2020APS110TestMCQSOLUTIONS
.pdf
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University of Toronto *
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Course
110H!
Subject
Mechanical Engineering
Date
Dec 6, 2023
Type
Pages
24
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CONCEPT
VERSION
UNIVERSITY
OF
TORONTO
FACULTY
OF
APPLIED
SCIENCE
AND
ENGINEERING
Multiple
Choice
Assessment
Due:
October
29t
2020
by
2359
Eastern
Daylight
Time
(Toronto)
First
Year
APS110
-
INTRODUCTORY
CHEMISTRY
AND
MATERIALS
SCIENCE
Exam
Type:
X
(Open
Book;
Internet,
if
not
communicated
/posted
during
test:
no
communication
with
others)
Examiners:
M
Kortschot,
CQ
Jia,
SD
Ramsay
Note:
as
thes
13
a
final
assessmend,
late
submessions
wnll
not
be
accepled.
This
means
that
if
you
do
not
submit
your
responses
successfully
to
Crowdmark
by
the
deadline
you
will
not
be
able
to
submit
and
you
will
need
Lo
submsl
an
official
petilron.
Therefore,
il
+s
higyhly
advisable
thal
you
make
plans
to
complete
and
submit
your
final
responses
2-3
hours
early.
Instructions:
¢
You
must
correctly
indicate your
test
version
code
on
your
the
Microsoft
[orm.
If
you
do
not,
or
[ill
this
in
incorrectly,
vour
[inal
assessment
will
not
be
graded.
¢
Answer
all
questions.
e
Fill
in
the
answers
on
the
Microsoft
Form.
Concept
version
Page
1
of
24
.
oL
Af:
/.09~
/"
+
§HOwm
€
:
4o
(o
)P«
.
yo(w").
21
.
gs(10*)P
<=
YO
)gqo
6(!)«
s
65
NMN&
1.
Which
of
the
following
are
the
correct
units
for
strain?
(a)”Dimensionless
b)
mm
(¢)
m
(d)
inches
Correct
answers:
(a)/
.
The
Abraham
Lincoln
DBridge,
spanning
the
Ohio
River
from
Louisville,
Kentucky
to
Jeffersonville,
Indiana,
is
designed
with
ex-
pansion
joints
to
provide
for
1.04m
of
linear
thermal
expansion
along
the
length
of
the
bridge.
Consider
if
this
bridge
had
been
built
with-
out
these
expansion
joints
and
1.04m
of
linear
expansion
occurred,
but
the
bridge
was
rigidly
[ixed
at
both
ends,
preventing
this
expan-
sion.
If
the
elastic
modulus
of
the
concrete
in
the
bridge
is
40
GPa
and
the
compressive
fracture
strex
of
the
concrete
is
28
MPa,
what
stress
would
you
expect
to
be
imposed,
_on
the
bridge?
LTo'tc.\
S
éqOM
OJ\’/
(Expansion
joint
data
from
www.rjwatson.com/Projects/ohio-river-
bridge-rjw-linger-joints,
accessed
October
25,
2020,
Image
[rom
Censusdata
at
English
Wikipedia,
commons.wikimedia.org/wiki/
File:2016
WIKI_AbrahamLincolnBridgeLouKYJunel2.jpg,
CC
BY-SA
4.0
creativecommons.org/licenses/by-sa/4.0,
via
Wikimedia
Commons.))
@
MPa
5]
21
MPa
(c)
3MPa
(d)
6
GPa
Correct
answers:
(a)
Concept
version
Page
2
of
24
—
/_—:;—
’
)
&/
Cwol
T
SR
o
IRCE
Y
-
[
]
_
O.D’L
-
b
PpT7xcC
7
3.
T'wo
ropes
are
cut,
the
first
to
1m
in
length
and
the
second
to
3m
in
length.
Both
pieces
of
rope
are
then
stretched
by
2
cm.
What
will
2
the
ratio
of
the
strain
in
the
first
to
the
strain
in
the
second
be?
b
Ore
‘g'
-
qual
because
strain
is
sample
size
independent
-
3
?
