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Leed green associate iv. project systems and energy impacts question

This document contains 42 multiple choice questions from the LEED Green Associate exam related to project systems and energy impacts. Topics covered include mechanical cooling processes, refrigerants, ozone depletion, global warming potential, renewable energy sources, passive cooling systems, and energy efficiency.

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LEED Green Associate IV. Project Systems and Energy Impacts Question 1: What transfers heat during the mechanical cooling process? A Off-gassing B Biomass C Refrigerants D Feedback loop Question 2: What project areas would you find CFCs used in? A Radiant flooring B Centrifugal chillers C Refrigeration D Hot water heating Question 3: With regards to refrigerants what is a natural conflict between the prevention of ozone depletion and global warming? A Refrigerants contain ozone layer gases B Refrigerants that are neutral to the ozone layer are less efficient C Refrigerants that deplete the ozone layer are less efficient D Refrigerants contain global warming gases Question 4: Developing nations banned chlorofluorocarbons under the: A Executive Order 95-231 B Montreal Protocol
C EPA Clean Air Act D Kyoto Treaty Question 5: The Green Power credit gives preference to electricity products that: A Are greenhouse gas neutral B Come from grid-source, renewable energy technologies on a net zero pollution basis C Come from hydroelectric sources D Use cogeneration Question 6: What statement is true regarding a passive cooling system? A It does not use any refrigerants B It has a high indirect impact on the environment C The refrigerants operate at a low or negative pressure D It has high global warming potential (GWP) Question 7: Which of the following causes depletion of the ozone layer? A CO2 B CFCs C Propane D Ammonia Question 8: What statement is true regarding the purchase of RECs?
A RECs decrease the quantity of energy a building owner must purchase from utility companies B RECs will increase the amount of onsite renewable energy a building generates C Purchasing RECs will help a project earn credit for Green Power D RECs decrease a building's energy demand Question 9: What credit category is given the greatest weighting? A Energy and Atmosphere B Sustainable Sites C Water Efficiency D Materials and Resources Question 10: Energy efficiency is defined as: A The use of technology that requires less energy to perform the same function as a conventional item B Any strategy that reduces resource use 20% from a baseline comparison C Any strategy that reduces resource use 10% or more from a baseline comparison D The replacement of any older building product with a newer building product Question 11: In an existing building, with what can a project team replace CFCs and still earn LEED certification? A Only natural refrigerants B Only HFCs or natural refrigerants C Any non CFC-based refrigerant D Natural ventilation
Question 12: What are differences between Hydrocarbons (HCs) and Hydrochlorofluorocarbons (HCFCs)? A HCs are environmentally benign to the atmosphere while HCFCs are not B HCs are an ideal replacement for CFCs while HCFCs are not C HCs can be used as refrigerants in new buildings while LEED requires zero use of HCFC-based refrigerants in new base building elements D HCs have a lower global warming potential (GWP) than HCFCs Question 13: What types of energy sources generate the least air and water pollution? A Biofuel B Oil C Wind D Natural gas E Coal Question 14: What leaves the largest carbon footprint in the typical office building? A Transportation B Materials C Water D Building systems Question 15: What does the Montreal Protocol ban? A Coal-fired power plants
B CFCs C Mercury in light bulbs D Incandescent light bulbs Question 16: Can ozone have negative environmental effects? A Yes, depending on where ozone is located B Yes, when located in the upper atmosphere C No, ozone is essential to life on earth D No, ozone is located in the upper atmosphere Question 17: The leakage rate is the speed at which an appliance loses refrigerant, measured between refrigerant charges or over _____, whichever is shorter. A 24 months B 6 months C 18 months D 12 months Question 18: Purchased power must meet which certification's standards to qualify as off-site renewable sources of energy for LEED projects? A Green Label Plus B Green Seal C Green-e D Green Label
Question 19: How can a LEED project earn credit for Green Power? A By selecting a Green-e certified power provider B By purchasing any renewable energy source C By installing solar panels D By purchasing biofuel based power Question 20: An office project design in a cooler climate will include natural ventilation. What standards will help the project team earn credits for this design? A ASHRAE 62.1-2007 B SMACNA C ASHRAE 55-2004 D Green-e E SCAQMD Question 21: What statement is true regarding halons? A Halons absorb heat from a reservoir at low temperatures and reject heat at higher temperatures B Halons are commonly used in centrifugal chillers C Halons are a type of hydrocarbon D Halons are substances that deplete the stratospheric ozone layer Question 22: Which refrigerants are considered environmentally benign? A Halons
B Propane C Hydrofluorocarbons D Hydrocarbons Question 23: What is building commissioning? A A process to remove volatile organic compounds (VOCs) from a building B A systematic process of assuring that a building and its systems perform in accordance with the design intent and the owner's requirements C The process of adapting old structures for purposes other than those initially intended D When an existing building undergoes the commissioning process to discover if improvements or changes should be made to improve the building Question 24: Which of the following has the greatest direct impact on global warming? A Building orientation B Chillers' operating efficiency C SRI of a building's roof D Use of natural refrigerants Question 25: On a project with older existing HVAC&R system that uses CFCs what can the project team do to earn LEED certification? A The project can be certified with the existing system as-is B Replace the HVAC&R system with one that does not use CFCs C Maintain the equipment properly over the building's lifetime D Seal any leaks in the existing system
Question 26: Ozone-friendly refrigerants differ from ozone-damaging refrigerants in what way? A Ozone-friendly refrigerants are more energy efficient B Ozone-friendly refrigerants may cause more global warming C Ozone-friendly refrigerants are global warming neutral D Ozone-friendly refrigerants may cause less global warming Question 27: What environmental issue is associated with refrigerants used in HVAC&R systems? A Increased use of fossil fuels B Damage to the Earth's ozone layer C Increased air pollution D Pollution of water bodies Question 28: Green power refers to electricity products that include significant proportions of electricity generated from energy resources that are: A Derived from the sun B Renewable C Locally harvested D Green Seal Certified Question 29: What causes depletion of the ozone layer? A Biofuel B HCFCs
C Landfill gas D Hydrogen power Question 30: On a project with an older existing HVAC&R system that uses CFCs, what can the project team do to earn LEED certification? A Make a phase out plan for the removal of the CFC based refrigerants B Eliminate all refrigerant leaks C Get a state exemption for the HVAC&R system D Recharge the equipment with CFCs Question 31: Which of the following is a natural refrigerant? A HCFC B CFC C CO2 D HFC Question 32: What should be done to minimize a building's impact on ozone depletion? A Install a green roof B Reduce heat islands C Zero use of CFCs D Use halons in fire suppression systems
