LCA Exam 1 Questions and Answers 100%
Correct
The LCA inventory is just a list of all the _______ and ________ within the scope boundaries
inputs, outputs
types of inventory data foreground/primary data
- Specific data on a particular product or process
- Best obtained directly from the company/engineers involved
- Relatively easy to get if you work for the company involved: very difficult to get if you do not
have a strong relationship with the company
background/secondary data
- Generic data on a materials, energy, transport, waste management, etc.
- Data generally obtained from the literature or compiled in databases
- Often average value from many industries or processes
,In both cases of inventory data , the details of the _____ ___________ and ____ _______should
be explicitly documented in the Goals and Scope section data sources, data quality
inventory data sources personal measurements and record
corporate records
product specification sheets
government or organization reports
journal articles
LCA databases and software
what is a co-product outputs which are not the primary output but still have use or value
allocation allocate/share environmental impacts between inventory
, LCA Life Cycle Assessment
a formal, quantitative method to assess environmental impact of a product, process, or system
quantifies all inputs/outputs and allows analysis of both environmental impacts and total cost
LCA is a model of ____________ and _____________ along with associated impacts on the
________________. inputs, outputs, environment
LCA is a form of ______ ____________ applied to environmental and human health factors
risk analysis
LCA modeling background - engineers/scientists use models for analysis/prediction, but
are always approximations
- "What if" scenarios can be analyzed relatively easily for products which don't even exist yet
- models can be updated when new or better info becomes available
Correct
The LCA inventory is just a list of all the _______ and ________ within the scope boundaries
inputs, outputs
types of inventory data foreground/primary data
- Specific data on a particular product or process
- Best obtained directly from the company/engineers involved
- Relatively easy to get if you work for the company involved: very difficult to get if you do not
have a strong relationship with the company
background/secondary data
- Generic data on a materials, energy, transport, waste management, etc.
- Data generally obtained from the literature or compiled in databases
- Often average value from many industries or processes
,In both cases of inventory data , the details of the _____ ___________ and ____ _______should
be explicitly documented in the Goals and Scope section data sources, data quality
inventory data sources personal measurements and record
corporate records
product specification sheets
government or organization reports
journal articles
LCA databases and software
what is a co-product outputs which are not the primary output but still have use or value
allocation allocate/share environmental impacts between inventory
, LCA Life Cycle Assessment
a formal, quantitative method to assess environmental impact of a product, process, or system
quantifies all inputs/outputs and allows analysis of both environmental impacts and total cost
LCA is a model of ____________ and _____________ along with associated impacts on the
________________. inputs, outputs, environment
LCA is a form of ______ ____________ applied to environmental and human health factors
risk analysis
LCA modeling background - engineers/scientists use models for analysis/prediction, but
are always approximations
- "What if" scenarios can be analyzed relatively easily for products which don't even exist yet
- models can be updated when new or better info becomes available
