Denver Class C Residential Building
Contractor Examination (F13) Practice
Exam 2026 | 100 Questions & Answers
with Detailed Rationales | Complete
Exam Prep Study Guide | Denver
Residential Contractor License Test Prep
1. What is the primary responsibility of a Class C Residential Building
Contractor?
A. Construct commercial skyscrapers
B. Build industrial facilities
C. Construct, remodel, repair, or improve residential structures within the
license scope
D. Install municipal utilities
Answer: Construct, remodel, repair, or improve residential structures within the
license scope
Rationale: A Class C Residential Building Contractor focuses on residential
construction, remodeling, repairs, and improvements as permitted by local
licensing regulations.
, 2. Before beginning construction, the contractor should first:
A. Hire subcontractors
B. Purchase finish materials
C. Obtain required permits
D. Schedule the final inspection
Answer: Obtain required permits
Rationale: Permits ensure the project complies with building codes before
construction begins.
3. Which code primarily governs residential construction?
A. National Electrical Code only
B. Uniform Plumbing Code only
C. International Residential Code (IRC)
D. International Fire Code only
Answer: International Residential Code (IRC)
Rationale: The IRC establishes minimum standards for one- and two-family
dwellings.
4. What is the primary purpose of building codes?
A. Increase project costs
B. Restrict construction methods
C. Protect public health, safety, and welfare
D. Limit contractor competition
Answer: Protect public health, safety, and welfare
Rationale: Building codes establish minimum standards for safe construction.
, 5. Which document describes the materials and workmanship required for a
project?
A. Invoice
B. Time sheet
C. Specifications
D. Warranty
Answer: Specifications
Rationale: Specifications define material quality, installation methods, and
workmanship requirements.
6. A footing primarily serves to:
A. Support roof framing
B. Support wall finishes
C. Transfer building loads safely to the soil
D. Improve insulation
Answer: Transfer building loads safely to the soil
Rationale: Footings distribute structural loads to prevent settlement.
7. Which soil condition generally provides the poorest bearing capacity?
A. Gravel
B. Dense sand
C. Organic soil
D. Bedrock
Answer: Organic soil
, Rationale: Organic soils compress easily and are unsuitable for supporting
foundations.
8. Concrete gains most of its design strength after approximately:
A. 3 days
B. 7 days
C. 14 days
D. 28 days
Answer: 28 days
Rationale: Concrete is typically designed based on its 28-day compressive
strength.
9. Reinforcing steel in concrete primarily helps resist:
A. Compression only
B. Moisture
C. Tension forces
D. Heat transfer
Answer: Tension forces
Rationale: Concrete is strong in compression but weak in tension, making
reinforcement necessary.
10.Anchor bolts are primarily used to:
A. Support roofing
B. Hold windows
C. Secure framing to the foundation
D. Attach drywall
Contractor Examination (F13) Practice
Exam 2026 | 100 Questions & Answers
with Detailed Rationales | Complete
Exam Prep Study Guide | Denver
Residential Contractor License Test Prep
1. What is the primary responsibility of a Class C Residential Building
Contractor?
A. Construct commercial skyscrapers
B. Build industrial facilities
C. Construct, remodel, repair, or improve residential structures within the
license scope
D. Install municipal utilities
Answer: Construct, remodel, repair, or improve residential structures within the
license scope
Rationale: A Class C Residential Building Contractor focuses on residential
construction, remodeling, repairs, and improvements as permitted by local
licensing regulations.
, 2. Before beginning construction, the contractor should first:
A. Hire subcontractors
B. Purchase finish materials
C. Obtain required permits
D. Schedule the final inspection
Answer: Obtain required permits
Rationale: Permits ensure the project complies with building codes before
construction begins.
3. Which code primarily governs residential construction?
A. National Electrical Code only
B. Uniform Plumbing Code only
C. International Residential Code (IRC)
D. International Fire Code only
Answer: International Residential Code (IRC)
Rationale: The IRC establishes minimum standards for one- and two-family
dwellings.
4. What is the primary purpose of building codes?
A. Increase project costs
B. Restrict construction methods
C. Protect public health, safety, and welfare
D. Limit contractor competition
Answer: Protect public health, safety, and welfare
Rationale: Building codes establish minimum standards for safe construction.
, 5. Which document describes the materials and workmanship required for a
project?
A. Invoice
B. Time sheet
C. Specifications
D. Warranty
Answer: Specifications
Rationale: Specifications define material quality, installation methods, and
workmanship requirements.
6. A footing primarily serves to:
A. Support roof framing
B. Support wall finishes
C. Transfer building loads safely to the soil
D. Improve insulation
Answer: Transfer building loads safely to the soil
Rationale: Footings distribute structural loads to prevent settlement.
7. Which soil condition generally provides the poorest bearing capacity?
A. Gravel
B. Dense sand
C. Organic soil
D. Bedrock
Answer: Organic soil
, Rationale: Organic soils compress easily and are unsuitable for supporting
foundations.
8. Concrete gains most of its design strength after approximately:
A. 3 days
B. 7 days
C. 14 days
D. 28 days
Answer: 28 days
Rationale: Concrete is typically designed based on its 28-day compressive
strength.
9. Reinforcing steel in concrete primarily helps resist:
A. Compression only
B. Moisture
C. Tension forces
D. Heat transfer
Answer: Tension forces
Rationale: Concrete is strong in compression but weak in tension, making
reinforcement necessary.
10.Anchor bolts are primarily used to:
A. Support roofing
B. Hold windows
C. Secure framing to the foundation
D. Attach drywall