Question 33: What does global warming potential (GWP) measure? A Harm done by refrigerants to the ozone layer B Lifespan of refrigerants C Chemical contribution to global warming D Embodied energy of a refrigerant Question 34: What must a project team do prior to phasing out CFC-based refrigerants? A Select a replacement refrigerant with a long atmospheric lifetime B Select a replacement refrigerant with a nonzero Ozone Depletion Potential (ODP) C Vent any remaining CFCs for disposal to the air prior to decommissioning any equipment D Reduce the annual leakage of CFCs to 5% or less using EPA Clean Air Act procedures Question 35: The practice of placing windows or other transparent media and reflective surfaces in such a way that during the day natural light provides effective internal illumination is referred to as: A Lighting power density B Natural ventilation C Daylighting D Passive ventilation Question 36: What statement is true regarding the use of Halons? A A building that uses Halons in fire suppression systems cannot earn any LEED certification. B A building that uses Halons in fire suppression systems could not earn LEED for Existing Buildings: Operations and Maintenance certification
C A building that uses Halons in fire suppression systems must implement a 5-year phase out plan as part of the application process D A building that uses Halons in fire suppression systems can still earn LEED certification Question 37: When calculating building energy performance, what is included as process energy? A Desktop computer B Washing machine C Walkway lighting D Instant hot water heater E Elevator F High efficient HVAC unit Question 38: What project design feature would decrease energy costs in a building? A Cogeneration B Increased Ventilation with a mechanical system C Purchasing materials with low VOC content D Installing equipment that uses more kBtu Question 39: Which refrigerant has the lowest Ozone Depletion Potential (ODP)? A CFC B Halon C HFC D HCFC
Question 40: Which of the following is a type of biofuel? A Hydro B Wind C Corn oil D Solar Question 41: What must occur if a project includes a CFC phase-out plan? A The CFC-based refrigerants must be replaced with low ODP refrigerants B The project must implement green house gas emissions reporting C The CFC-based refrigerants must be replaced with HCFCs D The annual leakage of CFC-based refrigerants must be reduced to 5% or less Question 42: What organization is responsible for qualifying sources of off-site renewable energy acceptable by LEED? A Center for Resource Solutions B EPA C ASHRAE D Green-e Question 43: Which of the following refrigerants are banned or are scheduled to be banned under the Montreal Protocol? A Isopentane
B CFCs C HFCs D HCFCs Question 44: Which of the following causes depletion of the ozone layer? A Halons B Heat islands C Solar radiation D Mercury Question 45: The selection of a less efficient refrigerant for HVAC&R systems can result in an increase in what types of emissions? A Radon B VOCs C CFCs D NH3 E CO2 Question 46: What type of building system might use halons? A Electrical B Irrigation C Fire suppression D Plumbing
Question 47: In a state with a closed electricity market, how can off-site green power be purchased? A Enroll in a Green-e renewable power program from the utility provider B Through an ENERGY STAR approved utility provider C From a USGBC approved provider D Have certified wood scraps delivered onsite for burning Question 48: A project building in a sunny location has photovoltaic cells that generate part of the building's electricity. What is true about this project? A The project will need to purchase Renewable Energy Credits (RECs) equal to the amount of onsite renewable energy generated B The project's annual energy costs from the utility provider will be lower than they would be if the building did not have the photovoltaic system C The project's on-site energy is Green-e certified D The project will receive RECs from the utility provider Question 49: Which of the following is NOT an example of on-site generated renewable energy? A Wind B REC C Biofuel-based electrical system D Solar Question 50: What standards would be used for the Energy and Atmosphere category? A ASHRAE 90.1-2007
B ASHRAE 55-2004 C ASHRAE 62.1-2007 D EPAct 1992 Question 51: In a new building how much CFC-based refrigerant can be used? A 5% of the total refrigerants B 5% of the total refrigerants, as long as they are not used in fire suppression systems C None D 2% of the total refrigerants Question 52: Why do natural refrigerants have greater global warming potential than refrigerants that can damage the ozone layer? A They require water use B They are less efficient C They have higher leakage rates D They produce more sulfur dioxide in the refrigeration process Question 53: LEED buildings use what percent less energy than the national average? A 26% B 18% C 20% D 24%
Question 54: What organization publishes Ozone Depletion and Global Warming Potential scores? A United Nations B Montreal Protocol C USGBC D World Meteorological Organization Question 55: How is lighting power density determined? A By measuring the installed lighting power per unit area B By conducting energy modeling using special software C By calculating the energy consumption divided by the square feet in a building D By submetering a building's energy use Question 56: Reduced emissions are a benefit of purchasing: A Recycled water B Materials with high SRI C RECs D Certified wood Question 57: What is Global Warming Potential as it relates to refrigerants? A The efficiency of a refrigerant B The potential for a single molecule of the refrigerant to destroy the ozone layer
C A measurement of how much effect the given refrigerant will have on global warming in relation to carbon dioxide. D The speed at which an appliance loses its refrigerant Question 58: What are the environmental benefits of cogeneration? A Reduced greenhouse gas emissions B Recharging of aquifers C Reduced erosion and sedimentation D Reduced wastewater generation E Reduced air pollution Question 59: ASHRAE standards are used in all of the following LEED categories except: A Materials and Resources B Indoor Environmental Quality C Energy and Atmosphere D Sustainable Sites Question 60: Installing photovoltaic cells on a building's rooftop will help with what green building area? A Fundamental Refrigerant Management B Recycled Materials C Green Power D Onsite Renewable Energy
Question 61: Biomass is what type of material? A Fly-ash B Landfill gas C Animal waste D Plant material Question 62: What is the function of the ozone layer? A Protects the earth from solar wind B Prevents smog creation C Absorbs ultraviolet light D Keeps the earth's atmosphere warm Question 63: Which of the following have helped reduce stratospheric ozone depletion? A Replacing HFC-based refrigerants with HCFC-based refrigerants in existing equipment B Implementing a phase-out of CFC-based refrigerants in existing equipment C Not using CFC-based refrigerants in new equipment D Installing halon-based fire suppression systems Question 64: What types of systems are not acceptable by LEED as sources of onsite renewable energy? A Low-impact hydroelectric power systems B High-impact hydroelectric power systems
C Biomass D Wind Question 65: What statement is true regarding the use of ammonia (NH3) as a refrigerant? A The use of NH3 as a refrigerant can result in more climate change compared to HCFCs B NH3 is a type of hydrocarbon (HC) C NH3 is more likely to leak out of equipment compared to HFCs D HCFC has a lower ozone depletion potential (ODP) compared to NH3 Question 66: What can be used to identify under-performing buildings and verify efficiency improvements? A ENERGY STAR Portfolio Manager B ENERGY STAR Target Finder C Building Research Establishment's Environmental Assessment Method D LEED Volume Program Question 67: In cooler climates how can a new building be designed to use no refrigerants? A The building could have a CFC phase-out plan in place B The building could be cooled with natural refrigerants such as propane or ammonia C The building could use natural ventilation D The building could use halons for cooling
Question 68: How is ozone created? A Transportation emissions B Emissions from incinerators C Emissions from factories D Sunlight-driven chemical reaction between molecules Question 69: What types of energy are not fossil fuels? A Nuclear B Coal C Oil D Biofuel E Natural gas Question 70: What are MERV ratings used for? A Determining the quantity of recycled content in a material B Measuring the effectiveness of a sustainable purchasing policy C Comparing the VOC content of paints and sealers D Comparing the efficiency of air filters Question 71: What does not meet LEED requirements for minimizing the negative impacts of refrigerants on the environment? A Selecting refrigerants with zero or low ozone depletion potential (ODP) and minimal global warming potential (GWP).
