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Life Cycle Assessment of Energy and LED Lighting


Quiz Questions

1.What does CFL stand for?
Compact Fluorescent Lamps
Compact Filled Lamps
Compact Fluoride Lamps
None of the above.
2. The following picture shows ________________.
Life Cycle Assessment of Energy and LED Lighting

Main phases of LED
Main phases of CFL
Main phases of LCA
None of the above.
3.The ____________ is a quantified measure of performance that serves as the basis for comparison when considering the environmental impacts of multiple product systems.
functional unit
unit process
system boundaries
product system
4.End of Life is the phase at which the consumer needs the product.
True
False
5.The __________ step in Life cycle assessment includes drawing conclusions and making recommendations from the inventory analysis and/or impact assessment.
Life-Cycle Inventory Analysis
Life-Cycle Interpretation
Life-Cycle Impact Assessment
None of the above
6.

Operating lifetime of incandescent lamp is ___________ hrs.

100
1000
5500
8000
7.The manufacture of an LED package is an extremely technical and complex process. However, in an effort to simplify, the manufacturing of an LED package is broken down into ___________ segments.
two
three
four
five
8.For a CFL with an output of 900 lumens and an operating lifetime of 8,500 hours one would need _________ lamps to supply 20 million lumen-hours of lighting service.
One
Two
Three
Four
9.Life-cycle inventory (LCI) analysis involves data collection and calculation procedures to quantify relevant inputs and outputs of the product system(s) (i.e., the incandescent lamps, CFLs, and LED lamps).
True
False
10.The ____________ phase of LED manufacturing is referred to as the "packaging" of the device, and involves mounting the LED chip in housing, providing electrical connections, coating with phosphor (for pc-LED packages), and applying the encapsulant and optics.
initial
secondary
final
Delivery
11.Due to the low efficacy of incandescent lighting, the results indicate that its use phase energy consumption is by far the greatest compared to both the CFL and LED lamp.
True
False
12.To calculate the aggregate LED lamp manufacturing energy, __________main assumptions were made.
Three
Four
Five
Six
13.___________ is currently the largest CFL manufacturer in the world (USAID, 2008).
North America
Europe
India
China
14.The _________ phase of a lamp product’s life cycle is associated with the consumption of electricity to produce light.
manufacturing
use
distribution
transport
15.For an incandescent lamp the use phase represents over __________ percent of total life-cycle energy with the remaining percent allotted between manufacturing and transport.
80
85
90
99