MMET 206 EXAM #1 || 100% EXACT ANSWERS.
purpose of conducting life cycle assessment (LCA) correct answers making our living
environment more sustainable
european unions RoHS (restriction of hazardous substances), effective july 1, 2006, restrict the
use of the following 6 substances in electrical and electronic equipment: correct answers - lead
- mercury
- cadmium
- hexavalent chromium
- PBB and PBDE (flame retardants used in plastics)
____ ____ is the energy required to produce materials from ores and feedstocks correct answers
embodied energy
aluminum embodied energy is ______ MJ/Kg correct answers 200 MJ/Kg
used recycled aluminum requires about ____ % less energy than converting bauxite into metal
correct answers 95%
it required ____ % less energy to make steels from recycled scrap than to make it from iron ore.
correct answers 33%
Today, _____ of new steel is made from recycled steel correct answers 2/3
Carbon footprint: correct answers the total amount of greenhouse gas (GHG) emissions caused
directly and indirectly by an individual, organization, event, or product
carbon dioxide accounts for ____ % of greenhouse gases correct answers 81%
, methane accounts for ____ % of ghg correct answers 11%
total emissions in 2014 = ____ billion metric tons of CO2 equivalent correct answers 6.87 billion
tons of CO2
____ % of GHG come from fossil fuel combustion correct answers 95%
Which industrial sector burns the most fossil fuel? correct answers Electricity generation - 42%
(coal and natural gas)
"Transportation" - 32% (petroleum)
sources of electricity: ____% come from fossil fuel in U.S correct answers 70%
sources of electricity in France: fossil fuel is _____ correct answers 10%
how much CO2 does coal create per hour? correct answers 2.095 lbs/kWh
how much CO2 does petroleum create per hour? correct answers 1.969 lbs/kWh
how much CO2 does natural gas create per hour? correct answers 1.321 lbs/kWh
how much CO2 will be released to the atmosphere by burning 1 gallon of gasoline? correct
answers 9 kg or 20 lbs
3 tests conducted to test mechanical properties correct answers - tensile test
- impact test
- hardness test
purpose of conducting life cycle assessment (LCA) correct answers making our living
environment more sustainable
european unions RoHS (restriction of hazardous substances), effective july 1, 2006, restrict the
use of the following 6 substances in electrical and electronic equipment: correct answers - lead
- mercury
- cadmium
- hexavalent chromium
- PBB and PBDE (flame retardants used in plastics)
____ ____ is the energy required to produce materials from ores and feedstocks correct answers
embodied energy
aluminum embodied energy is ______ MJ/Kg correct answers 200 MJ/Kg
used recycled aluminum requires about ____ % less energy than converting bauxite into metal
correct answers 95%
it required ____ % less energy to make steels from recycled scrap than to make it from iron ore.
correct answers 33%
Today, _____ of new steel is made from recycled steel correct answers 2/3
Carbon footprint: correct answers the total amount of greenhouse gas (GHG) emissions caused
directly and indirectly by an individual, organization, event, or product
carbon dioxide accounts for ____ % of greenhouse gases correct answers 81%
, methane accounts for ____ % of ghg correct answers 11%
total emissions in 2014 = ____ billion metric tons of CO2 equivalent correct answers 6.87 billion
tons of CO2
____ % of GHG come from fossil fuel combustion correct answers 95%
Which industrial sector burns the most fossil fuel? correct answers Electricity generation - 42%
(coal and natural gas)
"Transportation" - 32% (petroleum)
sources of electricity: ____% come from fossil fuel in U.S correct answers 70%
sources of electricity in France: fossil fuel is _____ correct answers 10%
how much CO2 does coal create per hour? correct answers 2.095 lbs/kWh
how much CO2 does petroleum create per hour? correct answers 1.969 lbs/kWh
how much CO2 does natural gas create per hour? correct answers 1.321 lbs/kWh
how much CO2 will be released to the atmosphere by burning 1 gallon of gasoline? correct
answers 9 kg or 20 lbs
3 tests conducted to test mechanical properties correct answers - tensile test
- impact test
- hardness test
