NCIDQ - IDPX Q Practice Test (Questions + Answers) LATEST UPDATE

NCIDQ - IDPX Q Practice Test (Questions + Answers) LATEST UPDATE All of the following are true about gypsum wallboard EXCEPT? 1. Synthetic gypsum is chemically identical to natural mined gypsum 2. The main source of synthetic gypsum in North America is flue-gas desulfurization 3. Its manufacture, use, and disposal has an effect on the environment 4. 70% of the industry's total use of gypsum is synthetic gypsum Answer: 4. 70% of the industry's total use of gypsum is synthetic gypsum, Only about 28% of the industry's total gypsum is synthetic. Which of the following light fixtures would NOT be appropriate to use in a residential space? 1. HID Downlight 2. Incandescent track system 3. Fluorescent troffer 4. Halogen track system Answer: 1. HID Downlight The HID lamp warm-up process can take 3 - 7 minutes, depending on ambient temperature conditions, so this is not appropriate for residential use where someone would want light to come on instantly. 00:0203:30 Examples of items included in a complex water conservation system that requires more involvement by the interior designer and full design team include: 1. Purple color-coded graywater piping and flow restrictors on showerheads and faucets 2. Purple color-coded graywater piping and dual piped potable/non-potable water systems. 3. Flow restrictors on showerheads and faucets and water-efficient plumbing fixtures 4. Dual piped potable/non-potable water systems and water-efficient plumbing fixtures Answer: 2. Purple color-coded graywater piping and dual piped potable/non-potable water systems. Interior designers are in an excellent position to advocate the use of efficient plumbing fixtures and water-using appliances and equipment, as well as water restrictors and aerators for faucets and showerheads and sensor-activated faucets on sinks and lavatories. More complex conservation strategies that would require the involvement of the entire design team include dual plumbing that separates potable and non-potable systems using purple pipes for gray water, using tankless water heaters where appropriate and recirculating hot water. Leak control also saves water. Acceptable riser/tread combinations for residential spaces For most stairs, a 7" riser and a 11" tread is a good combination and satisfies the code. IBC limits risers to 7" in most stairways and 7.75" in residential stairways. The minimum tread depth by code is 11" or 10" in residential stairways. What are challenges with acoustic separation most often caused by? Mechanical and electrical services. These often pose problems with maintaining acoustic separation, especially in offices where ducts, convectors, and piping run continuously along an exterior wall while partitions intersect the exterior wall at regular intervals. Special detailing or construction may be required to create a continuous sound seal around the floor, the ceiling, above the ceiling, and along the perimeter wall. For example, the cracks between the wallboard and all pipe and duct penetrations must be sealed with acoustic sealant. Which of the following would not be considered a dead load? 1. Floors 2. Interior walls 3. Mechanical equipmen