B Reducing the annual leakage rate of refrigerants to 10% or less C Designing a building with natural ventilation D Designing a building that does not use chemical refrigerants Question 72: Which of the following refrigerants has the least global warming potential? A CFC-11 B HFC-23 C HCFC-123 D CFC-12 Question 73: What environmental issue is associated with refrigerants used in HVAC&R systems? A Increasing greenhouse gas emissions B Groundwater contamination C Soil contamination D Increased CO2 indoors Question 74: The type of refrigerant selected for a building will impact what LEED credit categories? A Indoor Environmental Quality B Sustainable Sites C Energy and Atmosphere D Materials and Resources E Water Efficiency
Question 75: What implies a direct impact on global warming? A Refrigerant charge B Global warming potential C Ozone depleting potential D Service life Question 76: What does a REC represent? A The amount of energy an electricity provider purchases from renewable sources B The environmental, social, and other positive attributes of power generated by renewable resources C The amount of energy purchased from a Green-e supplier D The quantity of fossil fuels avoided by purchasing renewable energy, expressed in tons Question 77: When purchasing RECs, what is the project purchasing? A Carbon offsets B Positive environmental attributes of off-site renewable energy C Electricity D On-site renewable energy Question 78: What LEED category would the Green-e standard be used in? A Materials and Resources B Sustainable Sites
C Indoor Environmental Quality D Energy and Atmosphere Question 79: On a project with an older, existing HVAC&R system that uses CFCs, what can the project team do to earn LEED certification? A Purchase carbon credits B Replace the CFCs with natural refrigerants C Purchase Renewable Energy Certificates to offset the CFC use D Replace the CFCs with Halons Question 80: What environmental issue is associated with the burning of fossil fuels? A Release of carbon dioxide B Sedimentation of water supplies C Reduction of water from aquifers D Interference with migratory birds Question 81: ASHRAE 90.1-2007 is used for which of the following project areas? A Determining how efficient a refrigerant is B Measuring a project's exterior lighting power density C Measuring the quantity of stormwater runoff for the project boundary D Determining the baseline water use reduction of a project
Question 82: What is NOT a natural refrigerant? A HFC B CO2 C NH3 D HC Question 83: What is the environmental benefit of selecting something that is Green-e certified? A Reduced CO2 emissions from fossil fuels because of greener and cleaner electricity B Better indoor air quality due to lower VOC content in carpets C Lower impact on natural resources because of better logging practices D Less smog from automobile pollution because of more efficient cars Question 84: For LEED, if a project has an existing CFC-based refrigeration system and it is not economically feasible to replace the system, what maximum annual leakage of the existing system is allowed? A 0% B 1% C 5% D 3% Question 85: What is the root cause of global climate change? A Greenhouse gases B The use of halons
C Topsoil loss D Ozone depletion Question 86: An existing office building has a 20-year old chiller that uses CFC-11. An owner is considering a major renovation of the building and applying for LEED for New Construction certification. What statement is true about the project's ability to earn LEED certification? A The owner will not be able to achieve a Platinum level certification B The owner can implement a phase-out plan to earn LEED certification C The owner must replace the chiller to earn LEED certification D The owner can leave the existing system in place if the annual leakage is reduced to 10% or less Question 87: What year does the Montreal Protocol finally phase out HCFCs? A 2030 B 1995 C 2010 D 2020 Question 88: What standard helps businesses and households compare and select clean renewable energy options? A Green Label B Green-e C Green Score D Green Seal
Question 89: Section 608 of the EPA Clean Air Act established regulations that helped with what issue? A CO2 levels inside buildings B Smog C Humidity from heat islands D Using and recycling ozone-depleting compounds Question 90: What refrigerant has the greatest ozone depletion potential (ODP)? A CO2 B CFC-11 C HCFC-22 D HFC-23 Question 91: What gives the ozone layer legal protection? A Kyoto Protocol B Montreal Protocol C ASHRAE Standards D US DOE Question 92: What is an example of climate change? A A five-year drought B An unexpected snowstorm in Phoenix C A significant two-year increase in wind speeds
D A century-long increase in temperature by 1 degree Question 93: What is a biofuel-based system? A A system that runs using wave power B A system that runs on power from the sun C A system that runs on gas D A system that runs on organic material Question 94: How does calculating a project's Green Power compare to calculating a project's Onsite Renewable Energy? A Green Power is based on the building's Btus per square foot while Onsite Renewable Energy is based on the building's kWh per square foot per year B Green Power is based on the percent of the building's energy consumption while Onsite Renewable Energy is based on the percent of the building's annual energy cost C Green Power is based on the building's annual energy cost while Onsite Renewable Energy is based on the percent of the building's energy consumption D The calculations are the same Question 95: What has a long atmospheric life that causes harm to the ozone layer? A HCFCs B NH3 C CFCs D HCs Question 96: LEED addresses ozone depletion by setting requirements on the following: A Refrigerants B Green power use
C Automobile use reduction D Fire suppression system chemicals Question 97: What is the name of the cancer-causing radioactive gas that can be found in the ground, groundwater, or building materials? A VOC B Urea-formaldehyde C NH3 D Radon Question 98: What is a building's annual energy cost used to calculate? A Onsite Renewable Energy B Enhanced Commissioning C Green Power D Measurement and Verification Question 99: What statement is true about RECs? A RECs are reduced from utility bills B RECs provide electricity C RECs depreciate in value D RECs are tradable commodities Question 100: What statement is true about RECs? A RECs are sold separately from electricity
