026/2027 – Complete
Exam-Style Questions | 100% Verified –
Pass Guaranteed – A+ Graded
Building Codes, Safety, & OSHA Regulations
(Title 24, CBC, Accessibility, Structural Design, Energy Efficiency, OSHA Standards)
Q1: A contractor is building a new single-family residence in California. Which code establishes the
minimum requirements for structural design, fire safety, and energy efficiency?
A. The International Plumbing Code (IPC)
B. The California Building Code (CBC), Part 2 of Title 24 [CORRECT]
C. The National Electrical Code (NEC)
D. The Uniform Mechanical Code (UMC)
Correct Answer: B
Rationale: The best answer is B. The California Building Code (CBC), which is Part 2 of the California
Code of Regulations Title 24, establishes the baseline requirements for structural design, fire and life
safety, and energy efficiency for buildings in California. This choice is correct because the CBC is the
primary building code adopted and amended for California. This aligns with the CSLB exam blueprint
which tests knowledge of Title 24 and its various parts.
Q2: Under OSHA construction standards, at what height is fall protection required when working on
scaffolding?
A. 4 feet
B. 6 feet
,C. 10 feet [CORRECT]
D. 15 feet
Correct Answer: C
Rationale: The best answer is C. OSHA 1926.451(g) requires that each employee on a scaffold more than
10 feet above a lower level be protected from falling. This choice is correct because the 10-foot
threshold is specific to scaffolding. This reflects standard construction safety practice where different
activities have different fall protection triggers—10 feet for scaffolding, 6 feet for general construction,
and 4 feet in some specific situations.
Q3: A contractor is excavating a trench that is 6 feet deep and 3 feet wide. According to OSHA, which
protective system is required?
A. No protective system is needed for trenches less than 10 feet deep
B. A protective system such as sloping, benching, shoring, or shielding is required for trenches 5 feet or
deeper [CORRECT]
C. Only hard hats are required
D. Protective systems are only required for trenches wider than 5 feet
Correct Answer: B
Rationale: The best answer is B. OSHA 1926.652 requires protective systems for all trenches 5 feet deep
or greater, unless the excavation is made entirely in stable rock. This choice is correct because the 5-foot
threshold triggers the protective system requirement regardless of width. This reflects standard jobsite
safety practice where trench collapses are a leading cause of construction fatalities, making proper
protective systems non-negotiable.
Q4: Which California Building Code requirement applies to the installation of smoke alarms in new
residential construction?
A. Smoke alarms are only required in the kitchen
B. Smoke alarms must be installed in each sleeping room, outside each sleeping area, and on every level
of the dwelling [CORRECT]
C. One smoke alarm per floor is sufficient
D. Smoke alarms are only required in homes with gas appliances
,Correct Answer: B
Rationale: The best answer is B. The CBC and IRC require smoke alarms in each sleeping room, outside
each separate sleeping area, and on every level including basements, with interconnected alarms in new
construction. This choice is correct because it reflects current residential fire safety standards. This
aligns with CBC Section R314 which specifies these locations to ensure early warning regardless of
where a fire starts.
Q5: Under OSHA's Hazard Communication Standard, what must employers provide to workers regarding
hazardous chemicals on the job site?
A. Only verbal warnings when chemicals are present
B. Safety Data Sheets (SDS), proper labeling, and employee training [CORRECT]
C. A list of chemical names posted in the break room only
D. No information is required if the chemicals are common household products
Correct Answer: B
Rationale: The best answer is B. OSHA's Hazard Communication Standard (HCS) requires employers to
provide Safety Data Sheets, ensure proper container labeling, and train employees on chemical hazards
and protective measures. This choice is correct because it captures all three pillars of the standard. This
reflects standard jobsite practice where the right-to-know principle ensures workers understand the
chemicals they handle and how to protect themselves.
Q6: A contractor is building a commercial office building in California. What is the minimum ceiling
height required by the CBC for occupiable spaces?
