NCARB Project-Planning-Design Exam Dumps - Actual Questions Answers

Comprehensive and Detailed Explanation From Exact Extract:

The owner's requirements include:

Warm light: Lower color temperatures (~2700K to 3000K) produce warm light, flattering food and ambiance. Both Mornath (2800K) and Bea-Lele (2800K) meet this.

Energy efficiency: LEDs are generally more energy efficient than halogen, fluorescent, and metal halide fixtures.

Accurate color rendering: A high Color Rendering Index (CRI) above 90 is desirable to accurately render food colors. Bea-Lele Lighting (91 CRI) and VeriSPEK Fixtures (95 CRI) meet this.

Between Bea-Lele and VeriSPEK, LED fixtures are more energy efficient than halogen, making Bea-Lele Lighting (LED, 2800K, 91 CRI) the best choice.

Comprehensive and Detailed Explanation From Exact Extract:

For efficient weekend cooling in a multi-story office building, placing fan equipment centrally between the conditioned spaces reduces duct lengths, allows better zoning, and minimizes energy use.

In option C, fans are located mid-building between office floors and other uses, allowing for more efficient distribution and individual zone control.

Other options (A, B, D) place fans either all at one end or stacked at one side, increasing duct runs and reducing flexibility in zoning, which can lead to inefficiency during reduced loads like weekends.

NCARB PPD guidelines emphasize mechanical system design that optimizes equipment placement to balance energy efficiency, occupant comfort, and system flexibility.

Comprehensive and Detailed Explanation From Exact Extract:

A 1:20 slope means a 5% grade (1 vertical unit per 20 horizontal units), which is slightly steeper than the ideal maximum slope for accessible ramps.

Option C: Cutting diagonally across the slope at 1:12 (~8.33%) slope without a handrail is the most cost-effective design that still complies with accessibility standards. According to the Americans with Disabilities Act (ADA) and ICC A117.1, the maximum slope for an accessible ramp is 1:12. Handrails are required on ramps with a rise greater than 6 inches (150 mm). If the rise is less than 6 inches, handrails are not required.

Because the diagonal cut reduces the slope to 1:12 and the total rise is likely less than 6 inches given the gentle 1:20 original slope, handrails are not mandatory, making this solution economical and code compliant.

Option A: Switchback ramps at 1:12 with handrails are compliant but more expensive due to increased construction complexity and space requirements.

Option B: A 1:10 slope (10%) exceeds the maximum allowed slope for accessible ramps and requires handrails, thus non-compliant.

Option D: Following the existing 1:20 slope without modification does not provide the maximum accessibility slope and may be acceptable but might not comply with certain stricter local codes for ramps.

Therefore, Option C balances accessibility, cost, and compliance optimally.