B RECs are sold within a 500 mile radius of the project C RECs may only be sold in locations approved by Green-e D RECs can be sold back to an electricity provider through net-metering Question 101: What qualifies for Green Power credit for LEED projects? A Renewable energy certificates B On-site renewable energy C Energy reductions D Using no refrigerants Question 102: What statement is true regarding CFCs? A CFCs are no longer used anywhere B CFCs are not addressed in the US EPA Clean Air Act C No ideal alternative for CFCs has been developed D CFCs are no longer used in developed nations Question 103: What is a drawback of using a biofuel-based energy system? A The lack of regulatory oversight B Fossil fuels must still be used to produce biofuels C These systems are not acceptable for LEED credits D Production is unreliable or inconsistent Question 104: What statement is true regarding the Clean Air Act? A The Sustainable Sites category references the Clean Air Act in regards to airborne dust generation from construction activities
B The Clean Air Act provides recommendations on carbon emissions for all new commercial buildings C No production and no importing of any HCFCs will be allowed after 2030 under the Clean Air Act D The Clean Air Act defines what constitutes a low-emitting or fuel-efficient vehicle Question 105: What is lighting power density measured in? A Footcandles per floor area B Installed lighting power per unit area C Number of luminaires per unit area D The quantity of light trespass on adjacent sites, measured in watts Question 106: Why should building commissioning be performed? A Sustainable purchasing programs require it B Operating costs can be lowered and energy use can be reduced C An innovation credit can be earned D It is required by local code prior to earning a Certificate of Occupancy Question 107: Which statement is true about CFCs in the United States? A CFC production in the United States will be phased out by 2030 B CFC production in the United States ended in 1995 C CFC production in the United States will be phased out by 2010 D CFCs are no longer used in the United States Question 108: What statement is true regarding Hydrofluorocarbons (HFCs)? A Many HFCs have a significant global warming potential
B HFCs are scheduled to be banned under the Montreal Protocol C The HFC refrigerant group includes NH3, CO2, and propane D HFCs have high ozone depletion potential Question 109: What is the most common way to meet the requirements of off-site renewable energy? A Installing a rooftop photovoltaic array B Directly purchasing green power from local utility companies C Purchasing RECs D Obtaining energy from a geothermal system Question 110: What statement is true regarding HydroChloroFluoroCarbons (HCFCs)? A HCFCs have a low ozone depletion potential compared to CFCs B Zero use of HCFCs is required to achieve Fundamental Refrigerant Management C HCFCs are a type of natural refrigerant D HCFCs are the refrigerants with the least direct impact on the environment Question 111: Which projects would not be eligible for LEED certification? A An existing building project that reduces CFC-based refrigerants by 95% prior to submitting the LEED application and will continue to use this CFC system for another 10 years B A new building project that uses hydrocarbons (HCs) as refrigerants C A new building project that uses CFC-based refrigerants D A new building project that uses no refrigerants E An existing building project that phases out the use of CFC-based refrigerants no later than 5 years after the project is completed Question 112: What environmental benefit does green power have?
A Avoiding electricity blackouts B Reduced environmental regulation C Stability of electrical prices D Emission reductions Question 113: What process uses heat recovery to capture heat from the process of generating electricity and then turns the recovered heat into thermal energy that can be used to heat a building? A Cogeneration B Commissioning C Tertiary treatment D Evopotranspiration Question 114: When calculating building energy performance what is included as non-process energy? A Parking garage ventilation B Refrigerator C Electric kitchen stove D Parking garage lighting E Fans for increased ventilation F Escalator Question 115: Which of the following is a type of natural refrigerant? A Passive refrigerants B Halons C HydroCarbons (HC) D Geothermal energy
Question 116: Which of the following is not an alternative LEED recommends for reducing stratospheric ozone depletion? A Selecting refrigerants that have a long atmospheric lifetimes B Designing a building to use natural ventilation C Using natural refrigerants D Selecting refrigerants with lower ODP and GWP Question 117: What variables measure a refrigerant's impact on the environment? A Lifecycle potential B Ozone depletion potential C Global warming potential D Greenhouse gas lifetime E Global warming period Question 118: What statement is true regarding ChloroFluoroCarbons (CFCs) and HydroChloroFluoroCarbons (HCFCs)? A CFCs have a greater global warming potential (GWP) than HCFCs B The ozone depletion potential (ODP) of HCFCs and CFCs is about the same C LEED encourages replacing CFC or halon-based fire suppression systems with HCFCs D CFCs are banned under the Montreal Protocol while HCFCs are not Question 119: How long can a project team take after project completion to phase-out any CFC-based refrigerants? A 4 years B 5 years C 2 years
D 3 years Question 120: For LEED credit a fire suppression system should not contain: A Water B CO2 C Halons D HCFCs E CFCs Question 121: Approximately 50% of chillers in existing buildings use what refrigerant? A NH3 B HCFC-22 C HFC-23 D CFC-11 Question 122: Which of the following is NOT a type of biofuel? A Wood chips B Soybean oil C Geothermal D Vegetable oil Question 123: What are the best design strategies for improving indoor air quality during operations and maintenance of a building? A Use soft surfaces on the interiors
B Use natural refrigerants C Use air filters with high minimum efficiency reporting value (MERV) ratings D Increase the ventilation in the building E Orient the building for optimal sun exposure

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Leed green associate iv. project systems and energy impacts question

  • 1.
