Denver Class B Building Contractor
Examination (F12) Practice Exam 2026 |
100 Questions & Answers with Detailed
Rationales | Complete Exam Prep Study
Guide | Denver Contractor License Test
Prep
1. What is the primary responsibility of a Class B Building Contractor?
A. Performing only electrical work
B. Designing buildings
C. Constructing and managing commercial and residential buildings within the
license scope
D. Selling construction materials
Answer: Constructing and managing commercial and residential buildings within
the license scope
Rationale: A Class B Building Contractor oversees building construction projects
permitted under the Class B license, coordinating trades, schedules, quality, and
code compliance.
, 2. Before construction begins, the contractor should first:
A. Install windows
B. Order interior finishes
C. Obtain required permits
D. Schedule final inspection
Answer: Obtain required permits
Rationale: Permits verify that proposed work complies with applicable building
codes before construction starts.
3. The International Building Code (IBC) primarily establishes:
A. Tax regulations
B. Employment policies
C. Minimum construction safety requirements
D. Real estate values
Answer: Minimum construction safety requirements
Rationale: The IBC provides minimum standards for structural integrity, fire
safety, accessibility, and occupant protection.
4. Which document specifies materials, workmanship, and construction
requirements?
A. Warranty
B. Payroll record
C. Project specifications
,D. Invoice
Answer: Project specifications
Rationale: Specifications define products, installation methods, and quality
expectations beyond the drawings.
5. The purpose of construction drawings is to:
A. Advertise the project
B. Record payroll
C. Communicate design and construction information
D. Schedule inspections
Answer: Communicate design and construction information
Rationale: Plans provide dimensions, layouts, structural details, and installation
requirements for construction.
6. A footing primarily transfers building loads to:
A. Roof framing
B. Windows
C. The supporting soil
D. Interior finishes
Answer: The supporting soil
Rationale: Footings distribute structural loads safely into the ground.
, 7. Concrete gains most of its strength through:
A. Drying
B. Painting
C. Hydration of cement
D. Exposure to sunlight
Answer: Hydration of cement
Rationale: Hydration is the chemical reaction between cement and water that
produces strength.
8. Rebar in concrete primarily improves:
A. Color
B. Weight reduction
C. Tensile strength
D. Waterproofing
Answer: Tensile strength
Rationale: Steel reinforcement resists tensile forces that concrete alone cannot
withstand.
9. Which framing member supports roof loads?
A. Baseboard
B. Sill plate
C. Rafter
Examination (F12) Practice Exam 2026 |
100 Questions & Answers with Detailed
Rationales | Complete Exam Prep Study
Guide | Denver Contractor License Test
Prep
1. What is the primary responsibility of a Class B Building Contractor?
A. Performing only electrical work
B. Designing buildings
C. Constructing and managing commercial and residential buildings within the
license scope
D. Selling construction materials
Answer: Constructing and managing commercial and residential buildings within
the license scope
Rationale: A Class B Building Contractor oversees building construction projects
permitted under the Class B license, coordinating trades, schedules, quality, and
code compliance.
, 2. Before construction begins, the contractor should first:
A. Install windows
B. Order interior finishes
C. Obtain required permits
D. Schedule final inspection
Answer: Obtain required permits
Rationale: Permits verify that proposed work complies with applicable building
codes before construction starts.
3. The International Building Code (IBC) primarily establishes:
A. Tax regulations
B. Employment policies
C. Minimum construction safety requirements
D. Real estate values
Answer: Minimum construction safety requirements
Rationale: The IBC provides minimum standards for structural integrity, fire
safety, accessibility, and occupant protection.
4. Which document specifies materials, workmanship, and construction
requirements?
A. Warranty
B. Payroll record
C. Project specifications
,D. Invoice
Answer: Project specifications
Rationale: Specifications define products, installation methods, and quality
expectations beyond the drawings.
5. The purpose of construction drawings is to:
A. Advertise the project
B. Record payroll
C. Communicate design and construction information
D. Schedule inspections
Answer: Communicate design and construction information
Rationale: Plans provide dimensions, layouts, structural details, and installation
requirements for construction.
6. A footing primarily transfers building loads to:
A. Roof framing
B. Windows
C. The supporting soil
D. Interior finishes
Answer: The supporting soil
Rationale: Footings distribute structural loads safely into the ground.
, 7. Concrete gains most of its strength through:
A. Drying
B. Painting
C. Hydration of cement
D. Exposure to sunlight
Answer: Hydration of cement
Rationale: Hydration is the chemical reaction between cement and water that
produces strength.
8. Rebar in concrete primarily improves:
A. Color
B. Weight reduction
C. Tensile strength
D. Waterproofing
Answer: Tensile strength
Rationale: Steel reinforcement resists tensile forces that concrete alone cannot
withstand.
9. Which framing member supports roof loads?
A. Baseboard
B. Sill plate
C. Rafter
