NCARB Cheat Sheet 2026

The 30 highest-yield NCARB facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which project delivery method gives the architect the most direct control over construction documentation quality and completeness before construction begins? → Design-Bid-Build (DBB)
2. A building's domestic hot water recirculation loop serves what function? → Ensures hot water is immediately available at fixtures without waiting
3. During construction administration, which document issued by the architect formally authorizes a contractor to proceed with additional work? → Change Order
4. Which factor is most critical when determining the required number of plumbing fixtures for a programming document? → Projected building occupancy load by gender
5. Which drawing type is primarily used to communicate the relationship between building systems and assemblies to contractors during construction? → Construction documents
6. Which fire suppression system is most appropriate for a computer server room? → Clean Agent Suppression System
7. During construction, the owner requests a significant design change that increases the contract sum. What document should be used? → Change Order
8. A post-tensioned concrete slab differs from conventionally reinforced concrete in what way? → Steel tendons are stressed after concrete placement to place the slab in compression
9. Sun path diagrams are used in site design primarily to determine what? → Shadow patterns on a site at different times of year to optimize building orientation
10. What is a 'view corridor' in urban planning and site design? → A protected sightline to a landmark or natural feature regulated by local ordinance
11. A 100-year storm event in hydrology means what? → A storm with a 1% probability of occurring in any given year
12. Which programming method involves structured interviews and observation to capture the client's true needs beyond stated requirements? → Post-Occupancy Evaluation and User Interviews
13. In plumbing design, what is the purpose of a P-trap? → To maintain a water seal that prevents sewer gases from entering the building
14. Under ADA, what is the maximum cross slope permitted on an accessible route? → 1:48 (approximately 2%)
15. Which type of specification section describes how work is to be installed or executed? → Execution
16. When coordinating reflected ceiling plans with structural framing drawings, the architect's primary concern is: → Verifying that ceiling penetrations and hangers avoid structural members
17. Which insurance is the contractor typically required to carry to protect against bodily injury and property damage claims from third parties? → Commercial General Liability
18. Which AIA document governs the general conditions of the contract for construction? → AIA A201
19. What is the primary purpose of a building's vapor retarder? → To limit moisture diffusion through the building envelope
20. Which lighting control strategy reduces energy use by automatically turning off lights when a space is unoccupied? → Occupancy Sensor Control
21. A 'heat island effect' in urban areas is primarily caused by what? → Dark impervious surfaces and lack of vegetation absorbing and retaining solar heat
22. Which document provides critical information about a site’s zoning restrictions? → Zoning ordinance
23. What is the difference between net square footage (NSF) and gross square footage (GSF) in a building program? → NSF is usable occupied area; GSF includes walls, circulation, mechanical, and structure
24. Under AIA A201, who bears the cost of correcting defective work discovered after final payment? → The Contractor, during the one-year correction period
25. Which code standard governs minimum energy performance requirements for commercial buildings in the US? → ASHRAE 90.1
26. Which HVAC system uses a single duct at a constant volume to condition all zones in a building? → Single-Zone Constant Air Volume (CAV)
27. Which accessibility standard must U.S. federal projects comply with in addition to the ADA Standards for Accessible Design? → Architectural Barriers Act (ABA) Accessibility Standards
28. What is the purpose of a zoning setback requirement? → To establish minimum distances between buildings and property lines
29. Which type of specification writing method gives the contractor the most flexibility in material selection while still ensuring performance outcomes? → Performance specification
30. In site grading, what does a 2% minimum slope away from a building foundation accomplish? → Directs surface water away from the structure to prevent basement infiltration