    LEED Green AssociateIV. Project Systems and Energy Impacts Question 1: What transfers heat during the mechanical cooling process? A Off-gassing B Biomass C Refrigerants D Feedback loop Question 2: What project areas would you find CFCs used in? A Radiant flooring B Centrifugal chillers C Refrigeration D Hot water heating Question 3: With regards to refrigerants what is a natural conflict between the prevention of ozone depletion and global warming? A Refrigerants contain ozone layer gases B Refrigerants that are neutral to the ozone layer are less efficient C Refrigerants that deplete the ozone layer are less efficient D Refrigerants contain global warming gases Question 4: Developing nations banned chlorofluorocarbons under the: A Executive Order 95-231 B Montreal Protocol
  • 2.
    C EPA CleanAir Act D Kyoto Treaty Question 5: The Green Power credit gives preference to electricity products that: A Are greenhouse gas neutral B Come from grid-source, renewable energy technologies on a net zero pollution basis C Come from hydroelectric sources D Use cogeneration Question 6: What statement is true regarding a passive cooling system? A It does not use any refrigerants B It has a high indirect impact on the environment C The refrigerants operate at a low or negative pressure D It has high global warming potential (GWP) Question 7: Which of the following causes depletion of the ozone layer? A CO2 B CFCs C Propane D Ammonia Question 8: What statement is true regarding the purchase of RECs?
  • 3.
    A RECs decreasethe quantity of energy a building owner must purchase from utility companies B RECs will increase the amount of onsite renewable energy a building generates C Purchasing RECs will help a project earn credit for Green Power D RECs decrease a building's energy demand Question 9: What credit category is given the greatest weighting? A Energy and Atmosphere B Sustainable Sites C Water Efficiency D Materials and Resources Question 10: Energy efficiency is defined as: A The use of technology that requires less energy to perform the same function as a conventional item B Any strategy that reduces resource use 20% from a baseline comparison C Any strategy that reduces resource use 10% or more from a baseline comparison D The replacement of any older building product with a newer building product Question 11: In an existing building, with what can a project team replace CFCs and still earn LEED certification? A Only natural refrigerants B Only HFCs or natural refrigerants C Any non CFC-based refrigerant D Natural ventilation
  • 4.
    Question 12: What aredifferences between Hydrocarbons (HCs) and Hydrochlorofluorocarbons (HCFCs)? A HCs are environmentally benign to the atmosphere while HCFCs are not B HCs are an ideal replacement for CFCs while HCFCs are not C HCs can be used as refrigerants in new buildings while LEED requires zero use of HCFC-based refrigerants in new base building elements D HCs have a lower global warming potential (GWP) than HCFCs Question 13: What types of energy sources generate the least air and water pollution? A Biofuel B Oil C Wind D Natural gas E Coal Question 14: What leaves the largest carbon footprint in the typical office building? A Transportation B Materials C Water D Building systems Question 15: What does the Montreal Protocol ban? A Coal-fired power plants
  • 5.
    B CFCs C Mercuryin light bulbs D Incandescent light bulbs Question 16: Can ozone have negative environmental effects? A Yes, depending on where ozone is located B Yes, when located in the upper atmosphere C No, ozone is essential to life on earth D No, ozone is located in the upper atmosphere Question 17: The leakage rate is the speed at which an appliance loses refrigerant, measured between refrigerant charges or over _____, whichever is shorter. A 24 months B 6 months C 18 months D 12 months Question 18: Purchased power must meet which certification's standards to qualify as off-site renewable sources of energy for LEED projects? A Green Label Plus B Green Seal C Green-e D Green Label
  • 6.
    Question 19: How cana LEED project earn credit for Green Power? A By selecting a Green-e certified power provider B By purchasing any renewable energy source C By installing solar panels D By purchasing biofuel based power Question 20: An office project design in a cooler climate will include natural ventilation. What standards will help the project team earn credits for this design? A ASHRAE 62.1-2007 B SMACNA C ASHRAE 55-2004 D Green-e E SCAQMD Question 21: What statement is true regarding halons? A Halons absorb heat from a reservoir at low temperatures and reject heat at higher temperatures B Halons are commonly used in centrifugal chillers C Halons are a type of hydrocarbon D Halons are substances that deplete the stratospheric ozone layer Question 22: Which refrigerants are considered environmentally benign? A Halons
  • 7.
    B Propane C Hydrofluorocarbons DHydrocarbons Question 23: What is building commissioning? A A process to remove volatile organic compounds (VOCs) from a building B A systematic process of assuring that a building and its systems perform in accordance with the design intent and the owner's requirements C The process of adapting old structures for purposes other than those initially intended D When an existing building undergoes the commissioning process to discover if improvements or changes should be made to improve the building Question 24: Which of the following has the greatest direct impact on global warming? A Building orientation B Chillers' operating efficiency C SRI of a building's roof D Use of natural refrigerants Question 25: On a project with older existing HVAC&R system that uses CFCs what can the project team do to earn LEED certification? A The project can be certified with the existing system as-is B Replace the HVAC&R system with one that does not use CFCs C Maintain the equipment properly over the building's lifetime D Seal any leaks in the existing system
  • 8.
    Question 26: Ozone-friendly refrigerantsdiffer from ozone-damaging refrigerants in what way? A Ozone-friendly refrigerants are more energy efficient B Ozone-friendly refrigerants may cause more global warming C Ozone-friendly refrigerants are global warming neutral D Ozone-friendly refrigerants may cause less global warming Question 27: What environmental issue is associated with refrigerants used in HVAC&R systems? A Increased use of fossil fuels B Damage to the Earth's ozone layer C Increased air pollution D Pollution of water bodies Question 28: Green power refers to electricity products that include significant proportions of electricity generated from energy resources that are: A Derived from the sun B Renewable C Locally harvested D Green Seal Certified Question 29: What causes depletion of the ozone layer? A Biofuel B HCFCs
  • 9.
    C Landfill gas DHydrogen power Question 30: On a project with an older existing HVAC&R system that uses CFCs, what can the project team do to earn LEED certification? A Make a phase out plan for the removal of the CFC based refrigerants B Eliminate all refrigerant leaks C Get a state exemption for the HVAC&R system D Recharge the equipment with CFCs Question 31: Which of the following is a natural refrigerant? A HCFC B CFC C CO2 D HFC Question 32: What should be done to minimize a building's impact on ozone depletion? A Install a green roof B Reduce heat islands C Zero use of CFCs D Use halons in fire suppression systems
  • 10.
