NCIDQ-Chap 18-Mechanical & Electrical Systems Q&A Latest Review Test 2023

NCIDQ-Chap 18-Mechanical & Electrical Systems Q&A Latest Review Test 2023 The device that controls the volume of air and its deistribution in an HVAC systems is called a A.) convector B.) grille C.) register D.) duct - ANS-C is correct. A convector transfers heat from a hot water system to the air. A grille may control the distribution of air but has not provisions for controlling the volume of air. A duct simply directs the transfer of air from one point to another. What type of system would be best for an open office plan so the heating and cooling for each workstation could be individually controlled? A.) all-air B.) all-water C.) radiant panel D.) air-water - ANS-A is correct. An all-air system can be subdivided into as many individually controlled areas as needed. Radiant panels could be used, but it would be awkward to locate them in the ceiling and the cost would be much higher than that of an all-air system. What is NOT allowed in a return air plenum? A.) fire dampers B.) electrical cable C.) water supply pipes D.) wood blocking - ANS-D is correct. Most building codes do not allow nay combustible material in a return-air plenum (the space above the suspended ceiling). Electrical cable is allowed if it is enclosed in steel conduit. In working with an electrical engineer on a project, what information would the designer most likely put on the interior design power plan? A.) switch location B.) dedicated outlets C.) conduit sizing D.) speaker locations - ANS-B is correct. The interor designer would not determine conduit size or put speaker locations on the power plan. This eliminates options C and D. Switch locations would placed on the reflected ceiling plan. What type of sprinkler head hsould be used for a decorative, open-grid, wood-slate ceiling suspended from the structural floor above?...