HVAC Final Exam Questions & Answers Already Passed!!

What is an HVAC System? - Answer-all the items needed to maintain thermal comfort within a space or group of spaces What are the four components of an HVAC system? - Answer-Fans Pumps Compressor Evaporator What is a PTAC? - Answer-Packaged Terminal Air Conditioner What is a PTHP? - Answer-Packaged Terminal Heat Pump List the heat transfer equipment (3) - Answer-Boiler Chiller Coil What is a zone? - Answer-A zone is a separately controlled space or group spaces What is VAV and describe it. - Answer-Variable Air Volume - the volume of conditioned air varies to maintain room conditions What is CV and describe it. - Answer-Constant Volume - the temperature of conditioned air varies to maintain room conditions What three criteria are zones in buildings based upon? - Answer-Exposure - space orientation/grouping Internal Loads - people, electrical, equipment Application - space use and/or schedule What are the three type of HVAC systems? - Answer-All Air - uses ducts, fans, and coilsAll Water - uses pipes, pumps, chillers, and boilers Air-Water - uses both air and water components What are the four equipment classifications? - Answer-Package Commercial Air Unit Built-Up Unit Residential Split-System Unit Computer/Telecom Room Units What are some ductwork materials? - Answer-Carbon Steel (Black Iron) Aluminum Stainless Steel Copper Fiber Reinforced Plastic Polyvinyl Chloride Polyvinyl Steel Concrete Rigid Fibrous Glass (Ductboard) Sheetrock Flex-duct Metal Round