    Question 33: What doesglobal warming potential (GWP) measure? A Harm done by refrigerants to the ozone layer B Lifespan of refrigerants C Chemical contribution to global warming D Embodied energy of a refrigerant Question 34: What must a project team do prior to phasing out CFC-based refrigerants? A Select a replacement refrigerant with a long atmospheric lifetime B Select a replacement refrigerant with a nonzero Ozone Depletion Potential (ODP) C Vent any remaining CFCs for disposal to the air prior to decommissioning any equipment D Reduce the annual leakage of CFCs to 5% or less using EPA Clean Air Act procedures Question 35: The practice of placing windows or other transparent media and reflective surfaces in such a way that during the day natural light provides effective internal illumination is referred to as: A Lighting power density B Natural ventilation C Daylighting D Passive ventilation Question 36: What statement is true regarding the use of Halons? A A building that uses Halons in fire suppression systems cannot earn any LEED certification. B A building that uses Halons in fire suppression systems could not earn LEED for Existing Buildings: Operations and Maintenance certification
  • 11.
    C A buildingthat uses Halons in fire suppression systems must implement a 5-year phase out plan as part of the application process D A building that uses Halons in fire suppression systems can still earn LEED certification Question 37: When calculating building energy performance, what is included as process energy? A Desktop computer B Washing machine C Walkway lighting D Instant hot water heater E Elevator F High efficient HVAC unit Question 38: What project design feature would decrease energy costs in a building? A Cogeneration B Increased Ventilation with a mechanical system C Purchasing materials with low VOC content D Installing equipment that uses more kBtu Question 39: Which refrigerant has the lowest Ozone Depletion Potential (ODP)? A CFC B Halon C HFC D HCFC
  • 12.
    Question 40: Which ofthe following is a type of biofuel? A Hydro B Wind C Corn oil D Solar Question 41: What must occur if a project includes a CFC phase-out plan? A The CFC-based refrigerants must be replaced with low ODP refrigerants B The project must implement green house gas emissions reporting C The CFC-based refrigerants must be replaced with HCFCs D The annual leakage of CFC-based refrigerants must be reduced to 5% or less Question 42: What organization is responsible for qualifying sources of off-site renewable energy acceptable by LEED? A Center for Resource Solutions B EPA C ASHRAE D Green-e Question 43: Which of the following refrigerants are banned or are scheduled to be banned under the Montreal Protocol? A Isopentane
  • 13.
    B CFCs C HFCs DHCFCs Question 44: Which of the following causes depletion of the ozone layer? A Halons B Heat islands C Solar radiation D Mercury Question 45: The selection of a less efficient refrigerant for HVAC&R systems can result in an increase in what types of emissions? A Radon B VOCs C CFCs D NH3 E CO2 Question 46: What type of building system might use halons? A Electrical B Irrigation C Fire suppression D Plumbing
  • 14.
    Question 47: In astate with a closed electricity market, how can off-site green power be purchased? A Enroll in a Green-e renewable power program from the utility provider B Through an ENERGY STAR approved utility provider C From a USGBC approved provider D Have certified wood scraps delivered onsite for burning Question 48: A project building in a sunny location has photovoltaic cells that generate part of the building's electricity. What is true about this project? A The project will need to purchase Renewable Energy Credits (RECs) equal to the amount of onsite renewable energy generated B The project's annual energy costs from the utility provider will be lower than they would be if the building did not have the photovoltaic system C The project's on-site energy is Green-e certified D The project will receive RECs from the utility provider Question 49: Which of the following is NOT an example of on-site generated renewable energy? A Wind B REC C Biofuel-based electrical system D Solar Question 50: What standards would be used for the Energy and Atmosphere category? A ASHRAE 90.1-2007
  • 15.
    B ASHRAE 55-2004 CASHRAE 62.1-2007 D EPAct 1992 Question 51: In a new building how much CFC-based refrigerant can be used? A 5% of the total refrigerants B 5% of the total refrigerants, as long as they are not used in fire suppression systems C None D 2% of the total refrigerants Question 52: Why do natural refrigerants have greater global warming potential than refrigerants that can damage the ozone layer? A They require water use B They are less efficient C They have higher leakage rates D They produce more sulfur dioxide in the refrigeration process Question 53: LEED buildings use what percent less energy than the national average? A 26% B 18% C 20% D 24%
  • 16.
    Question 54: What organizationpublishes Ozone Depletion and Global Warming Potential scores? A United Nations B Montreal Protocol C USGBC D World Meteorological Organization Question 55: How is lighting power density determined? A By measuring the installed lighting power per unit area B By conducting energy modeling using special software C By calculating the energy consumption divided by the square feet in a building D By submetering a building's energy use Question 56: Reduced emissions are a benefit of purchasing: A Recycled water B Materials with high SRI C RECs D Certified wood Question 57: What is Global Warming Potential as it relates to refrigerants? A The efficiency of a refrigerant B The potential for a single molecule of the refrigerant to destroy the ozone layer
  • 17.
    C A measurementof how much effect the given refrigerant will have on global warming in relation to carbon dioxide. D The speed at which an appliance loses its refrigerant Question 58: What are the environmental benefits of cogeneration? A Reduced greenhouse gas emissions B Recharging of aquifers C Reduced erosion and sedimentation D Reduced wastewater generation E Reduced air pollution Question 59: ASHRAE standards are used in all of the following LEED categories except: A Materials and Resources B Indoor Environmental Quality C Energy and Atmosphere D Sustainable Sites Question 60: Installing photovoltaic cells on a building's rooftop will help with what green building area? A Fundamental Refrigerant Management B Recycled Materials C Green Power D Onsite Renewable Energy
  • 18.
    Question 61: Biomass iswhat type of material? A Fly-ash B Landfill gas C Animal waste D Plant material Question 62: What is the function of the ozone layer? A Protects the earth from solar wind B Prevents smog creation C Absorbs ultraviolet light D Keeps the earth's atmosphere warm Question 63: Which of the following have helped reduce stratospheric ozone depletion? A Replacing HFC-based refrigerants with HCFC-based refrigerants in existing equipment B Implementing a phase-out of CFC-based refrigerants in existing equipment C Not using CFC-based refrigerants in new equipment D Installing halon-based fire suppression systems Question 64: What types of systems are not acceptable by LEED as sources of onsite renewable energy? A Low-impact hydroelectric power systems B High-impact hydroelectric power systems
  • 19.
