Worksheets2022 06 LEED Green Associate Energy and Atmosphere
Total questions: 84
Worksheet time: 1hrs 3mins
What is lighting power density measured in?
Number of luminaries per unit area
Installed lighting power per unit area
Footcandles per floor area
The quantity of light trespass on adjacent sites, measured in watts
Which of the following is a measure of energy use intensity?
Energy consumed per unit of floor space
The amount of electricity a photovoltaic system can produce
The efficiency of an HVAC system
Daylighting
When calculating building energy performance, what is included as process energy?
Elevator
High efficient HVAC unit
Instant hot water heater
Walkway lighting
Which of the following building components contribute to the plug load?
Recessed lighting
Elevators
Computers
HVAC system
One way to reduce a building's energy load is to do which of the following?
Increase the size of the building
Site the building far away from adjacent buildings
Reduce a building's thermal mass
Configure the building to minimize solar gain in summer and maximize it in winter
Using passive strategies such as daylighting is an example of which of the following:
Reducing energy demand
Increasing energy efficiency
Renewable energy practice
Energy performance management
Increasing the thermal mass of a building and installing a photovoltaic system would help with:
Reducing energy demand and increasing energy efficiency
Reducing energy demand and increasing renewable energy
Increasing energy efficiency and increasing renewable energy
Decreasing energy efficiency and increasing renewable energy
In commercial buildings, on average which end use consumes the most energy?
Space heating
Lighting
Cooling
Ventilation
A project team is reviewing strategies to increase energy efficiency. Which of the following will help reduce plug-load demands?
Computer modeling
Efficient street lighting
High-performance glazing
Installing appliances that meet or exceed ENERGY STAR requirements
Why is it important to categorize spaces in LEED?
It helps with floor area calculations
Smaller spaces have lower baseline requirements
Depending on the space categorization, the credit requirements may not apply
The types of spaces are used to determine building density
Regularly occupied spaces would include which of the following:
Dorm room
Break room
Corridor
Restroom
What is an example of a space that is typically unoccupied?
Airplane hanger
Data center floor area
Gymnasium
Private office
Which of the following is a type of individual occupant space?
Hospital exam room
Auto service bay
Study carrel
Hotel front desk
A developer wants to reduce energy demand to lower the heating and cooling costs of a new building project. What strategy would help with this goal?
Purchase Renewable Energy Credits (RECs)
Increase the size of the building
Adding more windows to the building envelope
Optimize the building orientation
A building owner wants to increase efficiency to lower the operating costs of a new building project. What strategy would help with this goal?
Install all LED lighting
Provide daylighting
Install triple-paned glass windows instead of double-paned glass windows
Install a photovoltaic system on the roof
Energy efficiency is defined as:
The replacement of any older building product with a newer building product
Any strategy that reduces resource use 20% from a baseline comparison
Any strategy that reduces resource use 10% or more from a baseline comparison
The use of technology that requires less energy to perform the same function as a conventional item
A school building consumes electricity from the grid at night while contributing energy back to the grid during the day from on-site solar panels, resulting in the school having no electricity costs. This is an example of:
Carbon neutrality
Net-zero energy
Water balance
Zero waste
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?
Evapotranspiration
Commissioning
Cogeneration
Tertiary treatment
What is an environmental benefits of cogeneration?
Reduced erosion and sedimentation
Reduced air pollution
Reduced wastewater generation
Recharging of aquifers
Which of the following is the median payback period for the commissioning of new buildings?
1.5 years
2.6 years
3.9 years
4.8 years
What is the median payback period for the commissioning of existing buildings?
0.7 years
1 year
1.5 years
2.8 years
Which of the following must occur to ensure energy-efficient design is carried through to efficient performance?
Staff training
Sixty day post occupancy review after the building is certified
Yearly maintenance of all non-energy related systems
Indoor air-quality monitoring
Commissioning of a building is intended to verify the building and its systems meet which of the following:
Local building code
The owner's project requirements
HVAC specifications
Occupant preferences
Which of the following project team members is responsible for verifying and documenting that a building and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the owner's project requirements?
The mechanical engineer
The project administrator
The commissioning authority
The LEED project reviewer
During a LEED project when does commissioning take place?
Discovery phase
Pre-design phase
Schematic design phase
Substantial completion phase
Which of the following is a benefit of commissioning?
