Project-Planning-Design Exam Dumps - ARE 5.0 Project Planning & Design (PPD)

Comprehensive and Detailed Explanation From Exact Extract:

A raised access floor system provides a flexible, accessible space beneath the finished floor for routing power, data, telecommunications, and security cables. It facilitates easy reconfiguration and tenant fit-out modifications without major disruption.

Poke-through systems (A) provide limited point access for power/data and are less flexible for extensive rewiring.

Cellular deck systems (B) are structural components, not distribution systems.

Flat cable wiring (D) is a wiring method but does not provide the physical infrastructure for flexibility.

Comprehensive and Detailed Explanation From Exact Extract:

Enhancing acoustic design requires:

(A) Careful location of noise-sensitive spaces away from noise sources.

(B) Choosing structural floor systems with good sound isolation between floors.

(D) Using exterior barriers (natural or built) to reduce external noise.

(E) Selecting interior finishes with favorable acoustical absorption properties.

Minimizing steel stud framing (C) is not always required; proper detailing can address acoustic issues.

Treatments that decrease sound absorption (F) worsen acoustics.

Comprehensive and Detailed Explanation From Exact Extract:

Changing from a pier-and-beam system with an open crawlspace to a slab-on-grade floor has several impacts:

Warmer floors in the evenings (A): Concrete slab-on-grade floors have high thermal mass, which can absorb heat during the day and release it slowly, resulting in warmer floors at night, particularly beneficial in cold climates.

Limited future plumbing flexibility (C): Plumbing embedded in or beneath slabs is difficult to access or modify after construction, unlike crawlspaces that provide easier access to underfloor plumbing for repairs or modifications.

More steel reinforcing (B): While slabs do require reinforcement, this is often comparable or less than the framing required for pier-and-beam floors, so this is not necessarily an impact.

Flooring finishes (D): Slab floors can accommodate many finishes; thus, limitations are generally minimal.

Better moisture control (E): Slabs require moisture barriers and careful detailing to control moisture; crawlspaces can sometimes be easier to ventilate but may allow moisture intrusion if not properly designed.

HVAC ductwork installation (F): Crawlspaces allow ducts to be located under the floor; slabs typically require ducts to be placed above or within conditioned spaces.

Thus, the most significant impacts are warmer floors and reduced plumbing flexibility.

The northwest elevation faces the Pedestrian Access Easement as per site and plan documents.

Variances for facade non-compliance are typically granted where they impact the pedestrian experience.

Therefore, the facade requiring the variance must face this easement to comply with PD and planning conditions.

The other elevations (A, C, D) do not face the pedestrian access and thus do not qualify.

Comprehensive and Detailed Explanation From Exact Extract:

Steel conduit is primarily used to support and protect electrical conductors from physical damage and to provide mechanical protection. It can also serve as an equipment grounding conductor in many applications, but a separate ground wire is sometimes still required depending on code and installation specifics.

Option A is incorrect because steel conduit often acts as the grounding path, so a separate ground wire is not always required.

Aluminum conduit (B) is not commonly used in all the same locations as steel, especially due to corrosion concerns.

PVC conduit (C) is nonmetallic and does not provide a grounding path; a separate ground wire is needed.

Comprehensive and Detailed Explanation From Exact Extract:

Redesigning a building for high seismic risk typically requires enhanced lateral force-resisting systems:

Ductile moment-resisting frames (B) involve special detailing for energy dissipation and ductility, requiring larger and more complex reinforcement, resulting in high construction costs.

Adding shear walls (A) or braced frames (C) can be more economical lateral systems but may affect architectural layouts.

Bracing a soft story (D) is a mitigation technique and usually less costly than complete frame redesign.

Therefore, ductile moment-resisting frame redesign is the costliest option.

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.

Comprehensive and Detailed Explanation From Exact Extract:

When planning truck entrances and exits on an urban commercial site, several key factors are considered: traffic flow, safety, convenience, and minimizing interference with customer parking and pedestrian areas.

Option C is located on a one-way street that allows trucks to enter or exit smoothly without conflicting with two-way traffic or customer parking. Since the street next to point C is one-way with traffic moving away from the intersection, trucks exiting at C can merge safely and efficiently into traffic.

Option A is adjacent to customer parking, and a truck entrance here would interfere with customer access and create safety hazards.

Option B is positioned near a traffic light on a two-way street, which may complicate truck maneuvering and increase congestion at the intersection.

Option D is on a two-way street and near an intersection, which could disrupt traffic flow and cause potential safety conflicts with turning vehicles and pedestrians.

NCARB’s ARE 5.0 PPD content emphasizes locating service and delivery entrances away from customer areas and at points that allow safe, efficient truck access without disrupting primary pedestrian and vehicle circulation.