    C Biomass D Wind Question65: What statement is true regarding the use of ammonia (NH3) as a refrigerant? A The use of NH3 as a refrigerant can result in more climate change compared to HCFCs B NH3 is a type of hydrocarbon (HC) C NH3 is more likely to leak out of equipment compared to HFCs D HCFC has a lower ozone depletion potential (ODP) compared to NH3 Question 66: What can be used to identify under-performing buildings and verify efficiency improvements? A ENERGY STAR Portfolio Manager B ENERGY STAR Target Finder C Building Research Establishment's Environmental Assessment Method D LEED Volume Program Question 67: In cooler climates how can a new building be designed to use no refrigerants? A The building could have a CFC phase-out plan in place B The building could be cooled with natural refrigerants such as propane or ammonia C The building could use natural ventilation D The building could use halons for cooling
  • 20.
    Question 68: How isozone created? A Transportation emissions B Emissions from incinerators C Emissions from factories D Sunlight-driven chemical reaction between molecules Question 69: What types of energy are not fossil fuels? A Nuclear B Coal C Oil D Biofuel E Natural gas Question 70: What are MERV ratings used for? A Determining the quantity of recycled content in a material B Measuring the effectiveness of a sustainable purchasing policy C Comparing the VOC content of paints and sealers D Comparing the efficiency of air filters Question 71: What does not meet LEED requirements for minimizing the negative impacts of refrigerants on the environment? A Selecting refrigerants with zero or low ozone depletion potential (ODP) and minimal global warming potential (GWP).
  • 21.
    B Reducing theannual leakage rate of refrigerants to 10% or less C Designing a building with natural ventilation D Designing a building that does not use chemical refrigerants Question 72: Which of the following refrigerants has the least global warming potential? A CFC-11 B HFC-23 C HCFC-123 D CFC-12 Question 73: What environmental issue is associated with refrigerants used in HVAC&R systems? A Increasing greenhouse gas emissions B Groundwater contamination C Soil contamination D Increased CO2 indoors Question 74: The type of refrigerant selected for a building will impact what LEED credit categories? A Indoor Environmental Quality B Sustainable Sites C Energy and Atmosphere D Materials and Resources E Water Efficiency
  • 22.
    Question 75: What impliesa direct impact on global warming? A Refrigerant charge B Global warming potential C Ozone depleting potential D Service life Question 76: What does a REC represent? A The amount of energy an electricity provider purchases from renewable sources B The environmental, social, and other positive attributes of power generated by renewable resources C The amount of energy purchased from a Green-e supplier D The quantity of fossil fuels avoided by purchasing renewable energy, expressed in tons Question 77: When purchasing RECs, what is the project purchasing? A Carbon offsets B Positive environmental attributes of off-site renewable energy C Electricity D On-site renewable energy Question 78: What LEED category would the Green-e standard be used in? A Materials and Resources B Sustainable Sites
  • 23.
    C Indoor EnvironmentalQuality D Energy and Atmosphere Question 79: On a project with an older, existing HVAC&R system that uses CFCs, what can the project team do to earn LEED certification? A Purchase carbon credits B Replace the CFCs with natural refrigerants C Purchase Renewable Energy Certificates to offset the CFC use D Replace the CFCs with Halons Question 80: What environmental issue is associated with the burning of fossil fuels? A Release of carbon dioxide B Sedimentation of water supplies C Reduction of water from aquifers D Interference with migratory birds Question 81: ASHRAE 90.1-2007 is used for which of the following project areas? A Determining how efficient a refrigerant is B Measuring a project's exterior lighting power density C Measuring the quantity of stormwater runoff for the project boundary D Determining the baseline water use reduction of a project
  • 24.
    Question 82: What isNOT a natural refrigerant? A HFC B CO2 C NH3 D HC Question 83: What is the environmental benefit of selecting something that is Green-e certified? A Reduced CO2 emissions from fossil fuels because of greener and cleaner electricity B Better indoor air quality due to lower VOC content in carpets C Lower impact on natural resources because of better logging practices D Less smog from automobile pollution because of more efficient cars Question 84: For LEED, if a project has an existing CFC-based refrigeration system and it is not economically feasible to replace the system, what maximum annual leakage of the existing system is allowed? A 0% B 1% C 5% D 3% Question 85: What is the root cause of global climate change? A Greenhouse gases B The use of halons
  • 25.
    C Topsoil loss DOzone depletion Question 86: An existing office building has a 20-year old chiller that uses CFC-11. An owner is considering a major renovation of the building and applying for LEED for New Construction certification. What statement is true about the project's ability to earn LEED certification? A The owner will not be able to achieve a Platinum level certification B The owner can implement a phase-out plan to earn LEED certification C The owner must replace the chiller to earn LEED certification D The owner can leave the existing system in place if the annual leakage is reduced to 10% or less Question 87: What year does the Montreal Protocol finally phase out HCFCs? A 2030 B 1995 C 2010 D 2020 Question 88: What standard helps businesses and households compare and select clean renewable energy options? A Green Label B Green-e C Green Score D Green Seal
  • 26.
    Question 89: Section 608of the EPA Clean Air Act established regulations that helped with what issue? A CO2 levels inside buildings B Smog C Humidity from heat islands D Using and recycling ozone-depleting compounds Question 90: What refrigerant has the greatest ozone depletion potential (ODP)? A CO2 B CFC-11 C HCFC-22 D HFC-23 Question 91: What gives the ozone layer legal protection? A Kyoto Protocol B Montreal Protocol C ASHRAE Standards D US DOE Question 92: What is an example of climate change? A A five-year drought B An unexpected snowstorm in Phoenix C A significant two-year increase in wind speeds
  • 27.
    D A century-longincrease in temperature by 1 degree Question 93: What is a biofuel-based system? A A system that runs using wave power B A system that runs on power from the sun C A system that runs on gas D A system that runs on organic material Question 94: How does calculating a project's Green Power compare to calculating a project's Onsite Renewable Energy? A Green Power is based on the building's Btus per square foot while Onsite Renewable Energy is based on the building's kWh per square foot per year B Green Power is based on the percent of the building's energy consumption while Onsite Renewable Energy is based on the percent of the building's annual energy cost C Green Power is based on the building's annual energy cost while Onsite Renewable Energy is based on the percent of the building's energy consumption D The calculations are the same Question 95: What has a long atmospheric life that causes harm to the ozone layer? A HCFCs B NH3 C CFCs D HCs Question 96: LEED addresses ozone depletion by setting requirements on the following: A Refrigerants B Green power use
  • 28.
