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ACG CxA Exam Questions with Verified Answers
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ACG CxA Exam Questions with VerifiedAnswers
AABC - -Associated Air Balance Council
-ASHRAE - -American Society of Heating, Refrigerating and Air-Conditioning
Engineers
-ANSI - -American National Standards Institute
-ASTM - -ASTM International, formerly known as American Society for
Testing and Materials
-ISO - -International Organization for Standardization
-ASME - -American Society of Mechanical Engineers
-NFPA - -National Fire Protection Association
-SMACNA - -Sheet Metal and Air Conditioning Contractors' National
Association
-What does EBCx stand for? - -Existing Building Commissioning
-What does FIM stand for? - -Facility improvement measure
-What does NETA stand for? - -International Electricl Testing Associaiton
-What does NFPA stand for? - -National Fire Protection Associaiton
-What does NICET stand for? - -National Institute for Certificaiton in
Engineering Technology
-What does CFR stand for? - -Current Facility Requirements
-Define ACG - -AABC Commissioning Group. A non-profit association
dedicated to the advancement of the building commissioning industry
-What does AABC stand for? - -Associated air balance council
-What does AI stand for? - -Analog Input
-What does AO stand for? - -Analog Output
-What does ATC stand for? - -Automatic Temperature Controls
,-What does BAS stand for? - -Building Automation system
-What does CA stand for? - -Commissioning Authority
-What does CT stand for? - -Cooling Tower
-What does CHWR stand for? - -Chilled water return
-What does CHWS stand for? - -Chilled water supply
-What does CWR stand for? - -Condenser water return
-What does CWS stand for? - -Condenser water supply
-What does DDC stand for? - -Direct Digital Control
-What does DI stand for? - -Digital Input
-What does DID stand for? - -Design Intent Document
-What does DO stand for? - -Digital output
-Define FPT - -Functional Preformance Test. Process of testing the
DDC/BAS/EMS in every possible condition and verifying correct equipment
response. This is the "Heart of the commissioning process".
-What does HVAC stand for? - -Heating, Ventilation & Air Conditioning
-What does IAQ stand for? - -Indoor Air Quality
-What does LEED stand for? - -Leadership in Energy and Environmental
Design, USGBC trademarked "Green Building Rating System"
-What doesO&M stand for? - -Operation and Maintenance
-What does OA stand for? - -Outside Air
-What does PM stand for? - -Preventive Maintenance
-What does RFP stand for? - -Request for proposal
-What does RFT stand for? - -Resolution Tracking Form
-What does SVC stand for? - -System Verificaiton Checklist
, -Define TAB - -Testing, Adjusting, and Balancing or Test and Balance.
Process of controlling air and water flow through HVAC equipment.
Recommended that a third party be directly contracted with owner
-What does TBE stand for? - -Test and Balance Engineer
-What does USGBC stand for? - -United States Green Building Council
-What does ECM stand for? - -Energy Conservation Measure
-What does ANSI stand for? - -Americans National Standards Institute
-What does ASTM stand for? - -American Society for Testing and Materials
International
-What does ISO stand for? - -International Organization for Standards
-What does ARI or AHRI stand for? - -Air Conditionaing, (Heating), and
Refrigeration Instiute
-What does ACCA stand for? - -Air Conditioning Contractors of America
-Define UL - -Underwriters Laboraories - Demonstrates safety, conformance,
sustainablility, etc.
-What does ASME stand for? - -American Society for Mechanical Enginners
-What does SMACNA stand for? - -Sheet Metal and Air Conditioning
Contractos National Institute
-Define Commissioning - -A systematic process that facilities and ensure the
required communication, coordination testing, and verification and results in
the delivery of a building whose HVAC systems preform as intended.
-During what phase should Commissioning be incorporated? - -For best
results Commissioning should be included in all phases of the design and
construction process
-Typically how much does Commissioning cost? - -Comprehensive HVAC
Comissioning cost 2%-5% of HVAC construction cost
-Define RFQ - -Request for Qualifications. Document asking for details
concerning previous relevant Cx experience. Information includes:
-Define Re-Commissioning - -Periodically Re-commissioning systems that
were commissioned when they were new. The purpose is to diagnose the
, cause of ongoing, unresolved problems or as part of a planned preventive
maintenance program to prevent issued from arising over time.
-Define Retro-Commissioning - -Commissioning of existing systems that
were not commissioned when they were new.
-Name the different contruciton models - -Plan and spec, Design- Build
-What is included in the Pre-design phase for Comprehensive HVAC Cx? - -1.
Cx is established as part of project
2. Owner select CxA
3. Develop Cx Scope
4. CxA review design intent document
-What is included in the Design phase for Comprehensive HVAC Cx? - -1.
Review design to ensure it accommodates Cx
2. Write Cx specifications defining contractor responsibilities
3. Establish project schedule
-What is included in the Construction phase for Comprehensive HVAC Cx? -
-1. CxA reviews contractor submittals
2. CxA updated Cx plan
3. Cx process is coordinated-through project schedule, Cx plan, and
commissioning meetings
4. Carry out document systems verification checks
5. Carry out the document equipment and system start-ups
6. TAB agency completes and documents test and balance work
-What is included in the Acceptance phase for Comprehensive HVAC Cx? - -
1. Carry out functional performance tests on all HVAC systems
2. Train the O&M staff for effective, ongoing operations and maintenance of
all systems
3. Provide full documentation
-What is included in the Post-Acceptance phase for Comprehensive HVAC
Cx? - -1. Correct any deficiencies, and carry out any required re-testing
2. Carry out any required "off-season" tests
3. Update documentation as required
-What is the purpose of ASHRAE Guideline 0? - -"...to describe the
commissioning process capable of verifying that a facility and its systems
meet the OPR."
-What is a systems manual? - -"A system-focused composite document that
includes the operation manual, maintenance manual, and additional
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