Commercial Contractor – National Portion exam
Try 10 realistic commercial construction and code questions before you buy the full practice exam.
Answer each question, then click “Check my score” at the bottom of the page. You’ll see your total score plus the correct answers for every item.How this free practice exam works
This 10-question mini-exam is designed to mirror the style and cognitive level of the Commercial Contractor – National Portion exam, with a focus on commercial building codes, structural design, safety, and basic estimating.- Choose one answer for each multiple-choice question.
- Click “Check my score” to see how you did.
- Instant feedback shows which questions are correct or incorrect and reveals the right answers.
This practice content is for exam preparation only and is not endorsed or approved by any state licensing board, building department, exam provider, or code publisher. Always refer to the most current building code and your jurisdiction’s amendments.
Commercial Contractor – National Portion exam (10 Questions)
A spread footing supports steel columns for a multi-story office building in a region with seasonal frost. According to typical building code requirements, the bottom of the footing should be located:
A structural engineer specifies a design live load for a typical open office floor in a commercial building. Which value is commonly used for this live load in pounds per square foot (psf)?
A corridor serving several tenant spaces in a high-rise office building must maintain a required fire-resistance rating. Which construction detail best helps preserve the rating at penetrations for mechanical and electrical systems?
An interior exit stair in a multistory commercial structure is being framed. Which combination of maximum riser height and minimum tread depth most closely aligns with common building code provisions for a primary means of egress stair?
A new concrete slab for a warehouse floor will be subject to forklift traffic and rack loads. The structural drawings call for normal-weight concrete with a specified compressive strength at 28 days. Which value below is most typical for this type of application?
A steel beam is shown on the plans with the designation W18×35. What does the “18” in this designation indicate?
A site plan for a new shopping center shows accessible parking spaces and routes. Which statement best reflects a common accessibility requirement for an exterior ramp serving an accessible entrance?
Contract documents for a commercial building show discrepancies between the structural plans and the written specifications regarding the size of roof joists. Under typical construction contract interpretation rules, which document usually takes precedence?
A construction schedule for a large retail project is prepared using a critical path method (CPM) network. Why is the critical path especially important to the project manager?
A concrete footing for a commercial column is reinforced with six #6 bars, each 20 feet long. How many linear feet of reinforcing steel are required for this footing?