Fewer system deficiencies
Reduced construction schedules
Decreased project costs
Reduced operational training
A developer is building a medical park that will have ten buildings for doctors' offices. Which of the following is a strategy for achieving energy efficiency?
Installing a community solar garden
Building a district heating and cooling system
Siting the buildings close to each other
Purchasing carbon offsets
Which of the following project areas would retrocommissioning aid?
Operational energy efficiency
Identifying system problems prior to occupancy
Selecting environmentally preferable products
Advanced energy metering
A building owner of a new extended-stay hotel is concerned about the higher initial costs for ENERGY STAR appliances. Which of the following could help with the decision-making process?
Showing the GHG emissions that would be reduced
Reviewing the building's energy use for ways to improve efficiency
Using computer modeling to prioritize the owner's project requirements
A life cycle costing of the trade-offs between the capital and operating costs
The owner of a historic renovation project wants to achieve carbon neutrality. Which of the following design decision will help the project team achieve this?
Purchasing Renewable Energy Credits (RECs)
Using no more water than what falls on the site as precipitation
Purchasing carbon offsets
Participating in a demand response program
A data center in a rural area wants to be net-zero. Which of the following design decisions will help the project team achieve this?
Install a photovoltaic system on site
Purchase carbon offsets
Purchase Renewable Energy Credits (RECs)
Provide all occupants with electric vehicles
A home owner in a sunny climate has decided to lease a photovoltaic system instead of purchase one. Which of the following about that choice is true?
Leasing the system would allow the owner to participate in a demand response program.
Leasing the system would offset a large up-front cost.
Leasing the system would decrease the home's electricity demand.
Leasing the system would increase the home's energy efficiency.
Which of the following is a benefit of a building owner choosing to install a wind turbine on site to reduce the building's use of grid-source nonrenewable energy?
Reduced greenhouse gas emissions
Lower liabilities
Decreased up-front building costs
Heat island reduction
What helps utilities optimize their supply-side energy generation and delivery systems?
Daylighting automation systems
Building owners that purchase carbon offsets
Customers that enroll in a demand response program
Building submetering
A demand response (DR) event is triggered by the ____.
Facility manager
Building owner
Utility company
Building occupants
If a building owner enrolls in a demand response program, which of the following will happen?
The owner will have to purchase carbon dioxide equivalents equal to the annual grid-generated electricity.
The owner will have to purchase RECs equal to fifty percent of the building's yearly electricity use.
During off-peak times, the building's excess electricity may be sold back to the utility company.
The building may have to decrease electricity use during peak times.
A refrigerated warehouse project in the design phase could reduce its electricity demand by taking which of the following actions?
Purchasing carbon offsets to counter GHG emissions
Enrolling in a demand response program
Purchasing Renewable Energy Credits (RECs)
Purchasing all electricity from a wind farm
An owner wants to install a photovoltaic system on the building's rooftop and sell the excess electricity back to the utility company. Which of the following would be aided by this strategy?
Demand response
On-site renewable energy
Green power
Carbon offsets
A project is located in an area with a demand-response program and on a site that has enough room for a wind-turbine to allow for on-site renewable energy. If the project implements both of these strategies, which of the following will occur?
The project's energy costs will decrease
The project's renewable energy production will decrease
The project's minimum energy performance will decrease
The project's energy demands will decrease
What is the most common way to meet the requirements of off-site renewable energy?
Purchasing Renewable Energy Credits (RECs)
Directly purchasing green power from local utility companies
Installing a rooftop photovoltaic array
Obtaining energy from a geothermal system
Which of the following is NOT an example of on-site generated renewable energy?
Solar
Wind
Biofuel-based electrical system
Renewable Energy Credits (RECs)
Which of the following is a difference between Renewable Energy Credits (RECs) and a carbon offset?
RECs are purchased
RECs encourage the reduction of GHG emissions
RECs are tradable commodities
RECs must be purchased locally
Which of the following is reduced with the help of carbon offsets?
Greenhouse gas emissions
CFCs
Ozone
Water contamination
What does a carbon offset represent?
A tradable commodity representing proof that a unit of electricity was generated from a renewable resource
A unit of carbon dioxide equivalent that is reduced, avoided, or sequestered to compensate for emissions occurring elsewhere.