A. 7 feet 0 inches
B. 7 feet 6 inches [CORRECT]
C. 8 feet 0 inches
D. 8 feet 6 inches
Correct Answer: B
Rationale: The best answer is B. The California Building Code requires a minimum ceiling height of 7 feet
6 inches for occupiable spaces in commercial buildings, with some exceptions for specific areas like
corridors and bathrooms. This choice is correct because it reflects the CBC minimum for general
occupiable spaces. This aligns with CBC Section 1208 which specifies these dimensional requirements.
, Q7: Under OSHA construction standards, which of the following is required for all employees exposed to
fall hazards of 6 feet or more in general construction work?
A. Only warning lines
B. Guardrail systems, safety net systems, or personal fall arrest systems [CORRECT]
C. Hard hats only
D. High-visibility vests
Correct Answer: B
Rationale: The best answer is B. OSHA 1926.501(b) requires that employees working at heights of 6 feet
or more in construction be protected by guardrails, safety nets, or personal fall arrest systems. This
choice is correct because these are the three primary fall protection methods recognized by OSHA. This
reflects standard construction safety practice where fall protection is mandatory and one of these
systems must be in place before work begins at height.
Q8: Which of the following is a requirement of the CBC for accessibility in commercial restrooms?
A. All restrooms must be accessible regardless of building size
B. At least one accessible restroom is required per floor when restrooms are provided, with specific grab
bar, clearance, and fixture height requirements [CORRECT]
C. Accessibility is only required in buildings over 10,000 square feet
D. Restrooms in existing buildings are exempt from all accessibility requirements
Correct Answer: B
Rationale: The best answer is B. The CBC incorporates ADA and California accessibility requirements
mandating that when restrooms are provided, at least one per floor must be accessible with specific
dimensional and fixture requirements. This choice is correct because it reflects the proportional
accessibility approach of the code. This aligns with CBC Chapter 11B which details accessibility
requirements for plumbing fixtures.
Q9: A contractor is working on a renovation project that involves disturbing painted surfaces in a
building constructed in 1975. Which OSHA regulation applies?
A. No special requirements apply to renovation work
Exam Actual Exam 2026/2027 – Complete
Exam-Style Questions | 100% Verified –
Pass Guaranteed – A+ Graded
Building Codes, Safety, & OSHA Regulations
(Title 24, CBC, Accessibility, Structural Design, Energy Efficiency, OSHA Standards)
Q1: A contractor is building a new single-family residence in California. Which code establishes the
minimum requirements for structural design, fire safety, and energy efficiency?
A. The International Plumbing Code (IPC)
B. The California Building Code (CBC), Part 2 of Title 24 [CORRECT]
C. The National Electrical Code (NEC)
D. The Uniform Mechanical Code (UMC)
Correct Answer: B
Rationale: The best answer is B. The California Building Code (CBC), which is Part 2 of the California
Code of Regulations Title 24, establishes the baseline requirements for structural design, fire and life
safety, and energy efficiency for buildings in California. This choice is correct because the CBC is the
primary building code adopted and amended for California. This aligns with the CSLB exam blueprint
which tests knowledge of Title 24 and its various parts.
Q2: Under OSHA construction standards, at what height is fall protection required when working on
scaffolding?
A. 4 feet
B. 6 feet
,C. 10 feet [CORRECT]
D. 15 feet
Correct Answer: C
Rationale: The best answer is C. OSHA 1926.451(g) requires that each employee on a scaffold more than
10 feet above a lower level be protected from falling. This choice is correct because the 10-foot
threshold is specific to scaffolding. This reflects standard construction safety practice where different
activities have different fall protection triggers—10 feet for scaffolding, 6 feet for general construction,
and 4 feet in some specific situations.
Q3: A contractor is excavating a trench that is 6 feet deep and 3 feet wide. According to OSHA, which
protective system is required?
