Page 97 - CAPE Green Engineering Syllabus 2016.docx_Neat

-6- 02165020/CAPE/KMS 2015 SPEC

GREEN ENGINEERING
UNIT 1 - PAPER 02
KEY AND MARK SCHEME

Question 3.

S.O Suggested Response Mark Marks
Allocation KC AK PS

1:2:1 (a) Green engineering is the design and 1 2
production of products or 1
infrastructure with the aim of
conserving natural resources leading to
sustainability goals.

As such green engineering focuses on
achieving sustainability through the
application of science, technology and
innovation.

1:2:1 (b) Any two of the twelve principles, for 2 (1 for 2
example, each 6
principle)

Materials and energy must be inherently 1
non-hazardous, rather than 1
circumstantial.
1
This principle means that when choosing (3 for each
energy sources or materials to be used explanation)
in the design of any product or
infrastructure, care should be taken to
ensure that these are safe as is.

Also, there should be minimum input to
reduce any inherent danger these may
cause the process, finished product or
infrastructure to possess.

1:2:5 (c) Industrial ecology is based on the need 1 4
for humanity to mirror as much as 1
possible the manner in which organisms
optimize the resources within their 1
environment. 1

Industrial ecology is an integration of
various processes with the objective to
optimize the use of inputs (energy and
material) for the production of any man
made item.