The energy consumption divided by the number of square feet in a building
The primary measure of energy consumption associated with buildings
A project owner wants to provide financial support to a reforestation project. What would help with this goal?
On-site renewable energy
Green power
Building in a high-priority site
Carbon offsets
To qualify for LEED, carbon offsets must be which of the following?
Green-e Energy certified (or equivalent)
Green-e Climate certified (or equivalent)
ENERGY STAR labeled
Purchased and used within the same state or locale.
What benefit does purchasing off-site renewable energy (Green Power) have?
The building will avoid electricity blackouts
The building design will be more efficient
Off-site renewable energy costs less than off-site non-renewable energy
Less emissions will be generated
What does a REC represent?
The quantity of fossil fuels avoided by purchasing renewable energy, expressed in tons
The amount of energy purchased from a Green-e supplier
The environmental, social, and other positive attributes of power generated by renewable resources
The amount of energy an electricity provider purchases from renewable sources
A building automation system will assist with collecting data about which of the following:
Energy spikes that occur every morning
Complaints from occupants about a loud fan noise in a conference room
Cleanliness of restrooms
Maintenance schedule for replacing air filters
A developer is considering pursuing LEED for an eight-story, multi-family residential project. How would the baseline building performance be determined?
By calculations made using ASHRAE 90.1
By the project obtaining a HERS index
By obtaining an ENERGY STAR for Homes rating
By using the EPA's ENERGY STAR Portfolio Manager
An owner for a new three-story office space wants to know how the building compares to other buildings of similar function. Which of the following can be used to compare the performance of the building?
Local tax records
LEED Online
EPA's ENERGY STAR Portfolio Manager
Commissioning reports
Once occupants are in a building, how can the project team maintain ongoing energy efficiency?
Fundamental Commissioning
By monitoring building automation systems
Recharging refrigerants more often than manufacturers recommendations
By purchasing Renewable Energy Credits (RECs)
Which of the following actions should a project team take to make sure a building remains efficient during its operation?
Verify that no issues occur during a demand-response event
Turn on all systems to their maximum output to confirm the building can handle the load
Ensure that the building systems are functioning as designed and that they support the owner's project requirements
Run computer simulations to prioritize energy-efficiency opportunities
Which of the following would require use of the EPA's ENERGY STAR Portfolio Manager?
Calculating a building's minimum energy use
Bulk uploading project information into LEED online
Registering a large volume of LEED projects
Comparing the ongoing operating performance of a building with its intended design performance
What LEED credits reward projects for improving operational energy performance?
Integrative process
Energy metering
Green power and carbon offsets
Demand response
After a building is completed and occupied, how can energy demand be reduced?
By opening and closing shades to control solar energy
By purchasing environmentally preferable cleaning supplies
By conducting routine waste audits
By encouraging occupants to stagger work hours
Which of the following causes depletion of the ozone layer?
Ammonia
CFCs
Propane
CO2
On a project with an older existing HVAC&R system that uses CFCs, what can the project team do to earn LEED certification?
Recharge the equipment with CFCs
Make a phase out plan for the removal of the CFC based refrigerants
Get a state exemption for the HVAC&R system
Eliminate all refrigerant leaks
What minimum contract length is required for an owner to purchase renewable energy certificates (RECs) for LEED credit?
1 year
3 year
5 year
10 year
What environmental issue is associated with refrigerants used in HVAC&R systems?
Groundwater contamination
Soil contamination
Increased CO2 indoors
Increasing greenhouse gas emissions
Which of the following refrigerant is banned under the Montreal Protocol?
CFCs
Propane
Isopentane
HFCs
Developing nations banned ChloroFluoroCarbons (CFCs) under the:
Kyoto Treaty
Montreal Protocol
EPA Clean Air Act
Executive Order 95-231
What year does the Montreal Protocol phase out HCFCs?
1995
2015
2020
2030
What statement is true regarding HydroFluoroCarbons (HFCs)?
HFCs are scheduled to be banned under the Montreal Protocol
The HFC refrigerant group includes NH3, CO2, and propane
HFCs have high ozone depletion potential
Many HFCs have a significant global warming potential
What statement is true regarding ChloroFluoroCarbons (CFCs) and HydroChloroFluoroCarbons (HCFCs)?