    C Automobile usereduction D Fire suppression system chemicals Question 97: What is the name of the cancer-causing radioactive gas that can be found in the ground, groundwater, or building materials? A VOC B Urea-formaldehyde C NH3 D Radon Question 98: What is a building's annual energy cost used to calculate? A Onsite Renewable Energy B Enhanced Commissioning C Green Power D Measurement and Verification Question 99: What statement is true about RECs? A RECs are reduced from utility bills B RECs provide electricity C RECs depreciate in value D RECs are tradable commodities Question 100: What statement is true about RECs? A RECs are sold separately from electricity
  • 29.
    B RECs aresold within a 500 mile radius of the project C RECs may only be sold in locations approved by Green-e D RECs can be sold back to an electricity provider through net-metering Question 101: What qualifies for Green Power credit for LEED projects? A Renewable energy certificates B On-site renewable energy C Energy reductions D Using no refrigerants Question 102: What statement is true regarding CFCs? A CFCs are no longer used anywhere B CFCs are not addressed in the US EPA Clean Air Act C No ideal alternative for CFCs has been developed D CFCs are no longer used in developed nations Question 103: What is a drawback of using a biofuel-based energy system? A The lack of regulatory oversight B Fossil fuels must still be used to produce biofuels C These systems are not acceptable for LEED credits D Production is unreliable or inconsistent Question 104: What statement is true regarding the Clean Air Act? A The Sustainable Sites category references the Clean Air Act in regards to airborne dust generation from construction activities
  • 30.
    B The CleanAir Act provides recommendations on carbon emissions for all new commercial buildings C No production and no importing of any HCFCs will be allowed after 2030 under the Clean Air Act D The Clean Air Act defines what constitutes a low-emitting or fuel-efficient vehicle Question 105: What is lighting power density measured in? A Footcandles per floor area B Installed lighting power per unit area C Number of luminaires per unit area D The quantity of light trespass on adjacent sites, measured in watts Question 106: Why should building commissioning be performed? A Sustainable purchasing programs require it B Operating costs can be lowered and energy use can be reduced C An innovation credit can be earned D It is required by local code prior to earning a Certificate of Occupancy Question 107: Which statement is true about CFCs in the United States? A CFC production in the United States will be phased out by 2030 B CFC production in the United States ended in 1995 C CFC production in the United States will be phased out by 2010 D CFCs are no longer used in the United States Question 108: What statement is true regarding Hydrofluorocarbons (HFCs)? A Many HFCs have a significant global warming potential
  • 31.
    B HFCs arescheduled to be banned under the Montreal Protocol C The HFC refrigerant group includes NH3, CO2, and propane D HFCs have high ozone depletion potential Question 109: What is the most common way to meet the requirements of off-site renewable energy? A Installing a rooftop photovoltaic array B Directly purchasing green power from local utility companies C Purchasing RECs D Obtaining energy from a geothermal system Question 110: What statement is true regarding HydroChloroFluoroCarbons (HCFCs)? A HCFCs have a low ozone depletion potential compared to CFCs B Zero use of HCFCs is required to achieve Fundamental Refrigerant Management C HCFCs are a type of natural refrigerant D HCFCs are the refrigerants with the least direct impact on the environment Question 111: Which projects would not be eligible for LEED certification? A An existing building project that reduces CFC-based refrigerants by 95% prior to submitting the LEED application and will continue to use this CFC system for another 10 years B A new building project that uses hydrocarbons (HCs) as refrigerants C A new building project that uses CFC-based refrigerants D A new building project that uses no refrigerants E An existing building project that phases out the use of CFC-based refrigerants no later than 5 years after the project is completed Question 112: What environmental benefit does green power have?
  • 32.
    A Avoiding electricityblackouts B Reduced environmental regulation C Stability of electrical prices D Emission reductions Question 113: What process uses heat recovery to capture heat from the process of generating electricity and then turns the recovered heat into thermal energy that can be used to heat a building? A Cogeneration B Commissioning C Tertiary treatment D Evopotranspiration Question 114: When calculating building energy performance what is included as non-process energy? A Parking garage ventilation B Refrigerator C Electric kitchen stove D Parking garage lighting E Fans for increased ventilation F Escalator Question 115: Which of the following is a type of natural refrigerant? A Passive refrigerants B Halons C HydroCarbons (HC) D Geothermal energy
  • 33.
    Question 116: Which ofthe following is not an alternative LEED recommends for reducing stratospheric ozone depletion? A Selecting refrigerants that have a long atmospheric lifetimes B Designing a building to use natural ventilation C Using natural refrigerants D Selecting refrigerants with lower ODP and GWP Question 117: What variables measure a refrigerant's impact on the environment? A Lifecycle potential B Ozone depletion potential C Global warming potential D Greenhouse gas lifetime E Global warming period Question 118: What statement is true regarding ChloroFluoroCarbons (CFCs) and HydroChloroFluoroCarbons (HCFCs)? A CFCs have a greater global warming potential (GWP) than HCFCs B The ozone depletion potential (ODP) of HCFCs and CFCs is about the same C LEED encourages replacing CFC or halon-based fire suppression systems with HCFCs D CFCs are banned under the Montreal Protocol while HCFCs are not Question 119: How long can a project team take after project completion to phase-out any CFC-based refrigerants? A 4 years B 5 years C 2 years
  • 34.
    D 3 years Question120: For LEED credit a fire suppression system should not contain: A Water B CO2 C Halons D HCFCs E CFCs Question 121: Approximately 50% of chillers in existing buildings use what refrigerant? A NH3 B HCFC-22 C HFC-23 D CFC-11 Question 122: Which of the following is NOT a type of biofuel? A Wood chips B Soybean oil C Geothermal D Vegetable oil Question 123: What are the best design strategies for improving indoor air quality during operations and maintenance of a building? A Use soft surfaces on the interiors
  • 35.
    B Use naturalrefrigerants C Use air filters with high minimum efficiency reporting value (MERV) ratings D Increase the ventilation in the building E Orient the building for optimal sun exposure