CO General Contractor Class C Exam
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a building permit?
A) To collect fees for the municipality
B) To enforce zoning setbacks only
C) To ensure construction complies with applicable codes and safety
standards
D) To approve contractor payment schedules
Answer: C
Rationale: A building permit verifies plans meet codes and safety
requirements before work begins, protecting public health and safety.
2. Concrete’s compressive strength is normally measured at which age?
A) 3 days
B) 28 days
C) 7 days
D) 56 days
Answer: B
Rationale: Standard tests measure concrete strength at 28 days as the
accepted reference for design strength.
3. Which document defines the contractual relationship between owner
and prime contractor?
A) Purchase order
B) Request for Proposal (RFP)
C) Construction contract
, D) Bid bond
Answer: C
Rationale: The construction contract outlines scope, terms,
responsibilities, payment, and dispute resolution.
4. In scheduling, the critical path is:
A) The cheapest sequence of tasks
B) The path with the greatest number of tasks
C) The longest-duration sequence of activities that determines
project duration
D) The easiest sequence to accelerate
Answer: C
Rationale: The critical path’s total duration controls the project
finish date; delaying it delays the project.
5. What does “RFI” stand for in construction documents?
A) Request for Invoice
B) Request for Information
C) Review for Inspection
D) Required Field Inspection
Answer: B
Rationale: RFIs clarify contract documents, drawings, or
specifications when details are missing or ambiguous.
6. The main purpose of a performance bond is to:
A) Guarantee materials quality
B) Cover worker compensation claims
C) Ensure the contractor completes the project per contract
D) Provide long-term maintenance
Answer: C
Rationale: A performance bond protects the owner if the contractor
fails to perform; a surety completes or compensates.
7. Which personal protective equipment (PPE) is required when working
in areas with falling-object hazards?
A) Safety glasses only
B) Earplugs and gloves
C) Hard hat
D) Steel-toe boots only
Answer: C
, Rationale: Hard hats protect against head injuries from falling or
flying objects on construction sites.
8. The term “substantial completion” means:
A) Final payment has been made
B) The project is sufficiently complete for the owner to occupy or
use for its intended purpose
C) Warranty period has started only after certificates are issued
D) All punch-list items completed
Answer: B
Rationale: Substantial completion allows use/occupancy despite
minor outstanding items (punch list).
9. What is the typical slump test used to measure?
A) Aggregate gradation
B) Compressive strength of steel
C) Workability (consistency) of fresh concrete
D) Water absorption in masonry
Answer: C
Rationale: Slump indicates concrete’s ease of placement and
consolidation; too high/low slump affects performance.
10. A “change order” is used to:
A) Replace the contractor mid-project
B) File a permit application
C) Formally modify the contract’s scope, price, or schedule
D) List subcontractors on site
Answer: C
Rationale: Change orders document and authorize contract
modifications agreed by owner and contractor.
11. Which insurance covers bodily injury to the public from
construction operations?
A) Equipment insurance
B) Builder’s risk
C) Commercial general liability (CGL)
D) Professional liability
Answer: C
Rationale: CGL protects against third-party bodily injury/property
damage claims arising from operations.
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a building permit?
A) To collect fees for the municipality
B) To enforce zoning setbacks only
C) To ensure construction complies with applicable codes and safety
standards
D) To approve contractor payment schedules
Answer: C
Rationale: A building permit verifies plans meet codes and safety
requirements before work begins, protecting public health and safety.
2. Concrete’s compressive strength is normally measured at which age?
A) 3 days
B) 28 days
C) 7 days
D) 56 days
Answer: B
Rationale: Standard tests measure concrete strength at 28 days as the
accepted reference for design strength.
3. Which document defines the contractual relationship between owner
and prime contractor?
A) Purchase order
B) Request for Proposal (RFP)
C) Construction contract
, D) Bid bond
Answer: C
Rationale: The construction contract outlines scope, terms,
responsibilities, payment, and dispute resolution.
4. In scheduling, the critical path is:
A) The cheapest sequence of tasks
B) The path with the greatest number of tasks
C) The longest-duration sequence of activities that determines
project duration
D) The easiest sequence to accelerate
Answer: C
Rationale: The critical path’s total duration controls the project
finish date; delaying it delays the project.
5. What does “RFI” stand for in construction documents?
A) Request for Invoice
B) Request for Information
C) Review for Inspection
D) Required Field Inspection
Answer: B
Rationale: RFIs clarify contract documents, drawings, or
specifications when details are missing or ambiguous.
6. The main purpose of a performance bond is to:
A) Guarantee materials quality
B) Cover worker compensation claims
C) Ensure the contractor completes the project per contract
D) Provide long-term maintenance
Answer: C
Rationale: A performance bond protects the owner if the contractor
fails to perform; a surety completes or compensates.
7. Which personal protective equipment (PPE) is required when working
in areas with falling-object hazards?
A) Safety glasses only
B) Earplugs and gloves
C) Hard hat
D) Steel-toe boots only
Answer: C
, Rationale: Hard hats protect against head injuries from falling or
flying objects on construction sites.
8. The term “substantial completion” means:
A) Final payment has been made
B) The project is sufficiently complete for the owner to occupy or
use for its intended purpose
C) Warranty period has started only after certificates are issued
D) All punch-list items completed
Answer: B
Rationale: Substantial completion allows use/occupancy despite
minor outstanding items (punch list).
9. What is the typical slump test used to measure?
A) Aggregate gradation
B) Compressive strength of steel
C) Workability (consistency) of fresh concrete
D) Water absorption in masonry
Answer: C
Rationale: Slump indicates concrete’s ease of placement and
consolidation; too high/low slump affects performance.
10. A “change order” is used to:
A) Replace the contractor mid-project
B) File a permit application
C) Formally modify the contract’s scope, price, or schedule
D) List subcontractors on site
Answer: C
Rationale: Change orders document and authorize contract
modifications agreed by owner and contractor.
11. Which insurance covers bodily injury to the public from
construction operations?
A) Equipment insurance
B) Builder’s risk
C) Commercial general liability (CGL)
D) Professional liability
Answer: C
Rationale: CGL protects against third-party bodily injury/property
damage claims arising from operations.