CFCs are being phased-out under the Montreal Protocol while HCFCs are banned under the Montreal Protocol
CFCs have a greater global warming potential (GWP) than HCFCs
The ozone depletion potential (ODP) of HCFCs and CFCs is about the same
LEED encourages replacing CFC or halon-based fire suppression systems with HCFCs
What variable measure a refrigerant's impact on the environment?
Greenhouse gas lifetime
Lifecycle potential
Global warming potential
Global warming period
What has a long atmospheric life that causes harm to the ozone layer?
CFCs
NH3
HCs
HCFCs
Which of the following has the greatest direct impact on global warming?
HVAC operating efficiency
Building orientation
SRI of a building's roof
Size of a project's impermeable areas
What is GWP as it relates to refrigerants?
The speed at which an appliance loses its refrigerant
The potential for a single molecule of the refrigerant to destroy the ozone layer
The efficiency of a refrigerant
A measurement of how much effect the given refrigerant will have on global warming in relation to carbon dioxide.
Which project would NOT be eligible for LEED certification?
A new building project that uses no refrigerants
A new building project that uses hydrocarbons (HCs) as refrigerants
A new building project that uses CFC-based refrigerants
An existing building project that phases out the use of CFC-based refrigerants no later than 5 years after the project is completed
What has ozone depletion potential (ODP)?
Paints with high VOCs
CFC-based refrigerants used in HVAC systems
Construction dust
Runoff from the flooding of a construction site
What statement is true regarding HydroChloroFluoroCarbons (HCFCs)?
HCFCs are refrigerants currently banned by the Montreal Protocol
HCFCs have a low ozone depletion potential compared to CFCs
HCFCs are a type of natural refrigerant
LEED requires zero use of HCFCs
Approximately 50% of chillers in existing buildings use what refrigerant?
CFC-11
HCFC-22
HFC-23
NH3
With regards to refrigerants what is a natural conflict between the prevention of ozone depletion and global warming?
Refrigerants that deplete the ozone layer are less efficient
Refrigerants that are neutral to the ozone layer are less efficient
Refrigerants contain ozone layer gases
Refrigerants contain global warming gases
Which refrigerant is considered environmentally benign?
Halons
HydroFluoroCarbons
Chlorofluorocarbon
Hydrocarbons
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?
The owner must replace the chiller to earn LEED certification
The owner can implement a phase-out plan to earn LEED certification
The owner can leave the existing system in place as-is
The owner will not be able to achieve a Platinum level certification
The project could still achieve any level of certification.
What project areas would you find refrigerants like CFCs?
Hot water heating and Window a/c units
Radiant flooring and Water Coolers
Centrifugal Chillers and Window a/c units
Single Split HVAC systems and Centrifugal Chillers
Which of the following is not an alternative LEED recommends for reducing stratospheric ozone depletion?
Designing a building to use natural ventilation
Selecting refrigerants with lower Ozone Depltion Potential (ODP) and Global Warming Potential (GWP)
Selecting refrigerants that have a long atmospheric lifetimes
Using natural refrigerants
What environmental issue is associated with refrigerants used in HVAC&R systems?
A. Damage to the Earth's ozone layer
Damage to the Earth's ozone layer
Increased air pollution
Increased use of fossil fuels
Pollution of water bodies
What type of energy source generates the least air and water pollution?
Wind
Clean coal
Natural gas
What environmental issue is associated with the burning of fossil fuels?
Release of carbon dioxide
Reduction of water from aquifers
Interference with migratory birds
Sedimentation of water supplies
An owner wants to offset the environmental impact of a building's energy use. What is a benefit of purchasing off-site renewable energy or renewable energy certificates (RECs) over installing onsite renewable energy systems such as photovoltaic panels?
The upfront costs to the building owner would be lower
Off-site renewable energy and RECs are less expensive than grid-source non-renewable energy
RECs only have to be purchased one-time to offset the building's lifetime energy use
RECs can be shared across multiple LEED projects
Reduced emissions are a benefit of purchasing:
Certified wood
Renewable Energy Credits (RECs)
Materials with high SRI
Materials with high SRI
A project owner that chooses to use onsite renewable energy sources instead of oil, coal, and natural gas gets what economic benefit of the triple bottom line?
Decreasing destructive extraction processes
Protection from uncertain supplies
Avoiding escalating market prices
Contributing to national security vulnerability
