Guam General Contractor Licensing –
Class B Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which document defines the scope of work, materials, and execution
requirements for a construction project?
A. Building permit
B. Specifications
C. Change order
D. Punch list
Answer: B
Rationale: Specifications provide detailed written requirements for
materials, workmanship, and construction methods.
2. What is the primary purpose of a building permit?
A. To hire subcontractors
B. To approve construction plans for compliance
C. To guarantee project funding
D. To set project timelines
Answer: B
Rationale: A building permit ensures that proposed construction
complies with local building codes and regulations.
3. Which trade is primarily responsible for installing drainage, waste, and
vent systems?
A. Electrical
B. Carpentry
, C. Plumbing
D. Masonry
Answer: C
Rationale: Plumbing systems include drainage, waste, and vent
installations.
4. What does a “change order” typically involve?
A. Final inspection report
B. Modification to contract scope
C. Safety violation notice
D. Equipment rental agreement
Answer: B
Rationale: A change order documents any modification to the original
construction contract.
5. Which of the following is the correct sequence of the construction
process?
A. Finish, framing, foundation
B. Foundation, framing, finishing
C. Framing, finishing, foundation
D. Roofing, foundation, framing
Answer: B
Rationale: Construction typically progresses from foundation to
framing to finishing work.
6. What is the main function of a footing?
A. Support roof loads
B. Distribute building loads to soil
C. Provide insulation
D. Hold drywall
Answer: B
Rationale: Footings spread structural loads evenly to prevent
settlement.
7. Which tool is used to ensure a surface is level horizontally?
A. Plumb bob
, B. Chalk line
C. Spirit level
D. Framing square
Answer: C
Rationale: A spirit level checks horizontal level and vertical plumb.
8. What is the purpose of rebar in concrete?
A. Increase flexibility
B. Prevent cracking by adding tensile strength
C. Speed up curing
D. Reduce cement content
Answer: B
Rationale: Reinforcing steel (rebar) improves concrete’s tensile
strength.
9. Which material is most commonly used for structural framing in
residential construction?
A. Aluminum
B. Steel beams only
C. Wood lumber
D. Glass panels
Answer: C
Rationale: Wood is widely used for residential framing due to cost
and availability.
10. What does OSHA primarily regulate?
A. Architectural design
B. Workplace safety
C. Building aesthetics
D. Material pricing
Answer: B
Rationale: OSHA ensures safe and healthy working conditions on
construction sites.
11. What is the purpose of a vapor barrier?
A. Increase airflow
Class B Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which document defines the scope of work, materials, and execution
requirements for a construction project?
A. Building permit
B. Specifications
C. Change order
D. Punch list
Answer: B
Rationale: Specifications provide detailed written requirements for
materials, workmanship, and construction methods.
2. What is the primary purpose of a building permit?
A. To hire subcontractors
B. To approve construction plans for compliance
C. To guarantee project funding
D. To set project timelines
Answer: B
Rationale: A building permit ensures that proposed construction
complies with local building codes and regulations.
3. Which trade is primarily responsible for installing drainage, waste, and
vent systems?
A. Electrical
B. Carpentry
, C. Plumbing
D. Masonry
Answer: C
Rationale: Plumbing systems include drainage, waste, and vent
installations.
4. What does a “change order” typically involve?
A. Final inspection report
B. Modification to contract scope
C. Safety violation notice
D. Equipment rental agreement
Answer: B
Rationale: A change order documents any modification to the original
construction contract.
5. Which of the following is the correct sequence of the construction
process?
A. Finish, framing, foundation
B. Foundation, framing, finishing
C. Framing, finishing, foundation
D. Roofing, foundation, framing
Answer: B
Rationale: Construction typically progresses from foundation to
framing to finishing work.
6. What is the main function of a footing?
A. Support roof loads
B. Distribute building loads to soil
C. Provide insulation
D. Hold drywall
Answer: B
Rationale: Footings spread structural loads evenly to prevent
settlement.
7. Which tool is used to ensure a surface is level horizontally?
A. Plumb bob
, B. Chalk line
C. Spirit level
D. Framing square
Answer: C
Rationale: A spirit level checks horizontal level and vertical plumb.
8. What is the purpose of rebar in concrete?
A. Increase flexibility
B. Prevent cracking by adding tensile strength
C. Speed up curing
D. Reduce cement content
Answer: B
Rationale: Reinforcing steel (rebar) improves concrete’s tensile
strength.
9. Which material is most commonly used for structural framing in
residential construction?
A. Aluminum
B. Steel beams only
C. Wood lumber
D. Glass panels
Answer: C
Rationale: Wood is widely used for residential framing due to cost
and availability.
10. What does OSHA primarily regulate?
A. Architectural design
B. Workplace safety
C. Building aesthetics
D. Material pricing
Answer: B
Rationale: OSHA ensures safe and healthy working conditions on
construction sites.
11. What is the purpose of a vapor barrier?
A. Increase airflow
