North Carolina Skilled Trades &
Construction Questions And Correct
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Rationales 2026 Q&A Instant Download
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1. What is the primary purpose of the North Carolina State Building Code?
A. To establish material prices
B. To regulate construction for health, safety, and welfare
C. To determine contractor profit margins
D. To replace all local zoning ordinances
Answer: To regulate construction for health, safety, and welfare
Rationale: The building code establishes minimum requirements intended to
protect occupants, workers, and the public.
2. Which organization administers licensing for general contractors in North
Carolina?
A. North Carolina Department of Transportation
B. North Carolina Board of Examiners of Electrical Contractors
C. North Carolina Licensing Board for General Contractors
D. North Carolina Fire Code Council
Answer: North Carolina Licensing Board for General Contractors
,Rationale: The North Carolina Licensing Board for General Contractors oversees
general contractor licensing and related classifications.
3. Which construction document normally shows the location and dimensions
of walls, doors, and rooms?
A. Electrical schedule
B. Floor plan
C. Soil report
D. Specification index
Answer: Floor plan
Rationale: A floor plan provides a horizontal representation of the building
layout and normally identifies rooms, walls, openings, and dimensions.
4. What is the safest first step when entering an excavation that may contain
hazardous conditions?
A. Begin digging immediately
B. Inspect the excavation and protective system
C. Remove all ladders
D. Stand underneath suspended loads
Answer: Inspect the excavation and protective system
Rationale: Excavations must be evaluated for hazards such as cave-ins, water
accumulation, hazardous atmospheres, and unsafe access.
5. What does a GFCI primarily protect against?
A. Overheating of motors
B. Ground-fault shock hazards
C. Excessive water pressure
D. Structural settlement
Answer: Ground-fault shock hazards
,Rationale: A GFCI detects differences between current leaving and returning
through the circuit and can disconnect power rapidly during a ground fault.
6. Which tool is commonly used to verify that a surface is level?
A. Chalk reel
B. Level
C. Pipe wrench
D. Cold chisel
Answer: Level
Rationale: A level determines whether a surface is horizontal or vertical within
the accuracy of the instrument.
7. What is the purpose of a construction specification?
A. To establish weather forecasts
B. To describe required materials, workmanship, and standards
C. To calculate employee taxes
D. To replace all drawings
Answer: To describe required materials, workmanship, and standards
Rationale: Specifications supplement drawings by describing products,
installation requirements, quality standards, and workmanship.
8. Which material is commonly used for reinforcing concrete?
A. Rebar
B. PVC
C. Gypsum board
D. Asphalt felt
Answer: Rebar
Rationale: Reinforcing steel increases concrete's ability to resist tensile stresses
and helps control cracking.
, 9. What is the primary function of a footing?
A. Support roofing materials
B. Distribute structural loads to the soil
C. Provide electrical grounding only
D. Prevent all wall movement
Answer: Distribute structural loads to the soil
Rationale: Footings spread loads over an adequate soil area so the structure can
be supported without excessive settlement.
10.What does PPE stand for?
A. Project Planning Estimate
B. Personal Protective Equipment
C. Professional Plumbing Evaluation
D. Public Permit Examination
Answer: Personal Protective Equipment
Rationale: PPE includes equipment such as hard hats, safety glasses, gloves,
hearing protection, and protective footwear.
11.Which trade is primarily responsible for installing water-supply piping and
drainage piping?
A. Electrical
B. Plumbing
C. Carpentry
D. Masonry
Answer: Plumbing
Rationale: Plumbing work includes systems that convey potable water and
remove wastewater, subject to applicable code requirements.
12.What is the primary purpose of a circuit breaker?
Construction Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A Instant Download
1. What is the primary purpose of the North Carolina State Building Code?
A. To establish material prices
B. To regulate construction for health, safety, and welfare
C. To determine contractor profit margins
D. To replace all local zoning ordinances
Answer: To regulate construction for health, safety, and welfare
Rationale: The building code establishes minimum requirements intended to
protect occupants, workers, and the public.
2. Which organization administers licensing for general contractors in North
Carolina?
A. North Carolina Department of Transportation
B. North Carolina Board of Examiners of Electrical Contractors
C. North Carolina Licensing Board for General Contractors
D. North Carolina Fire Code Council
Answer: North Carolina Licensing Board for General Contractors
,Rationale: The North Carolina Licensing Board for General Contractors oversees
general contractor licensing and related classifications.
3. Which construction document normally shows the location and dimensions
of walls, doors, and rooms?
A. Electrical schedule
B. Floor plan
C. Soil report
D. Specification index
Answer: Floor plan
Rationale: A floor plan provides a horizontal representation of the building
layout and normally identifies rooms, walls, openings, and dimensions.
4. What is the safest first step when entering an excavation that may contain
hazardous conditions?
A. Begin digging immediately
B. Inspect the excavation and protective system
C. Remove all ladders
D. Stand underneath suspended loads
Answer: Inspect the excavation and protective system
Rationale: Excavations must be evaluated for hazards such as cave-ins, water
accumulation, hazardous atmospheres, and unsafe access.
5. What does a GFCI primarily protect against?
A. Overheating of motors
B. Ground-fault shock hazards
C. Excessive water pressure
D. Structural settlement
Answer: Ground-fault shock hazards
,Rationale: A GFCI detects differences between current leaving and returning
through the circuit and can disconnect power rapidly during a ground fault.
6. Which tool is commonly used to verify that a surface is level?
A. Chalk reel
B. Level
C. Pipe wrench
D. Cold chisel
Answer: Level
Rationale: A level determines whether a surface is horizontal or vertical within
the accuracy of the instrument.
7. What is the purpose of a construction specification?
A. To establish weather forecasts
B. To describe required materials, workmanship, and standards
C. To calculate employee taxes
D. To replace all drawings
Answer: To describe required materials, workmanship, and standards
Rationale: Specifications supplement drawings by describing products,
installation requirements, quality standards, and workmanship.
8. Which material is commonly used for reinforcing concrete?
A. Rebar
B. PVC
C. Gypsum board
D. Asphalt felt
Answer: Rebar
Rationale: Reinforcing steel increases concrete's ability to resist tensile stresses
and helps control cracking.
, 9. What is the primary function of a footing?
A. Support roofing materials
B. Distribute structural loads to the soil
C. Provide electrical grounding only
D. Prevent all wall movement
Answer: Distribute structural loads to the soil
Rationale: Footings spread loads over an adequate soil area so the structure can
be supported without excessive settlement.
10.What does PPE stand for?
A. Project Planning Estimate
B. Personal Protective Equipment
C. Professional Plumbing Evaluation
D. Public Permit Examination
Answer: Personal Protective Equipment
Rationale: PPE includes equipment such as hard hats, safety glasses, gloves,
hearing protection, and protective footwear.
11.Which trade is primarily responsible for installing water-supply piping and
drainage piping?
A. Electrical
B. Plumbing
C. Carpentry
D. Masonry
Answer: Plumbing
Rationale: Plumbing work includes systems that convey potable water and
remove wastewater, subject to applicable code requirements.
12.What is the primary purpose of a circuit breaker?
