HVAC Final Exam Questions and Answers 100% Pass

HVAC Final Exam Questions and Answers 100% Pass What is an HVAC System? - Correct 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? - Correct Answer ️️ -Fans Pumps Compressor Evaporator What is a PTAC? - Correct Answer ️️ -Packaged Terminal Air Conditioner What is a PTHP? - Correct Answer ️️ -Packaged Terminal Heat Pump List the heat transfer equipment (3) - Correct Answer ️️ -Boiler Chiller Coil What is a zone? - Correct Answer ️️ -A zone is a separately controlled space or group spaces What is VAV and describe it. - Correct Answer ️️ -Variable Air Volume - the volume of conditioned air varies to maintain room conditions What is CV and describe it. - Correct Answer ️️ -Constant Volume - the temperature of conditioned air varies to maintain room conditions What three criteria are zones in buildings based upon? - Correct Answer ️️ -Exposure - space orientation/grouping Internal Loads - people, electrical, equipment Application - space use and/or schedule What are the three type of HVAC systems? - Correct Answer ️️ -All Air - uses ducts, fans, and coils All Water - uses pipes, pumps, chillers, and boilers Air-Water - uses both air and water components What are the four equipment classifications? - Correct Answer ️️ -Package Commercial Air Unit Built-Up Unit Residential Split-System Unit Computer/Telecom Room Units What are some ductwork materials? - Correct 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 What is SMACNA? - Correct Answer ️️ -Sheet Metal & Air Conditioning Contractors National Association What is the purpose of ductwork insulation? - Correct Answer ️️ -prevent condensation reduce noise reduce heat loss/gain List the 8 steps to duct work design. - Correct Answer ️️ -1. Study plans & arrange outlets 2. Select air outlets 3. Select duct distribution system 4. layout duct distribution system 5. Size ductwork 6. Calculate system static pressure 7. Select fans 8. analyze plans for conflicts or noise problem