A. No protective system is needed for trenches less than 10 feet deep
B. A protective system such as sloping, benching, shoring, or shielding is required for trenches 5 feet or
deeper [CORRECT]
C. Only hard hats are required
D. Protective systems are only required for trenches wider than 5 feet
Correct Answer: B
Rationale: The best answer is B. OSHA 1926.652 requires protective systems for all trenches 5 feet deep
or greater, unless the excavation is made entirely in stable rock. This choice is correct because the 5-foot
threshold triggers the protective system requirement regardless of width. This reflects standard jobsite
safety practice where trench collapses are a leading cause of construction fatalities, making proper
protective systems non-negotiable.
Q4: Which California Building Code requirement applies to the installation of smoke alarms in new
residential construction?
A. Smoke alarms are only required in the kitchen
B. Smoke alarms must be installed in each sleeping room, outside each sleeping area, and on every level
of the dwelling [CORRECT]
C. One smoke alarm per floor is sufficient
D. Smoke alarms are only required in homes with gas appliances
,Correct Answer: B
Rationale: The best answer is B. The CBC and IRC require smoke alarms in each sleeping room, outside
each separate sleeping area, and on every level including basements, with interconnected alarms in new
construction. This choice is correct because it reflects current residential fire safety standards. This
aligns with CBC Section R314 which specifies these locations to ensure early warning regardless of
where a fire starts.
Q5: Under OSHA's Hazard Communication Standard, what must employers provide to workers regarding
hazardous chemicals on the job site?
A. Only verbal warnings when chemicals are present
B. Safety Data Sheets (SDS), proper labeling, and employee training [CORRECT]
C. A list of chemical names posted in the break room only
D. No information is required if the chemicals are common household products
Correct Answer: B
Rationale: The best answer is B. OSHA's Hazard Communication Standard (HCS) requires employers to
provide Safety Data Sheets, ensure proper container labeling, and train employees on chemical hazards
and protective measures. This choice is correct because it captures all three pillars of the standard. This
reflects standard jobsite practice where the right-to-know principle ensures workers understand the
chemicals they handle and how to protect themselves.
Q6: A contractor is building a commercial office building in California. What is the minimum ceiling
height required by the CBC for occupiable spaces?
A. 7 feet 0 inches
B. 7 feet 6 inches [CORRECT]
C. 8 feet 0 inches
D. 8 feet 6 inches
Correct Answer: B
Rationale: The best answer is B. The California Building Code requires a minimum ceiling height of 7 feet
6 inches for occupiable spaces in commercial buildings, with some exceptions for specific areas like
corridors and bathrooms. This choice is correct because it reflects the CBC minimum for general
occupiable spaces. This aligns with CBC Section 1208 which specifies these dimensional requirements.
, Q7: Under OSHA construction standards, which of the following is required for all employees exposed to
fall hazards of 6 feet or more in general construction work?
A. Only warning lines
B. Guardrail systems, safety net systems, or personal fall arrest systems [CORRECT]
C. Hard hats only
D. High-visibility vests
Correct Answer: B
Rationale: The best answer is B. OSHA 1926.501(b) requires that employees working at heights of 6 feet
or more in construction be protected by guardrails, safety nets, or personal fall arrest systems. This
choice is correct because these are the three primary fall protection methods recognized by OSHA. This
reflects standard construction safety practice where fall protection is mandatory and one of these
systems must be in place before work begins at height.
Q8: Which of the following is a requirement of the CBC for accessibility in commercial restrooms?
A. All restrooms must be accessible regardless of building size
B. At least one accessible restroom is required per floor when restrooms are provided, with specific grab
bar, clearance, and fixture height requirements [CORRECT]
C. Accessibility is only required in buildings over 10,000 square feet
D. Restrooms in existing buildings are exempt from all accessibility requirements
Correct Answer: B
Rationale: The best answer is B. The CBC incorporates ADA and California accessibility requirements
mandating that when restrooms are provided, at least one per floor must be accessible with specific
dimensional and fixture requirements. This choice is correct because it reflects the proportional
accessibility approach of the code. This aligns with CBC Chapter 11B which details accessibility
requirements for plumbing fixtures.
Q9: A contractor is working on a renovation project that involves disturbing painted surfaces in a
building constructed in 1975. Which OSHA regulation applies?
A. No special requirements apply to renovation work
