NCIDQ IDPX Prep Exam

Why does the HVAC system need to be balanced at the end of a commercial project? A. To verify that air quality levels are within the design specifications B. To detect significant air leaks in ductwork C. To adjust air flow at each device location to meet the criteria in the engineer's design D. To determine that each office is receiving the amount of outside air required by the design - Answer- The correct answer is C. Balancing the HVAC system is the process of measuring air flow from diffusers and making adjustments to avoid hot and cold spots within a space. It does not measure air quality, ductwork leaks or outside air. P1 Project Coordination The typical chronological order of system installation in new commercial construction is: A. HVAC, Plumbing, Electrical B. Electrical, Plumbing, HVAC C. Plumbing, HVAC, Electrical D. Electrical, HVAC, Plumbing - Answer- The correct answer is C. Once the interior of a building is sufficiently protected from the weather, the waste lines and water supply lines of the plumbing system are installed and, if specified, the pipes for the sprinkler system. The major part of the work for the HVAC system is carried out, including the installation of boilers, chillers, cooling towers, pumps, fans, piping, and ductwork. Electrical, communications, and control wiring are routed through the building. P3 Building Systems and Integration In which situation would an interior designer use a construction change directive? A. To request an electrical contractor not listed by the contractor in the bid [tender] documents B. To request pricing for an additional receptacle per the client's request C. T