First year engineering unit, ENB104 Engineering Materials, exam map

lochfobbingMechanics

Oct 30, 2013 (3 years and 9 months ago)

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1

First year engineering unit, ENB104 Engineering Materials, exam

map


Developed by Dr Tuquabo Tesfamichael and Moira Cordiner

Synopsis of the task (written examination) and its context

The supervised examina
tion
for a QUT unit
was on theory and practical studies centred on 13 main concepts. It was constructed by:



determining which
learning outcomes/
objectives would be used to create the criteria (see table 1)



mapping the questions to these main concepts and a
lso to the criteria (see the table 2 ). This was to ensure a balance, so that no particular concept or criterion
was over
-
assessed


this means that even though the number and nature of questions per topic may vary year to year, the
balance across the crit
eria

is
maintained. Mapping also ensured that the emphasis in the unit was reflected in the examination.



setting the questions by adhering to table 2.

Table 1: Match between
learning outcomes/
objectives and criteria for the task

Learning outcomes/
o
bjectiv
es

Task specific criteria

On compl eti on of thi s uni t you shoul d be abl e to:

To compl ete thi s exam you shoul d:

1. demonstrate theoreti cal and practi cal knowl edge of engi neeri ng materi als

appl y theoreti cal and practi cal knowl edge of engi neeri ng materi al s
(thi s combines
l earni ng outcomes 1 and 2.)


2. appl y theoreti cal and practi cal knowl edge of engi neeri ng materi als to di fferent contexts

3. i nterpret and anal yse data and i nformati on rel ated to mechani cal properti es of
materi al s

i
nterpret and anal yse dat
a and i nformati on

4. sol ve si mpl e numerical probl ems rel ated to mechani cal and other properti es of
materi al s.

s
ol ve si mpl e numeri cal problems

5. communi cate i ndependentl y and i n a team

not assessed i n thi s task




2


Table 2: ENB104 Engineering materials e
xam mapping of questions

(2006 semester 1)


Multiple
-
choice
-

20 marks


Short answers
-

80 marks

Total marks
-

100

Main concepts

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems


(SP)

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems

(SP)

K&A

I&A

SP

1. fundamental concepts and
calculations of crystalline solid
materials and the relationship of crysta
l
structures to properties of engineering
materials

Q2


Q1

Q21
-
c

2 points


Q21
-
c

4 points

3


5

2. important factors (properties) that are
relevant in the selection of materials
during a design of a component or
structure and how these factors are
systema
tically chosen




Q21
-
a

5 points

Q21
-
a

3 points


5

3


3. measurements of the various
mechanical properties of metals
(elastic, tensile, impact, hardness, etc),
calculating the properties using suitable
formulas or analysis (interpret) them
using convenien
t curves (stress
-
strain
curves, force
-
bond strength curves,
impact energy
-
temperature curves, etc)

Q3

Q11

Q4


Q22
-
a

2 points

Q22
-
a

8 points

1

3

9

4. types of imperfections (defects) in
solids and the role these defects play in
affecting (modifying) the b
ehaviour of
materials

Q5






1



5. deformation process in metals and
how this knowledge is applied to
strength metals using the three
strengthening mechanisms (solid
solution strengthening, stain hardening
and grain size reduction)

Q6, Q7



Q22
-
b

5 poi
nts



7






3

Table 2: ENB104 Engineering materials e
xam mapping of questions

(2006 semester 1)


Multiple
-
choice
-

20 marks


Short answers
-

80 marks

Total marks
-

100

Main concepts

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems


(SP)

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems

(SP)

K&A

I&A

SP

6. processing mechanisms of materials
to control and enhance materials
properties through the basic knowledge
and understanding of diffusion in solid
materials



Q8

Q22
-
c

5 points



5


1

7. mechanics of the various failure
modes (fracture, fati
gue and creep) of
engineering materials, methods of
analysing and preventing in
-
service
material failure


Q9



Q21
-
b

6 points



7


8. phase diagrams (temperature
-
composition curves) to understand the
formation of various solid phases and
microstructures,
and the process of
heat treating procedures (TTT curves)
to enhance materials properties (eg.
steels) by changing the microstructures
of materials

Q10

Q12

Q13


Q23
-
a

8 points


1

9

1

9. basic chemical reactions in order to
understand the mechanisms and
ca
uses of metallic corrosions and
degradations and to obtain basic
knowledge on corrosion prevention

Q14,Q15



Q23
-
b

6 points



8



10. materials properties of ceramics
through the knowledge and
understanding of their crystal structures
and bonding, and gai
ning basic
knowledge of ceramic processing

Q16



Q24
-
c

6 points



7






4

Table 2: ENB104 Engineering materials e
xam mapping of questions

(2006 semester 1)


Multiple
-
choice
-

20 marks


Short answers
-

80 marks

Total marks
-

100

Main concepts

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems


(SP)

apply
theoretical
and practical
knowledge
(K&A)

interpret and
analyse data
and
information
(I&A)

solve simple
numerical
problems

(SP)

K&A

I&A

SP

11. how polymeric materials are
influenced by their chemical and
structural characteristics and the effect
of deformation and processing on
polymeric materials properties

Q17



Q23
-
c

6
points



7



12. how a unique behaviour of
composite materials can be achieved
by mixing the family of engineering
materials (metals, ceramics and
polymers)



Q18



Q24
-
a

8 points



9

13. basic electrical properties of
materials, methods of altering elec
trical
properties in semiconductors and effect
of crystal structure to achieve novel
electrical characteristics (ferroelectric
and piezoelectric)

Q19, Q20



Q24
-
b

6 points



8



Totals


12/20

3/20

5/20

41/80

19/80

20/80

53/100

22/100

25/100



60%

15%

25
%

51%

24%

25%

53%

22%

25%



Note the weighting across the criteria in the three far right columns. Applying theoretical and practical knowledge (K&A) is
the most heavily weighted as this is a
first year unit. The other two criteria are roughly equally wei
ghted.