Environmental Management II Semester Test 2

Environmental Management II

Semester Test 1

Date: March 17th 2009 Time: 2 hours Marks: 90 marks Initials and surname:   __________________________________   Student number:   __________________________________

Topics covered: Life Cycle Assessment 1.     What is life cycle assessment 2.    Goal and scope definition 3.    Inventory analysis 4.    Impact assessment   LCA 101 Document p1-24 and Integrated Environmental Management Series 9: Life Cycle Assessment

 

 

 

 

Question 1

 

Why is a life cycle assessment also called a Cradle to Grave assessment?

(6)

 

Question 2

 

What are the four steps you need to take when conducting a LCA? List and briefly describe each of the steps.

 

(4x2=8)

 

Question 3

 

What are three benefits of conducting a LCA?

(3)

 

Question 4

 

What are two limitations of a LCA?

(2)

 

Question 5

 

What is goal definition and scoping?

(3)

 

Question 6

 

Which six decisions need to be made in the goal and scoping definition step to make effective use of time and resources?

(6)

 

Question 7

 

Make a simple drawing to show the different stages in the life of a product. You need to go into somewhat detail in each step. If the step contains smaller steps you need to include them as well.

(10)

 

Question 8

 

What is a life cycle inventory? Provide a definition or answer in your own words.

(3)

 

Question 9

 

Why do you need to conduct a life cycle inventory?

(2)

 

Question 10

 

Name the four key steps in the life cycle inventory.

(4)

 

Question 11

 

Give four data sources commonly used to collect data in the life cycle inventory step.

(4)

 

Question 12

 

Name and very briefly explain the differences between the three types of LCA commonly conducted.

(6)

 

Question 13

 

What is life cycle impact assessment? Provide a definition or answer in your own words.

(3)

 

Question 14

 

Why do we need to conduct a life cycle impact assessment?

(2)

 

Question 15

 

List the seven steps you need to perform when doing a life cycle impact assessment.

(7)

 

Question 16

 

Classify the following chemical species into one of the following impact categories:

 

(Global warming, ozone depletion, acidification, eutrophication, photochemical smog, terrestrial and aquatic toxicity)

 

Simply write the correct category next to the question number.

 

16.1 Chloroflourocarbons

16.2 Carbon dioxide

16.3 Hydroflouric acid

16.4 Chromium (IV) ions

(4)

 

Total (73)