Z(u)'l)
(c)
0.33
)
2
Correct
answers:
(a)
\_/
-’)
4.
Referring
to
the
figure
below,
noting
that
both
cylinders
are
made
from
the
sai
aterjal,
which
of
the
following
statements
are
correct
cvlinders
®A”
and
"B"?
“
AII
"
B”
lo
RCLLDR
(a)
ABoth
cylinders
have
the
ame
stress
and
the
same
strain
F
F
.
:
E
(b)
Both
cylinders
have
the
|
same
stress
only
=
(c)
Both
cylinders
have
the
same
strain
only
Iy+Al
(d)
Ir‘npossablg
to
detgrmme
-
from
information
provided
PO
"
s
~
Cp
-
LY
4
Correct
answers:
(a)
Concept
version
Page
3
of
24
5.
A
sample
of
a
heavily
cold
worked
316L
stainless
steel
is
heated
for
several
hours
in
a
furnace
at
1065°C.
The
sample
is
then
allowed
to
¢
o
room
temperature.
Relative
to
the
value
before
the
heat
treatment,
the
Young’s
modulus
after
this'
heat
t.roat.menét_swill
be
which
of
the
following?
Sow
Heat
Less
v
—=ne.ohen
-
ok
S
5)
Greater
than
(‘l'b
Qron
Size
A
b
botend
(¢
Spmly
m
v
?
(d)
Unable
to
determine
with
information
provided
Correct
answers:
(a)
6.
A
sample
of
a
heavily
cold
worked
316L
stainless
steel
is
heated
for
several
hours
in
a
furnace
at
1065°C.
The
sample
is
then
allowed
to
cool
to
room
temperature.
Relative
to
the
value
before
the
heat
treatment,
the
vield
strength
after
this
heat
treatment,
will
be
which
of
the
following?
I/’G‘;'i'o'(
et
T
a)
Less
than
Lsy,
Chy
¥Rz
Ghwe
(b)
Greater
than\/
Lp
grew
she
b
Ly
Gudots
f
1>
6)'*9“,5%5'4\
The
same
as
(d)
Unable
to
determine
with
information
provided
Correct
answers:
(a)
7.
A
sample
of
a
heavily
cold
worked
316L
stainless
steel
is
heated
for
several
hours
in
a
furnace
at
1065°C.
The
sample
is
then
allowed
to
cool_to
room
temperature.
Relative
to
the
value
before
the
heat
treatment,
the
plastic
deformation
at
fracture
after
this
heat
treat-
}
N
.
.
.
.
?
.
)
ment
will
be
which
of
the
following’
ol
NN
%
D
*"""U
v
Greater
than
ess
than
The
same
as
(d)
Unable
to
determine
with
information
provided
Correct
answers:
(a)
Concept
version
Page
4
of
24
8.
Referring
to
the
stress-strain
curve
below,
which
of
the
following
is
closest
to
the
value
for
the
yield
strength?
RS
R
R
R
LA
A
AN
AN
LR
RN
LA
AR
o)
@
=
e
=
o~
[
-
~
=]
>
=}
=
=
=
)
»
-
c
o
(=]
=
oD
(=1
60
MPa
)
150
MPa
(¢)
300MPa
Concept
version
Page
5
of
24
9.
Referring
to
the
stress-strain
curve
below,
which
of
the
following
is
closest
to
the
value
for
the
ultimate
tensile
strength?
33
-
%_‘-\\
%
4
0
:
:
:
:
i
—
2504
.
-
0
.Fo,e
4
.
(A
:
Rond*j
-
200
(
[
-]
—
-
Dow»
-
c
=
L
———
—
100
-
—
—4
4
e
RS
RREES
RN
RR
AR
AR
RN
RAR
RS
AR
LA
AR
AR
RRRAR
C
™
2]
-
O
-~
@
[~
o
™
o~
[
C
]
o
o
o
=}
-]
o
-
o
-
-
-
-
o
o
o
o
o
o
o
o
o
o
o
o
S
(¢)
200MPa
(d)
260
MPa
Correct
answers:
(a)
/
Concept
version
Page
6
of
24
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Mechanics of Materials (10th Edition)
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Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
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ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY